Kai Peiponen

Al-Sharabi, Mohammed; Markl, Daniel; Mudley, Theona; Bawuah, Prince; Karttunen, Anssi-Pekka; Ridgway, Cathy; Gane, Patrick; Ketolainen, Jarkko; Peiponen, Kai-Erik; Rades, Thomas; Zeitler, J. Axel. 2020. Simultaneous Investigation of the Liquid Transport and Swelling Performance during Tablet Disintegration International journal of pharmaceutics 584: 119380. 2020

Asamoah, Benjamin; Roussey, Matthieu; Peiponen, Kai-Erik. 2020. On optical sensing of surface roughness of flat and curved microplastics in water Chemosphere 254: 126789. 2020

Asamoah, BO; Amoani, J; Roussey, M; Peiponen, K-E. 2020. Laser beam scattering for the detection of flat, curved, smooth, and rough microplastics in water Optical review 27: 217-224. 2020

Kanyathare, B; Asamoah, BO; Ishaq, U; Amoani, J; Räty, J; Peiponen, KE. 2020. Optical transmission spectra study in visible and near-infrared spectral range for identification of rough transparent plastics in aquatic environments Chemosphere 248: 126071. 2020

Kanyathare, Boniphace Elphace; Asamoah, Benjamin; Ishaq, Muhammad Umair; Amoani, James; Räty, Jukka; Peiponen, Kai-Erik. 2020. Identification of Plastic Type and Surface Roughness of Film-Type Plastics in Water Using Kramers-Kronig Analysis Chemosensors 8 4: 88. 2020

Peiponen, Kai-Erik; Asamoah, Benjamin O; Kanyathare, Boniphace; Räty, Jukka; Roussey, Matthieu. 2020. Detecting Microplastics with Optics Optics and photonics news 31 11: 24-31. 2020

Andoh, Sampson Saj; Nyave, Kenneth; Asamoah, Benjamin; Kanyathare, Boniphace; Nuutinen, Tarmo; Mingle, Cheetham; Peiponen, Kai-Erik; Roussey, Matthieu. 2020. Optical screening for presence of banned Sudan III and Sudan IV dyes in edible palm oils Food additives and contaminants part a: chemistry analysis control exposureand risk assessment 37 7: 1049-1060. 2020

Asamoah, BO; Kanyathare, B; Roussey, M; Peiponen, KE. 2019. A prototype of a portable optical sensor for the detection of transparent and translucent microplastics in freshwater Chemosphere 231: 161-167. 2019

Kanyathare, Boniphace; Peiponen, Kai-Erik. 2018. Wavelength-dependent excess permittivity as indicator of kerosene in diesel oil. APPLIED OPTICS 57 12: 2997-3002. 2018

Peiponen, Kai-Erik; Räty, Jukka; Ishaq, Umair; Pélisset, Ségolene; Ali, Rizwan. 2018. Outlook on optical identification of micro- and nanoplastics in aquatic environments Chemosphere 214: 424-429. 2018

Peiponen, Kai-Erik; Kanyathare, Boniphace; Asamoah, Benjamin. 2018. Laser light scattering from rough glass liquid interface: a case study of screening of adulterated diesel oils Asian journal of physics 27 9-12: 467-474. 2018

Markl, Daniel; Wang, Parry; Ridgway, Cathy; Karttunen, Anssi-Pekka; Bawuah, Prince; Ketolainen, Jarkko; Gane, Patrick; Peiponen, Kai-Erik; Zeitler, J Axel. 2018. Resolving the rapid water absorption of porous functionalised calcium carbonate powder compacts by terahertz pulsed imaging. Chemical Engineering Research And Design 132: 1082-1090. 2018

Markl, D; Strobel, A; Schlossnikl, R; Bøtker, J; Bawuah, P; Ridgway, C; Rantanen, J; Rades, T; Gane, P; Peiponen, KE; Zeitler, JA. 2018. Characterisation of Pore Structures of Pharmaceutical Tablets: A Review. INTERNATIONAL JOURNAL OF PHARMACEUTICS 538 1-2: 188-214. 2018

Kanyathare, B; Peiponen, KE. 2018. Hand-Held Refractometer-Based Measurement and Excess Permittivity Analysis Method for Detection of Diesel Oils Adulterated by Kerosene in Field Conditions. Sensors 18 5: 1551. 2018

Kanyathare, Boniphace; Kuivalainen, Kalle; Räty, Jukka; Silfsten, Pertti; Bawuah, Prince; Peiponen, Kai-Erik. 2018. A prototype of an optical sensor for the identification of diesel oil adulterated by kerosene. Journal of the European Optical Society: Rapid Publications 14: 3. 2018

Kanyathare, Boniphace; Asamoah, Benjamin; Peiponen, Kai-Erik. 2018. Imaginary optical constants in near-infrared (NIR) spectral range for the separation and discrimination of adulterated diesel oil binary mixtures Optical review 2019; 26 1: 85-94. 2018

Bawuah, Prince; Zeitler, J Axel; Ketolainen, Jarkko; Peiponen Kai-Erik. 2018. Terahertz absorption spectra of commonly used antimalarial drugs. OPTICAL REVIEW 25 3: 444-449. 2018

Bawuah, Prince; Karttunen, Anssi-Pekka; Markl, Daniel; Ridgway, Cathy; Korhonen, Ossi; Gane, Patrick; Zeitler, J Axel; Ketolainen, Jarkko; Peiponen, Kai-Erik. 2018. Investigating elastic relaxation effects on the optical properties of functionalised calcium carbonate compacts using optics-based Heckel analysis INTERNATIONAL JOURNAL OF PHARMACEUTICS 544 1: 278-284. 2018

Asamoah, Benjamin; Peiponen, Kai-Erik. 2018. Scanning of skin gloss by a diffractive optical element-based handheld glossmeter Optical review 25 6: 694-700. 2018

Asamoah, Benjamin Osae; Kanyathare, Boniphace; Peiponen, Kai-Erik. 2018. Table model and portable optical sensors for the monitoring of time-dependent liquid spreading over rough surfaces Journal of the European Optical Society - Rapid Publications 14: 24. 2018

Markl Daniel, Wang Parry, Ridgway Cathy, Karttunen Anssi-Pekka, Chakraborty Mousumi, Bawuah Prince, Pääkkönen Pertti, Gane Patrick, Ketolainen Jarkko, Peiponen Kai, Zeitler J Axel. 2017. Characterization of the Pore Structure of Functionalized Calcium Carbonate Tablets by Terahertz Time-Domain Spectroscopy and X-ray Computed Microtomography. JOURNAL OF PHARMACEUTICAL SCIENCES 106 6: 1586-1595. 2017

Tåg Carl-Mikael, Silfsten Pertti, Peiponen Kai-Erik, Gane Patrick A C, Ridgeway Cathy J. 2017. Impact of fountain solution addition level on tack and optical properties of the print of a mechanically distributed water-in-oil thin film emulsion. Nordic Pulp & Paper Research Journal 32 3: 436-443. 2017

Ridgway Cathy, Bawuah Prince, Markl Daniel, Zeitler J Axel, Ketolainen Jarkko, Peiponen Kai-Erik, Gane Patrick. 2017. On the role of API in determining porosity, pore structure and bulk modulus of the skeletal material in pharmaceutical tablets formed with MCC as sole excipient. INTERNATIONAL JOURNAL OF PHARMACEUTICS 526 1-2: 321-331. 2017

Niskanen Ilpo, Räty Jukka, Peiponen Kai-Erik. 2017. On the Immersion Liquid Evaporation Method Based on the Dynamic Sweep of Magnitude of the Refractive Index of a Binary Liquid Mixture : A Case Study on Determining Mineral Particle Light Dispersion. APPLIED SPECTROSCOPY 71 7: 1586-1592. 2017

Prince Bawuah, J. Axel Zeitler, Kai-Erik Peiponen. 2017. On terahertz absorption spectra of commonly used antimalarial drugs. Teoksessa: Takamasa Suzuki (toim.), Symposium. Faculty of Engineering, Niigata University, Japan. s. N/A. 2017

Markl Daniel, Ridgway Cathy, Bawuah Prince, Gane Patrick, Ketolainen Jarkko, Peiponen Kai-Erik, Zeitler Axel. 2017. Analysis of Anisotropic Pore Structures using Terahertz Spectroscopy and Imaging. Teoksessa: - (toim.), 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2017. International Conference on Infrared, Millimeter, and Terahertz Waves 2017. s. -. 2017

Markl Daniel, Bawuah Prince, Ridgway Cathy, van den Ban Sander, Goodwin Daniel J, Ketolainen Jarkko, Gane Patrick, Peiponen Kai-Erik, Zeitler J.Axel. 2017. Fast and non-destructive pore structure analysis using terahertz time-domain spectroscopy. INTERNATIONAL JOURNAL OF PHARMACEUTICS 2018; 537 1-2: 102-110. 2017

Bawuah Prince, Pääkkönen Pertti, Peiponen Kai-Erik. 2017. Gloss measurement in detection of surface quality of pharmaceutical tablets: a case study of screening of genuine and counterfeit antimalaria tablets. Journal of the European Optical Society: Rapid Publications 13: 18. 2017

Laitinen R, Räty J, Korhonen K, Ketolainen J, Peiponen K-E. 2017. Reflectometric monitoring of the dissolution process of thin polymeric films. INTERNATIONAL JOURNAL OF PHARMACEUTICS 523 1: 127-132. 2017

Chakraborty Mousumi, Ridgway Cathy, Bawuah Prince, Markl Daniel, Gane Patrick AC, Ketolainen Jarkko, Zeitler J Axel, Peiponen Kai-Erik. 2017. Optics-based compressibility parameter for pharmaceutical tablets obtained with the aid of the terahertz refractive index. INTERNATIONAL JOURNAL OF PHARMACEUTICS 525 1: 85-91. 2017

Bawuah Prince, Chakraborty Mousumi, Ervasti Tuomas, Zeitler J Axel, Ketolainen Jarkko, Gane Patrick A C, Peiponen Kai-Erik. 2016. A structure parameter for porous pharmaceutical tablets obtained with the aid of Wiener bounds for effective permittivity and terahertz time-delay measurement. INTERNATIONAL JOURNAL OF PHARMACEUTICS 506 1-2: 87-92. 2016

Bawuah Prince, Ervasti Tuomas, Tan Nicholas, Zeitler J Axel, Ketolainen Jarkko, Peiponen Kai-Erik. 2016. Noninvasive porosity measurement of biconvex tablets using terahertz pulses. INTERNATIONAL JOURNAL OF PHARMACEUTICS 509 1-2: 439-443. 2016

Bawuah Prince, Peiponen Kai-Erik. 2016. A terahertz time-domain study on the estimation of optomechanical properties of pharmaceutical tablets using the Hashin-Shtrikman bounds for refractive index: a case study of microcrystalline cellulose and starch acetate compacts. OPTICAL REVIEW [Epub ahead of print 26 Feb 2016]: 1-8. 2016

Bawuah Prince, Tan Nicholas, Tweneboah Samuel Nana A., Ervasti Tuomas, Zeitler J Axel, Ketolainen Jarkko, Peiponen Kai-Erik. 2016. Terahertz study on porosity and mass fraction of active pharmaceutical ingredient of pharmaceutical tablets. EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS 105: 122-133. 2016

Chakraborty Mousumi, Bawuah Prince, Tan Nicholas, Ervasti Tuomas, Pääkkönen Pertti, Zeitler J Axel, Ketolainen Jarkko, Peiponen Kai-Erik. 2016. On the Correlation of Effective Terahertz Refractive Index and Average Surface Roughness of Pharmaceutical Tablets. Journal of Infrared, Millimeter, and Terahertz Waves First online: 14 March 2016: 1-10. 2016

Peiponen K-E, Zeitler Axel J. 2016. Terahertz spectroscopy theory. Teoksessa: John Lindon, George E. Tranter, David Koppenaal (toim.) The Encyclopedia of Spectroscopy and Spectrometry, 3rd edition. Elsevier. s. 439-443. 2016

Prince Bawuah, Mousumi Chakraborty, Tuomas Ervasti, J. Axel Zeitler, Jarkko Ketolainen, Kai-Erik Peiponen. 2016. Terahertz time-domain study on selected parameters of pharmaceutical tablets using effective medium approximations. Teoksessa: TUT (toim.), Abstract. Tampere university of technology. s. N/A. 2016

Räty Jukka, Peiponen Kai-Erik. 2015. Inverse Abbe-method for observing small refractive index changes in liquids. TALANTA 137: 143-147. 2015

Peiponen Kai-Erik, Bawuah Prince, Chakraborty Mousumi, Juuti Mikko, Zeitler J Axel, Ketolainen Jarkko. 2015. Estimation of Young's modulus of pharmaceutical tablet obtained by terahertz time-delay measurement. INTERNATIONAL JOURNAL OF PHARMACEUTICS 489 1-2: 100-105. 2015

Bawuah Prince, Kissi Eric Ofosu, Tan Nicholas, Zeitler J. Axel, Peiponen Kai-Erik. 2015. DETECTION OF ORIGINAL AND FAKE ANTIMALARIALS BY THZ RADIATION. Teoksessa: Tero Setälä, Ari T. Friberg, Jyrki Saarinen, Jani Tervo (toim.), Northern Optics & Photonics 2015. UEF/Department of Physics and Mathematics. s. 58. 2015

Bawuah Prince, Ervasti Tuomas, Tan Nicholas, Ketolainen Jarkko, Zeitler J Axel, Peiponen Kai-Erik. 2015. A Quantitative study on the change of the effective refractive index of pharmaceutical tablets using terahertz-time-domain spectroscopy. Teoksessa: Prince Bawuah, Kai-Eric Peiponen (toim.), The Eleventh Finland-Japan Joint Symposium on OPTICS IN ENGINEERING (OIE2015). UEF. s. 18-19. 2015

Bawuah Prince, Kiss Marton Zsolt, Silfsten Pertti, Tag Carl-Mikael, Gane Patrick A C, Peiponen Kai-Erik. 2014. Far Infrared (THz) Absorption Spectra for the Quantitative Differentiation of Calcium Carbonate Crystal Structures: Exemplified in Mixtures and in Paper Coatings. OPTICAL REVIEW 21 3: 373-377. 2014

Bawuah Prince, Pierotic Mendia Alessandra, Silfsten Pertti, Pääkkönen Pertti, Ervasti Tuomas, Ketolainen Jarkko, Zeitler J. Axel, Peiponen Kai-Erik. 2014. Detection of porosity of pharmaceutical compacts by terahertz radiation transmission and light reflection measurement techniques. INTERNATIONAL JOURNAL OF PHARMACEUTICS Volume 465 Issues 1-2: 70-76. 2014

Bawuah Prince, Silfsten Pertti, Ervasti Tuomas, Ketolainen Jarkko, Zeitler J. Axel, Peiponen Kai-Erik. 2014. Non-contact weight measurement of flat-faced pharmaceutical tablets using terahertz transmission pulse delay measurements. INTERNATIONAL JOURNAL OF PHARMACEUTICS 276: 16-22. 2014

Hirvonen Tapani, Orava Joni, Penttinen Niko, Luostarinen Katri, Hauta-Kasari Markku, Sorjonen Mika, Peiponen Kai-Erik. 2014. Spectral image database for observing the quality of Nordic sawn timbers. WOOD SCIENCE AND TECHNOLOGY 48 5: 995-1003. 2014

Hirvonen Tapani, Penttinen Niko, Hauta-Kasari Markku, Sorjonen Mika, Peiponen Kai-Erik. 2014. Near-Infrared Imaging Method for Measuring the Thickness of Water-Dilutable Turbid Layers. Journal of Imaging Science and Technology 58 1: 105031-105034. 2014

Kissi Eric Ofosu, Bawuah Prince, Silfsten Pertti, Peiponen Kai-Erik. 2014. A Tape Method for Fast Characterization and Identification of Active Pharmaceutical Ingredients in the 2-18 THz Spectral Range. Journal of Infrared, Millimeter, and Terahertz Waves Epub: -. 2014

P. Bawuah, P. Silfsten, T. Ervasti, J. Ketolainen, A. Zeitler, K-E. Peiponen. 2014. Towards a Noninvasive Detection of the Porosity, Absolute Weight and Height of Pharmaceutical Compacts Using a Training Set of Tablets and THz Pulse Delay. Teoksessa: American Association of Pharmaceutical Scientists (AAPS): Published Meeting Abstracts (toim.), Abstract. 2014

Rissanen Reetaleena, Niskanen Ilpo, Räty Jukka, Kyyrönen Pirjo, Leinonen Asta, Myllylä Risto, Peiponen Kai-Erik. 2014. Optical multi-sensor for simultaneous measurement of absorbance, turbidity, and fluorescence of a liquid. OPTICAL REVIEW 21 3: 395-400. 2014

Vartiainen Erik M, Peiponen Kai-Erik. 2013. Optical and terahertz spectra analysis by the maximum entropy method. REPORTS ON PROGRESS IN PHYSICS 76 6: -. 2013

Räty Jukka, Niskanen Ilpo, Peiponen Kai-Erik. 2013. Use of light dispersion for monitoring particle purity. Sensors and Actuators B: Chemical 188: 1183-1186. 2013

Vartiainen Erik M, Bawuah Prince, Silfsten Pertti, Sarkar Anjan, Kordas Krisztian, Mikkola Jyri-Pekka, Peiponen Kai-Erik. 2013. Evaluation of the complex refractive index of TiO2 nanoparticles in terahertz range without the information of sample thickness, 6th Finnish-Russian Photonics and Laser Symposium PALS'2013 Proceedings. 18. 2013

Terahertz Spectroscopy and Imaging. Peiponen Kai-Erik, Zeitler Axel, Kuwata-Gonokami Makoto. 2013 2013

Savenkov S, Priezzhev A, Oberemok Y, Kolomiets I, Silfsten P, Pääkkönen P, Tag CM, Gane P. A. C, Peiponen K-E. 2013. Visible polarimetry of prints, 6th Finnish-Russian Photonics and Laser Symposium PALS'2013 Proceedings. 63. 2013

Bawuah Prince, Silfsten Pertti, Tåg Carl-Mikael, Gane Patrik A. C.,Peiponen Kai-Erik. 2013. Far infrared absorption spectra for the quantitative differentiation of calcium carbonate crystal structures: exemplified in mixtures and in paper coatings, The Tenth Japan-Finland Joint Symposium on Optics in Engineering, Technical Digest. 47-48. 2013

Peiponen Kai-Erik, Vartiainen Erik M, Unuma Takeya, Zeitler J. Axel, Silfsten Pertti, Venäläinen Tapani, Kishida Hideo. 2013. Dispersion relations for evaluating the complex refractive index of medium without the information of its thickness. Applied Physics Letters 102: 18110-5. 2013

Niskanen I, Räty J, Peiponen K-E. 2013. Determination of the refractive index of microparticles by utilizing light dispersion properties of the particle and an immersion liquid. TALANTA 115: 68-73. 2013

Hirvonen Tapani, Penttinen Niko, Hauta-Kasari Markku, Sorjonen Mika ja Peiponen Kai-Erik. 2013. A Wide Spectral Range Reflectance and Luminescence Imaging System. Sensors 13 11: 14500-14510. 2013

Bawuah Prince, Silfsten Pertti, Sarkar Anjana, Kordas Krisztian, Mikkola Jyri-Pekka, Peiponen Kai-Erik. 2013. On the complex refractive index of N-doped TiO2 nanospheres and nanowires in the terahertz spectral region. VIBRATIONAL SPECTROSCOPY 68: 241-245. 2013

Peiponen K-E, Silfsten P, Pajander J, Ketolainen J. 2013. Broadening of a THz pulse as a measure of the porosity of pharmaceutical tablets. INTERNATIONAL JOURNAL OF PHARMACEUTICS 447: 7-11. 2013

Saarinen Jarkko J, Uozumi Jun, Vartiainen Erik M, Peiponen Kai-Erik. 2012. Phase retrieval of reflectance for nanoparticle optical identification OPTICS LETTERS 37 12: 2202-2204. 2012

Silfsten P, Dutta R, Pääkkönen P, Tåg C-M, Gane P A C, Peiponen K-E. 2012. Surface roughness and gloss study of prints: application of specular reflection at near infrared. MEASUREMENT SCIENCE AND TECHNOLOGY 23: 125202-1 -8. 2012

Savenkov S, Piezzhev A, Oberemok Ye, Silfsten P, Ervasti T, Ketolainen J, Peiponen K-E. 2012. Characterization of porous media by means of the depolarization metrics JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 113: 2503-2511. 2012

Saarinen JJ, Uozumi J, Vartiainen EM, Peiponen K-E. 2012. Optical sensor for nanoparticle identification in liquids. Teoksessa: - (toim.), Proceedings of AICHE 2012 Annual Meeting. ss. -. 2012

Räty Jukka, Pääkkönen Pertti, Peiponen Kai-Erik. 2012. Assessment of wavelength dependent complex refractive index of strongly light absorbing liquids OPTICS EXPRESS: THE INTERNATIONAL ELECTRONIC JOURNAL OF OPTICS 20 3: 2835 - 2843. 2012

Niskanen Ilpo, Räty Jukka, Myllylä Risto, Sutinen Veijo, Matsuda Kiyofumi, Homma Kazuhiro, Silfsten Pertti, Peiponen Kai-Erik. 2012. Roughened Glass Slides and a Spectrophotometer for the Detection of the Wavelength-Dependent Refractive Index of Transparent Liquids APPLIED SPECTROSCOPY 66 7: 786 - 790. 2012

Niskanen Ilpo, Heikkinen Jorma, Mikkonen Jukka, Harju Anni, Herajärvi Henrik, Venäläinen Martti, Peiponen Kai-Erik. 2012. Detection of the effective refractive index of thermally modified Scots pine by immersion liquid method Journal of Wood Science 58 1: 46-50. 2012

Gane Patrick, Silfsten Pertti, Tåg Carl-Mikael, Pääkkönen Pertti, Hiltunen Jouni, Kuivalainen Kalle, Oksman Antti, Peiponen Kai-Erik. 2012. Isolating contributions to gloss from surface mechanical and optical roughness, thin layer refractive index and wavelength filtering as a function of illumination and geometry of incidence Journal of Print and Media Technology Research 2: 81 - 95. 2012

Ervasti Tuomas, Silfsten Pertti, Ketolainen Jarkko, Peiponen Kai-Erik. 2012. A study on the resolution of a terahertz spectrometer for the assessment of the porosity of pharmaceutical tablets APPLIED SPECTROSCOPY 66 3: 319-323. 2012

Räty Jukka, Niskanen Ilpo, Myllylä Risto, Peiponen Kai-Erik. 2011. Light Transmission Model for Determination of the Refractive Index of Solid Particles in Suspensions: An Immersion Study APPLIED SPECTROSCOPY 65 5: 557-560. 2011

UnumaTakeya, Ino Yusuke, Peiponen Kai-Erik, Vartiainen Erik M., Kuwata-Gonokami Makoto, Hirakawa Kazuhiko. 2011. Causality-based method for determining the time origin in terahertz emission spectroscopy. OPTICS EXPRESS: THE INTERNATIONAL ELECTRONIC JOURNAL OF OPTICS 19 13: 12759-12765. 2011

Silfsten Pertti, Kontturi Ville, Ervasti Tuomas, Ketolainen Jarkko, Peiponen Kai-Erik. 2011. Kramers-Kronig analysis on the real refractive index of porous media in the terahertz spectral range. OPTICS LETTERS 36 5: 778-780. 2011

Savenkov S, Priezzhev A, Oberemok Ye, Silfsten P, Ervasti T, Ketolainen J, Peiponen K-E. 2011. Mueller polarimetry of porous media. Teoksessa: (toim.), 5th Finnish-Russian Photonics and Laser Symposium PALS'2011 Technical Digest. ss. 47-48. 2011

Saarinen J, Vartiainen E, Peiponen K-E. 2011. Nanoparticle identification from a liquid matrix using the maximum entropy method for SPR reflectance, Optical Sensors, OSA Technical Digest (CD). -. 2011

Saarinen J, Vartiainen E, Peiponen K-E. 2011. Surface plasmon resonance- applications in nanoparticle detection from a liquid matrix using the maximum entropy method: Kristina N. Helsey, Plasmons: Theory and Applications. 247-265. 2011

Räty J, Niskanen I, Peiponen K-E. 2011. Liquid immersion method; refractive index of solid particles. Teoksessa: (toim.), 5th Finnish-Russian Photonics and Laser Symposium PALS'2011 Technical Digest. ss. 51-52. 2011

Oksman Antti, Kuivalainen Kalle, Tåg Carl-Mikael, Juuti Mikko, Mattila Rauno, Hietala Eero, Gane Patrick, Peiponen Kai-Erik. 2011. Diffractive optical element-based glossmeter for the on-line measurement of normal reflectance on a printed porous coated paper. Optical Engineering 50 4: 043606-1 - 043606-9. 2011

Kontturi Ville, Silfsten Pertti, Räty Jukka, Peiponen Kai-Erik. 2011. On Optical Properties of Dilute Colloidal Gold. Plasmonics 6 2: 345-349. 2011

Kontturi Ville, Silfsten Pertti, Peiponen Kai-Erik. 2011. Finite Frequency f-sum Rule for Assessment of Number Density of Gold Nanoparticles (AuNPs) and Kramers-Kronig Relation for Refractive Index of Colloidal Gold APPLIED SPECTROSCOPY 65 7: 746-749. 2011

Kontturi V, Hyvärinen S, Garcia A, Carmona R, Murzin D. Yu, Mikkola J.-P., Peiponen K.-E.. 2011. Simultaneous detection of the absorption spectrum and refractive index ratio with a spectrophotometer: monitoring contaminants in bioethanol. MEASUREMENT SCIENCE AND TECHNOLOGY 22: 055803 1-6. 2011

Heuer J, Niskanen I, Klein S, Peiponen K-E. 2011. Optical properties of suspensions of organic and inorganic red pigments APPLIED SPECTROSCOPY 65 10: 1181-1186. 2011

Tuononen H, Gornov E, Zeitler JA, Aaltonen J & Peiponen K-E. 2010. Using modified Kramers-Kronig relations to test transmission spectra of porous media in THz-TDS OPTICS LETTERS 35 5: 631-633. 2010

Tuononen H, Fukunaga K, Kuosmanen M, Ketolainen J & Peiponen K-E. 2010. Wiener bounds for complex permittivity in terahertz spectroscopy: case study of two-phase pharmaceutical tablets. APPLIED SPECTROSCOPY 64 1: 127-131. 2010

Takeya Unuma, Yusuke Ino, Makoto Kuwata-Gonokami, Erik M. Vartiainen, Kai-Erik Peiponen, and Kazuhiko Hirakawa. 2010. Determination of the time origin by  the maximum entropy method in  time-domain terahertz emission spectroscopy OPTICS EXPRESS: THE INTERNATIONAL ELECTRONIC JOURNAL OF OPTICS 18 15: 15853-15858. 2010

Kuivalainen Kalle, Oksman Antti, Kai-Erik Peiponen. 2010. Advanced glossmeters for product testing. Teoksessa: (toim.), Optics Day proceedings 6-7 May 2010 Tampere University of Technology, Tampere. ss. 91. 2010

Kuivalainen Kalle, Oksman Antti, Juuti Mikko, Myller Kari ja Kai-Erik Peiponen. 2010. Advanced Glossmeters for Industrial Applications. OPTICAL REVIEW 17 3: 248¿251. 2010

Kuivalainen Kalle, Oksman Antti ja Kai-Erik Peiponen. 2010. Definition and measurement of statistical gloss parameters from curved objects. APPLIED OPTICS 49 27: 5081-5086. 2010

K.- E. Peiponen, J. Räty, and I. Niskanen. 2010. Measurement of the refractive index of highly turbid media: comment. OPTICS LETTERS 35 24: 4108-4108. 2010

J. Räty, I. Niskanen, and K.-E. Peiponen. 2010. Fresnel reflectance in refractive index estimation of light scattering solid particles in immersion liquid. Applied Physics Letters 96: 231112-1 - 3. 2010

Ilpo Niskanen, Kai-Erik Peiponen, and Jukka Räty. 2010. Assessment of Refractive Index of Pigments by Gaussian Fitting of Light Backscattering Data in Context of the Liquid Immersion Method. APPLIED SPECTROSCOPY 64 5: 558-561. 2010

Ilpo Niskanen, Jukka Räty, and Kai-Erik Peiponen. 2010. Optical sensing of concentration and refractive index of pigments in a suspension. APPLIED OPTICS 49 17: 3428-3433. 2010

Ilpo Niskanen, Jukka Räty and Kai-Erik Peiponen. 2010. A method for the detection of the refractive index of irregular shape solid pigments in light absorbing liquid matrix. TALANTA 81 4-5: 1322-1324. 2010

Fukunaga Kaori. 2010. Terahertz spectroscopy applied to the analysis of artists' materials. Applied Physics A: Materials Science & Processing 100 3: 591-597. 2010

Optical Measurement Techniques. Kai-Erik Peiponen, Risto Myllylä, Alexander V. Priezzhev. 2009 2009

Niskanen I., Mutanen J., Lehtonen P., Räty J., Peiponen K-E and Jääskeläinen T. 2009. Optical sensor for inspection of color, turbidity and refractive index spectra of red wine, Proceedings of OIV, the 7th General Assembly of the International Organisation of Vine and Wine Conference. Zagreb, Croatia, June 28 - July 3. -. 2009

Mikko Juuti, Kimmo Koivunen, Martti Silvennoinen, Hannu Paulapuro and Kai-Erik Peiponen. 2009. Light scattering study from nanoparticle-coated pigments of paper. Colloids and Surfaces A: Physicochemical and Engineering Aspects 352 1-3: 94-98. 2009

Mikko Juuti, Heikki Tuononen, Antti Penttilä, Kari Myller, Kari Lumme and Kai-Erik Peipponen. 2009. Spectral properties and surface uniformity of black glass gloss references. Optical Engineering 48 3: 033603-1 -5. 2009

Kontturi V, Turunen P, Uozumi J, Peiponen KE. 2009. Robust sensor for turbidity measurement from light scattering and absorbing liquids. Optics Letters 34 23: 3743-3745. 2009

Koivula Hanna, Juuti Mikko, Bousfield Douglas, Preston Janet, Silvennoinen Raimo, Peiponen Kai-Erik and Toivakka Martti. 2009. Comparison of dynamic print gloss measurement techniques. Tappi Journal -: 19-28. 2009

Kimmo Koivunen, Ilpo Niskanen, Kai-Erik Peiponen and Hannu Paulapuro. 2009. Novel nanostructured PCC fillers. Journal of Materials Science 44 2: 477-482. 2009

Kalle Kuivalainen, Kai-Erik Peiponen and Kari Myller. 2009. Application of a diffractive element-based sensor for detection of latent fingerprints from a curved smooth surface. Measurement Science and Technology 20: 077002-1 -3. 2009

Kalle Kuivalainen, Antti Oksman, Mikko Juuti, Kari Myller and K-E Peiponen. 2009. Modern glossmeters. Teoksessa: Y. Ishii, T. Yatagai, J. Uozumi and K-E Peiponen (toim.), Technical Digest of the Eighth Japan-Finland Joint Symposium on Optics in Engineering OIE¿09. Tokyo, Japan, Sept. 3 - 5. ss. 7-8. 2009

K. Matsuda, S. Rehman, H. Oohashi, I. Niskanen, M. Yamauchi, T. Nakatani, K. Homma and K. Peiponen. 2009. Digital Holographic Microscopy Using a Single Mode Fiber: Y. Ishii, T. Yatagai, J. Uozumi and K-E Peiponen, Technical Digest of the Eighth Japan-Finland Joint Symposium on Optics in Engineering. Tokyo, Japan, Sept. 3 - 5. 17-18. 2009

K-E Peiponen and J J Saarinen. 2009. Generalized Kramers¿Kronig relations in nonlinear optical- and THz-spectroscopy. Reports on Progress in Physics 72 5: 056401-1 -19. 2009

Juuti M, Tuononen H, Prykari T, Kontturi V, Kuosmanen M, Alarousu E, Ketolainen J, Myllyla R, Peiponen KE. 2009. Optical and terahertz measurement techniques for flat-faced pharmaceutical tablets: a case study of gloss, surface roughness and bulk properties of starch acetate tablets. Measurement Science & Technology 20 1: Article Number: 015301. 2009

Jarkko Mutanen, Ilpo Niskanen, Pekka Lehtonen, Jukka Räty, Kai-Erik Peiponen and Timo Jääskeläinen. 2009. Color analysis of multifunction spectrometer for optical inspection of red wine. Teoksessa: Y. Ishii, T. Yatagai, J. Uozumi and K-E Peiponen (toim.), Technical Digest of the Eighth Japan-Finland Joint Symposium on Optics OIE¿09. Tokyo, Japan, Sept. 3 - 5. ss. 125-126. 2009

Jarkko J. Saarinen, Erik M. Vartiainen, Kai-Erik Peiponen. 2009. Surface plasmon resonance reflectance from nanoparticles in a liquid matrix: Retrieval of the optical properties using the maximum entropy model. Sensors and Actuators B: Chemical 138 1: 383-395. 2009

Ilpo Niskanen, Jukka Räty and Kai-Erik Peiponen. 2009. Measurement of refractive index and concentration of pigments by using immersion method: Y. Ishii, T. Yatagai, J. Uozumi and K-E Peiponen, Technical Digest of the Eighth Japan-Finland Joint Symposium on Optics in Engineering OIE¿09. Tokyo, Japan, Sept. 3 - 5. 49-50. 2009

Kai-Erik Peiponen. 2009. Dispersion theory and sum rules for the non-minimum phase problem in optical spectroscopy. Physica B: Condensed Matter 404 14-15: 2094-2096. 2009

Jarl B. Rosenholm;Kai-Erik Peiponen and Evgeny Gornov. 2008. Materials cohesion and interaction forces. Advances in Colloid and Interface Science 141 1-2: 48-65. 2008

Raimo Silvennoinen;Mikko Juuti;Hanna Koivula;Martti Toivakka and Kai-Erik Peiponen. 2008. Diffractive glossmeter for measurement of dynamic gloss of prints. TAGA Journal 4: 59-71. 2008

Niskanen, Ilpo; Mutanen, Jarkko; Lehtonen, Pekka; Räty, Jukka; Yamaguchi, Masahiro; Peiponen, Kai-Erik; Jaaskelainen, Timo. 2008. Multifunction spectrometer for optical inspection of red wine. Sensing and Instrumentation for Food Quality and Safety 2 1: 58-65. 2008

M. Juuti;H. Koivula;M. Toivakka and K.-E. Peiponen. 2008. A diffractive glossmeter for local gloss measurements of papers and prints. Tappi Journal 7 4: 27-32. 2008

K-E Peiponen;V Kontturi;I Niskanen;M Juuti;J Räty;H Koivula and M Toivakka. 2008. On estimation of complex refractive index and colour of dry black and cyan offset inks by a multi-function spectrophotometer. Measurement Science and Technology 19: 115601-115606. 2008

Ilpo Niskanen;Jukka Räty and Kai-Erik Peiponen. 2008. Estimation of effective refractive index of birefringent particles using a combination of the immersion liquid method and light scattering Applied Spectroscopy 62 4: 399-401. 2008

C.-M. Tåg;M. Juuti;K.-E. Peiponen and J.B. Rosenholm. 2008. Print mottling: Solidliquid adhesion related to optical appearance Colloids and Surfaces A: Physicochemical and Engineering Aspects 317 1-3: 658-665. 2008

Antti Oksman;Mikko Juuti;Kai-Erik Peiponen. 2008. Statistical parameters and analysis of local contrast gloss. Optics Express 16 16: 12415-12422. 2008

Antti Oksman;Mikko Juuti;Kai-Erik Peiponen. 2008. Sensor for the detection of local contrast gloss of products. Optics Letters 33 7: 654-656. 2008

Antti Oksman;Mikko Juuti;Kai-Erik Peiponen. 2008. Inspection of print quality using a visibility map obtained by a diffractive optical element based glossmeter, The 2nd International Topical Meeting on Optical Sensing and Artical Vision(Osav'08): Summaries. Saint Petersburg, Russia, May 12-15.Itmo State University. 37-38. 2008

Kai-Erik Peiponen and Evgeny Gornov. 2007. Fresnel drag of light by a moving nonlinear and nanostructured dielectric medium. Physical Review A 76: 064101-064103. 2007

Raimo Silvennoinen;Kai-Erik Peiponen and Kari Myller (toim.). 2007. Specular Gloss. Elsevier. 2007

Mikko Juuti;Valtteri Kalima;Tuula T Pakkanen and Kai-Erik Peiponen. 2007. A novel method to measure and analyse delta gloss by diffractive glossmeter Measurement Science and Technology 18 5: L5-L8. 2007

Mikko Juuti;Tuukka Prykäri;Erkki Alarousu;Hanna Koivula;Markko Myllys;Arto Lähteelä;Martti Toivakka;Jussi Timonen;Risto Myllylä;Kai-Erik Peiponen. 2007. Detection of local specular gloss and surface roughness from black prints. Colloids and Surfaces A: Physicochem. Eng. Aspects 299 1-3: 101-108. 2007

Mikko Juuti;Martti O.A. Mäkinen;Jouni Hiltunen and Kai-Erik Peiponen. 2007. Detection of gloss and colour mottling of prints: K.-E. Peiponen;R. Hernberg and T. Yatagai (eds.), Technical Digest of the Seventh Finnish-Japanese Joint Symposium on Optics in Engineering (OIE'07). Tampere, August 8 - 10. 91-92. 2007

M. Myllys;T. Turpeinen;M. Juuti;A. Lähteelä;T. Ylimäki;K.-E. Peiponen and J. Timonen. 2007. Dependence of optical properties of coated papers on its three-dimensional structure, Proceedings of Physics Days 2007. Tallinn, Estonia. March 15 - 17. 2007

M. Juuti;H. Koivula;M. Toivakka and K.-E. Peiponen. 2007. A diffractive glossmeter for local gloss measurements of papers and prints, Proceedings of TAPPI Coating and Graphics Arts Conference 2007. Miami, Florida, USA. April 22 - 25. 2007

M. Juuti and K.-E. Peiponen. 2007. Statistical gloss analysis and novel parameters for characterising gloss variation, Proceedings of Physics Days 2007. Tallinn, Estonia. March 15 - 17. 2007

M. Juuti and K.-E. Peiponen. 2007. Local gloss measurement of papers and prints, Proceedings of COST action E32, Abstract 6. Grenoble, France. Oct. 4 - 5. 2007

Kai-Erik Peiponen;Jarkko Mutanen;Jukka Räty;Ilpo Niskanen;Evgeny Gornov;Pekka Lehtonen and Timo Jaaskelainen. 2007. Optical inspection of red wine. Teoksessa: K.-E. Peiponen;R. Hernberg and T. Yatagai (eds.) (toim.), Technical Digest of the Seventh Finnish-Japanese Joint Symposium on Optics in Engineering. Tampere, August 8 - 10. ss. 97-98. 2007

H. Koivula;M. Juuti;D. Bousfield;J. Preston;R. Silvennoinen;K.-E. Peiponen;M. Toivakka. 2007. Comparison of dynamic print gloss measurement techniques, Proceedings of TAPPI Coating and Graphics Arts Conference 2007. Miami, Florida, USA. April 22 - 25. 2007

K.-E. Peiponen and E. Gornov. 2007. On prediction of optical properties of two- and multiphase nanocomposites for nanomedicine. International Journal of Nanomedicine 2 4. 2007

Juuti Mikko, Peiponen K-E, Obraztsov A N, Silvennoinen R, Myller K. 2007. A glossmeter for inspection of surface quality of low gloss nano-carbon surfaces. Optical Materials 29: 1719-1722. 2007

Jarkko Mutanen;Jukka Räty;Evgeny Gornov;Pekka Lehtonen;Kai-Erik Peiponen and Timo Jaaskelainen. 2007. Measurement of Color, Refractive Index, and Turbidity of Red Wines. American Journal of Enology and Viticulture 58 3: 387-392. 2007

Ilpo Niskanen;Jukka Räty;Kai-Erik Peiponen;Hanna Koivula;Martti Toivakka. 2007. Assessment of the complex refractive index of an optically very dense solid layer: Case study offset magenta ink. Chemical Physics Letters 442 4-6: 515-517. 2007

Ilpo Niskanen;Jukka Räty;Kai-Erik Peiponen. 2007. Measurement of refractive index of isotropic particles by incorporating a multifunction spectrophotometer and immersion liquid method. Applied Optics 46 22: 5404-5407. 2007

Ilpo Niskanen;Jukka Räty;Kai-Erik Peiponen. 2007. Complex refractive index of turbid liquids. Optics Letters 32 7: 862-864. 2007

Evgeny Gornov;Kai-Erik Peiponen. 2007. Dispersion relations for testing the validity of linear and nonlinear optical spectra. Applied Optics 46 24: 6081-6083. 2007

Antti Oksman;Mikko Juuti and Kai-Erik Peiponen. 2007. Visibility map for print quality assessment by means of a diffractive optical element based glossmeter. Measurement Science and Technology 18 7: 2185-2188. 2007

A. Oksman;R. Silvennoinen;and K.-E. Peiponen. 2007. An utilization of a diffractive optical element based machine vision system in local optical inspection of compressed paper. Teoksessa: Mikhail Kirilin;Alexey Popov;Matti Kinnunen (Eds.) (toim.), Book of Abstracts of the International Conference of Advanced Laser Technologies ALT' 07.Oulu University Press. ss. 150. 2007

A. Oksman;R. Silvennoinen and K.-E. Peiponen. 2007. Optical study of compressed paper, Technical digest of the Seventh Finnish-Japanese Joint Symposium on Optics in Engineering, 8-10 August, Tampere, Finland. 95-96. 2007

K.-E. Peiponen;E. Gornov. 2006. Description of Wiener bounds of multicomponent composites by barycentric coordinates. Optics Letters 31 14: 2202-2204. 2006

M. Juuti;B. van Veen;K.-E. Peiponen;J. Ketolainen;R. Silvennoinen. 2006. Analysis on the surface quality of pharmaceutical tablets using a diffractive optical element based glossmeter. European Journal of Pharmaceutical Sciencies 28: S16-S17. 2006

K.Myller;M. Juuti;R.Silvennoinen;E. Heikkinen and K.-E. Peiponen. 2006. Surface quality measurements of high gloss planar, convex and concave metal surfaces using diffractive optical element-based glossmeter: Martti Kauranen;Ari Laitinen;Jouko Nieminen and Tapio Rantala (eds), Proceedings of the XL Annual Conference of the Finnish Physical Society.Tampere University of technology. Institute of Physics. Report 2006:1. 293. 2006

K.-E. Peiponen;M. Juuti. 2006. Statistical parameters for gloss evaluation. Applied Physics Letters 88: 071104-1 - 071104-3. 2006

K.-E. Peiponen;E.M. Vartiainen. 2006. Dispersion theory of the reflectivity of s-polarized and p-polarized light. Journal of the Optical Society of America B 23 1: 114-119. 2006

M. Juuti;B. van Veen;K.-E. Peiponen;J. Ketolainen;V. Kalima;R. Silvennoinen and T.T. Pakkanen. 2006. Local and average gloss from flat-faced sodium chloride tablets. AAPS PharmSciTech 7 1: Article 7. 2006

K. Myller;M. Juuti;K.-E. Peiponen;R. Silvennoinen;E. Heikkinen. 2006. Quality inspection of metal surfaces by diffractive optical glossmeter Precision Engineering 30 4: 443-447. 2006

E. Gornov;K.-E. Peiponen. 2006. Some remarks on the calculation of the complex refractive index of medium in terahertz reflection spectroscopy. Physica Status Solidi B 244 7: 2619-2621. 2006

E. Gornov;E.M. Vartiainen;K.-E. Peiponen. 2006. Comparison of subtractive Kramers-Kronig analysis and maximum entropy model in resolving phase from finite spectral range reflectance data. Applied Optics 45 25: 6519-6524. 2006

K-E. Peiponen;E. Alarousu;M. Juuti;R. Silvennoinen;A. Oksman;R. Myllylä;T. Prykäri. 2006. Diffractive-optical-element-based glossmeter and low coherence interferometer in assessment of local surface quality of paper. Optical Engineering 45 4: 043601-1 - 043601-7. 2006

E. Gornov;K.-E. Peiponen;Y. Svirko;Y. Ino and M. Kuwata-Gonokami. 2006. Efficient dispersion relations for terahertz spectroscopy. Applied Physics Letters 89: 142903-1 - 142903-3. 2006

J.J. Saarinen;E.M. Vartiainen;K.-E. Peiponen. 2006. Retrieval of the effective complex refractive index of Bruggeman nanoliquids from surface plasmon resonance reflectance using the maximum entropy method. Journal of Modern Optics 53 8: 1047-1059. 2006

I. Niskanen;J. Räty and K.-E. Peiponen. 2006. A multifunction spectrophotometer for measurement of optical properties of transparent and turbid liquids Measurement Science and Technology 17: N87-N91. 2006

K.-E. Peiponen;M. Juuti and R. Silvennoinen. 2005. A glossmeter for detection of local gloss of paper products. Teoksessa: J. Uozumi;T. Yatagai and K.-E.Peiponen (toim.), Technical Digest of the Sixth Japan-Finland Joint Symposium on Optics in Engineering. ss. 9-10. 2005

V. Lucarini;Y. Ino;K.-E. Peiponen and M. Kuwata-Gonokami. 2005. Detection and correction of the misplacement error in terahertz spectroscopy by application of singly subtractive Kramers-Kronig relations Physical Review B 72: 1251071-1251076. 2005

R. Silvennoinen;K. Myller;K.-E. Peiponen and P. Silfsten. 2005. Quasistatic thermo-optical changes of acrylonitride-butadiene-styrene surface induced by laser beam. Optics and Lasers In Engineering 43 6: 682-685. 2005

M.Juuti;B. van Veen;K.-E. Peiponen;J. Ketolainen;R. Silvennoinen. 2005. Gloss from flat-faced sodium chloride tablets: Päivi Törmä;Jouko Korppi-Tommola;Viivi Lehtovuori, Optics Days-Optiikan päivät Proceedings 2005, Jyväskylä 12.5.2005-13.5.2005. 32. 2005

M. Juuti;K. -E. Peiponen;R. Silvennoinen;A. N. Obraztsov. 2005. Gloss inspection of nanocarbon surfaces, Proceedings of PALS 2005 2nd Photonics and Laser Symposium, Kajaani 23.2.2005-25.2.2005. 61. 2005

M. Juuti;B. van Veen;K. -E. Peiponen;J. Ketolainen;R. Silvennoinen. 2005. Optical and Digital Signal Processing in Inspection of Pharmaceutical Tablet Surfaces. Teoksessa: (toim.), Proceedings of the 2005 Finnish Signal Processing Symposium (FINSIG '05), Kuopio 25.8.2005. ss. 26 - 29. 2005

Kramers-Kronig Relations in Optical Materials Research. V. Lucarini;J. J. Saarinen;K.-E. Peiponen and E. M. Vartiainen. 2005 2005

K.-E. Peiponen. 2005. Multiply subtractive Kramers-Kronig relations for impedance function of concrete. Cement and Concrete Research 35: 1435-1437. 2005

K. Myller;R. Silvenoinen;K.-E. Peiponen;M. Juuti and E. Heikkinen. 2005. Korkeakiiltoisten metallipintojen kosketukseton kiiltomittaus. Metallitekniikka 5: 20-25. 2005

K. Myller;R. Silvennoinen;K.-E. Peiponen;J. Salmi and E. J. Pääkkönen. 2005. Diffraktiiviseen optiikkaan perustuva kiiltomittari ruiskuvaletun matkapuhelimen kuoren kiiltomittaukseen. Muovi-Plast 3: 16-17. 2005

E. M. Vartiainen;J. J. Saarinen;K.-E. Peiponen. 2005. Retrieval of the effective dielectric function of Bruggeman liquid using the maximum entropy method. Teoksessa: (toim.), Optics Days-Optiikan päivät Proceedings 2005, 12.5.2005-13.5.2005, Jyväskylä. ss. 67. 2005

E. M. Vartiainen;J. J. Saarinen and K.-E. Peiponen. 2005. Method for extracting the complex dielectric function of nanospheres in a water matrix from surface-plasmon-resonance data. Journal of the Optical Society of America B 22 6: 1173-1178. 2005

A. Oksman;R. Silvennoinen;K.E. Peiponen;M. Avikainen and H. Komulainen. 2005. A diffractive optical element based machine vision system for local optical inspection of compressed paper. Opto-Electronics Review 13 1: 39-42. 2005

K.-E. Peiponen;E. Gornov;Y. Svirko;Y. Ino;M. Kuwata-Gonokami and V. Lucarini. 2005. Testing the validity of terahertz reflection spectra by dispersion relations. Physical Review B 72: 2451091-2451095. 2005

K.E. Peiponen;V. Lucarini;E. M. Vartiainen;J. J. Saarinen. 2004. Kramers-Kronig relations and sum rules of negative refractive index media. The European Physical Journal B 41: 61-65. 2004

Yusuke Ino;Ryo Shimano;Makoto Kuwata-Gonokami;Erik M. Vartiainen;Yuri P. Svirko;Kai-Erik Peiponen. 2004. Maximum entropy method for misplacement phase error correction in terahertz time-domain reflection spectroscopy, 14th International Conference on Ultrafast Phenomena. ME4. 2004

Raimo Silvennoinen;Kari Myller;Kai-Erik Peiponen;Jaakko Salmi and Esko J. Pääkkönen. 2004. Diffractive optical sensor for gloss differences of injection molded plastic products. Sensors and Actuators A 112: 74-79. 2004

Raimo Silvennoinen ja Kai-Erik Peiponen. 2004. Menetelmä ja laite paperin optisten pintaominaisuuksien määrittämiseksi laser-optisella anturilla. Method och apparat för at mäta optisk kvalitet av pappersyta med hjäp av laser optisk sensor. FI 114119 B. 2004

Kai-Erik Peiponen;Valerio Lucarini;Jarkko J Saarinen;Erik M Vartiainen. 2004. Kramers-Kronig Relations and Sum Rules in Nonlinear Optical Spectroscopy. Applied Spectroscopy 58 5: 499-509. 2004

Kai-Erik Peiponen;Jarkko J Saarinen;Yuri Svirko. 2004. Derivation of General Dispersion Relations and Sum Rules for Meromorphic Nonlinear Optical Spectroscopy. Physical Review A 69: 043818-1-043818-6. 2004

K.-E. Peiponen;E. Alarousu;R. Silvennoinen;A. Oksman and R. Myllylä. 2004. Local gloss variation and surface roughness of paper detected by diffractive optical element based glossmeter and optical coherence tomography: Finnish Optical Society (FOS), Optics Days - Optiikan Päivät Proceedings 2004. 50. 2004

K. Myller;K.-E. Peiponen;R. Silvennoinen;J.-P. Tarvainen;J. Rainio;S. Soinila-Oksanen. 2004. Glossmeter for detection of gloss and wear of concave glazed ceramic products. Ceramic forum international 81 10: E39-E42. 2004

J. Räty;K.-E. Peiponen and T. Asakura (toim.). 2004. UV-visible Reflection Spectroscopy of Liquids. Springer. 2004

E.M. Vartiainen;Y. Ino;R. Shimano;M. Kuwata-Gonokami;Y. Svirko;K.-E. Peiponen. 2004. Numerical phase correction method for terahertz time-domain reflection spectroscopy. Journal of Applied Physics 96: 4171-4175. 2004

Antti Oksman;Raimo Silvennoinen;Kai-Erik Peiponen;Marko Avikainen and Hannu Komulainen. 2004. Reflectance study of compressed paper. Applied Spectroscopy 58 4: 481-485. 2004

K. Myller;R. Silvennoinen;K.-E. Peiponen;J.-P. Tarvainen;J. Rainio;S. Soinila-Oksanen. 2004. Kiiltomittari kaarevien pintojen kiiltomittaukseen. Teoksessa: (toim.), Julkaisusarja A - Tampereen teknillinen yliopisto, Porin yksikkö.Tampereen teknillinen yliopisto. ss. 231-235. 2004

K.-E. Peiponen;E. M. Vartiainen;J. J. Saarinen. 2003. Modified Kramers-Kronig relations and sum rules for meromorphic total refractive index. Physical Review A 68: 025802. 2003

V. Lucarini;J. J. Saarinen;K.-E. Peiponen. 2003. Multiply subtractive generalized Kramers-Kronig relations: Application on third harmonic generation susceptibility on polysilane. Journal of Chemical Physics 119: 11095-11098. 2003

V. LUcarini;F. Bassani;K.-E. Peiponen and J. J. Saarinen. 2003. Dispersion theory and sum rules in linear and nonlinear optics. Rivista del Nuovo Cimento 26 12: 1-129. 2003

Kari Myller;Raimo Silvennoinen;Kai-Erik Peiponen. 2003. Gloss inspection of metallic products by diffractive optical element based sensor. Opto-Electronics Review 11 1: 53-56. 2003

Kari Myller;Kai-Erik Peiponen and Raimo Silvennoinen. 2003. Two-dimensional map of gloss of plastics measured by diffractive element based glossmeter. Optical Engineering 42 11: 3194-3197. 2003

V. Lucarini and K.-E. Peiponen. 2003. Verification of generalized Kramers-Kronig relations and sum rules on experimental data of third harmonic generation susceptibility on polymer. Journal of Chemical Physics 119 1: 620-627. 2003

K. Myller;R. Silvennoinen and K-E. Peiponen. 2003. Inspection of gloss by a glossmeter based on a diffractive optical element, Fifth Finland-Japan Joint Symposium on ?Optics in Engineering ? OIE?03. 2003

J. J. Saarinen;K.-E. Peiponen;E. M. Vartiainen. 2003. Simulation on wavelength-dependent complex refractive index of liquids obtained by phase retrieval from reflectance dip due to surface plasmon resonance. Applied Spectroscopy 57: 288-292. 2003

J. J. Saarinen;E. M. Vartiainen;K.-E. Peiponen. 2003. Retrieval of the complex permittivity of spherical nanoparticles in a liquid host material from a spectral surface plasmon resonance measurement. Applied Physics Letters 83: 893-895. 2003

J. J. Saarinen;E. M. Vartiainen;K.-E. Peiponen. 2003. On tailoring of nonlinear spectral properties of nanocomposites having Maxwell Garnett or Bruggeman structure. Optical Review 10: 111-115. 2003

E.M. Vartiainen;Y. Ino;R. Shimano;Yu. P. Svirko;M. Guwata-Gonokami and K.-E. Peiponen. 2003. Retrieval of material parameters in terahertz time-domain reflection spectroscopy. Teoksessa: H. Kopola and Y. Yatagai (toim.), Fifth Finland-Japan joint symposium on Optics in Engineering, Technical digest.VTT. ss. 2003

J.J. Saarinen;E.M. Vartiainen and K.-E. Peiponen. 2003. Extraction of optical constants of spherical nanoparticles in a liquid host material from a spectral surface plasmon resonance measurement. Teoksessa: H. Kopola and Y. Yatagai (toim.), Fifth Finland-Japan joint symposium on Optics in Engineering, Technical Digest.VTT. ss. 2003

Jari Palviainen;Mika Sorjonen;Raimo Silvennoinen and Kai-Erik Peiponen. 2002. Optical sensing of colour print on paper by a diffractive optical element. Meas. Sci. Technol. 13: N31-N37. 2002

Raimo Silvennoinen;Kai-Erik Peiponen;Mika Sorjonen;Jouni Tornberg and Juha Sumén. 2001. Diffractive optical sensing of the surface quality of coated paper. Paper and Timber 83 5: 395-399. 2001

Ville Hyvärinen;Kai-Erik Peiponen;Raimo Silvennoinen;Pasi Raatikainen;Petteri Paronen and Tapani Niskanen. 2000. Optical Inspection of Punches: Flat Surfaces. Eur. J. Pharm. Biopharm. 49 1: 87-90. 2000

Ville Hyvärinen;Raimo Silvennoinen;Kai-Erik Peiponen and Tapani Niskanen. 2000. Diffractive optical element based sensor for surface quality inspection of concave punches Eur. J. Pharm. Biopharm. 49 2: 167-169. 2000

Ville Hyvärinen;Mika Sorjonen;Kai-Erik Peiponen;Raimo Silvennoinen;Tapani Niskanen and Juha Kalliokoski. 2000. On all-optical laser cleaning and inspection of contaminated concave metal surfaces. Optics and Lasers In Engineering 33 4: 311-315. 2000

M. Sorjonen;A. Jääskeläinen;K.-E. Peiponen and R. Silvennoinen. 2000. On the assessment of the surface quality of black print paper by use of a diffractive optical-element-based sensor Meas. Sci. Technol. 11: N85-N88. 2000

Raimo Silvennoinen;Ville Hyvärinen;Pasi Raatikainen and Kai-Erik Peiponen. 2000. Dynamic laser speckle pattern in monitoring of local deformation of tablet surface after compression. Int. J. Pharm. 199 2: 205-208. 2000

Optical inspection of surface quality of pharmaceutical compacts, In: Gert von Bally Series Editor, Series of the International Society on Optics Within Life Sciences, Volume V, In: Fotakis C., Papazoglou T.G. and Kalpouzos (Eds.), Optics and Lasers in Biomedicine and Culture, pp. 273-276. K.-E. Peiponen;R. Silvennoinen;V. Hyvärinen;P. Raatikainen;P. Paronen. 2000 2000

Anssi Jääskeläinen;Raimo Silvennoinen;Kai-Erik Peiponen and Jukka Räty. 2000. On measurement of complex refractive index of liquids by diffractive element-based sensor. Opt. Commun. 178: 53-57. 2000

R. Silvennoinen;K.-E. Peiponen and J. Räty. 1999. Detection of refractive index change of liquids by diffractive element based sensor Optical Review 6 1: 68-70. 1999

R. Silvennoinen;K.-E. Peiponen and T. Asakura (toim.). 1999. Diffractive optical elements in materials inspection: in Asakura T. (ed.) The International Trends in Optics and Photonics ICO IV , Part VI Optical Metrology (Optical Systems),pp.281-293. Springer-Verlag. The International Trends in Optics and Photonics ICO IV. 1999

Raimo Silvennoinen;Kai-Erik Peiponen;Ville Hyvärinen;Pasi Raatikainen and Petteri Paronen. 1999. Optical surface roughness study of starch acetate compacts. Int. J. Pharm. 182: 213-220,. 1999

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