Etusivu
Ihmiset
Tutkimusryhmät
Projektit
Tietoa

Kirjaudu

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Etusivu
Ihmiset
Tutkimusryhmät
Projektit
Tietoa

Sulje

Tarkenna hakuasi

Etusivu
Ihmiset
Pasi Vahimaa

Pasi Vahimaa

Professori

Teoreettisen optiikan professori

Fysiikan ja matematiikan laitos, Luonnontieteiden, metsätieteiden ja tekniikan tiedekunta

[email protected] | 050 400 1594

Tiedot Julkaisut

Fotoniikan professori, aiheina esimerkiksi diffraktiivinen optiikka ja optinen koherenssiteoria. Digitaalisten oppimisvälineiden avulla useilla kursseilla opettava. Virtuaalitodellisuuden, laajennetun todellisuuden ja sensoridatojen hyödyntäminen opetuksessa. Suuntana online-oppiminen ja sen mahdollistavat oppimisympäristöt. Kiinnostavimmat tutkimuskohteet tällä hetkellä oppimisen prosessien mittaaminen hyödyntäen uusinta teknologiaa. Pitäen koko ajan mielessä koneoppimisen ja tekoälyn valtavat mahdollisuudet oppimisen työkaluina.

Projektit

Mehtimäen hyvinvoinnin ja liikunnan testausasema - uutta liiketoimintaa, palveluita ja yrittäjyyttä 01.10.2023 - 31.12.2025
Mehtimäen hyvinvoinnin ja liikunnan testausasema – Investointi 01.10.2023 - 31.12.2025

Avainsanat

AR diffraktio DigiLearn flippaus fotoniikka koherenssi käänteinen opetus käänteinen oppiminen oppimisympäristöt optiikka valo virtuaalitodellisuus VR yhdistetty todellisuus

Julkaisut

130/130 kappaletta

Wellbeing at the 21st century innovative learning environment called learning ground
Saastamoinen, Ulla; Eronen, Lasse; Juvonen, Antti; Vahimaa, Pasi. 2022. Journal of research in innovative teaching & learning. [Epub ahead of 28 June 2022]: 1-14 A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Fotoniikasta valoa Suomen hyvinvointiin: Selvitys alan vaikuttavuudesta ja kasvunäkymistä
Aalto, Timo; Ailisto, Heikki; Antila, Jarkko; Eklin, Tero; Haapala, Antti; Herrala, Esko; Heräjärvi, Henrik; Hirvi, Timo; Hänninen, Pekka; Jokinen, Kimmo; Keinänen, Markku; Kola, Kari; Korppi-Tommola, Jouko; Kutila, Matti; Lappalainen, Reijo; Laurila, Toni; Luukanen, Arttu; Kauranen, Martti; Oksanen, Elina; Purmonen, Juha; Räisänen, Antti; Saarinen, Jyrki; Salmelin, Eero; Salminen, Antti; Stenberg, Petri; Tokola, Timo; Turtiainen, Heikki; Uusimaa, Petteri; Vahimaa, Pasi; Vastaranta, Mikko; Visa. 2019. Eduskunnan tulevaisuusvaliokunnan julkaisu
Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
Kaplas Tommi, Matikainen Antti, Nuutinen Tarmo, Suvanto Sari, Vahimaa Pasi, Svirko Yuri. 2017. Scientific reports
Atmospheric oxidation and carbon contamination of silver and its effect on surface-enhanced Raman spectroscopy (SERS)
Matikainen Antti, Nuutinen Tarmo, Itkonen Tommi, Heinilehto Santtu, Puustinen Jarkko, Hiltunen Jussi, Lappalainen Jyrki, Karioja Pentti, Vahimaa Pasi. 2016. Scientific reports
Highly active surface-enhanced Raman scattering (SERS) substrates based on gold nanoparticles infiltrated into SiO2 inverse opals
Ankudze Bright, Philip Anish, Pakkanen Tuula T, Matikainen Antti, Vahimaa Pasi. 2016. Applied surface science
A solution to the fabrication and tarnishing problems of surface-enhanced Raman spectroscopy (SERS) fiber probes
Matikainen Antti, Nuutinen Tarmo, Vahimaa Pasi, Honkanen Seppo. 2015. Scientific reports
High Aspect-Ratio Iridium-Coated Nanopillars for Highly Reproducible Surface-Enhanced Raman Scattering (SERS)
Kang Guoguo, Matikainen Antti, Stenberg Petri, Färm Elina, Li Peng, Ritala Mikko, Vahimaa Pasi, Honkanen Seppo, Tan Xiaodi. 2015. Acs applied materials and interfaces
Self-organized Polymer Wrinkles: A Lithography-free Pathway for Surface-enhanced Raman Scattering (SERS) Substrates
Stenberg Henna, Matikainen Antti, Daniel Salman, Nuutinen Tarmo, Stenberg Petri, Honkanen Seppo, Pakkanen Tuula, Vahimaa Pasi, Suvanto Mika. 2015. Macromolecular materials and engineering
Daylight Colored Optimal Spectra for Improved Color Discrimination
Flinkman M, Laamanen H, Silfsten P, Hauta-Kasari M, Vahimaa P. 2014. Lecture notes in computer science
Femtosecond laser processing and spatial light modulator
Päiväsaari Kimmo, Silvennoinen Martti, Kaakkunen Jarno, Vahimaa Pasi. 2014. SPIE
Parallel femtosecond laser ablation with individually controlled intensity
Silvennoinen Martti, Kaakkunen Jarno, Paivasaari Kimmo, Vahimaa Pasi. 2014. Optics express
Polymer and composite polymer slot waveguides
Hiltunen Marianne, Fegadolli William S, Lira Hugo L R, Vahimaa Pasi, Hiltunen Jussi, Aikoi Sanna, Almeida Vilson R, Karioja Pentti. 2014. Proceedings of SPIE : the International Society for Optical Engineering
Polymeric slot waveguide interferometer for sensor applications
Hiltunen Marianne, Hiltunen Jussi, Stenberg Petri, Aikio Sanna, Kurki Lauri, Vahimaa Pasi, Karioja Pentti. 2014. Optics express
Uniform distribution of Ag particles upon imprinted polymer grating for Raman signal enhancement
Daniel Salman, Matikainen Antti, Turunen Jari, Vahimaa Pasi, Nuutinen Tarmo. 2014. Journal of colloid and interface science
Efficient speckle-free laser marking using a spatial light modulator
Wlodarczyk Krystian L., Kaakkunen Jarno J.J., Vahimaa Pasi, Hand Duncan P.. 2013. Applied physics a-materials science and processing
Eigenvectors of optimal color spectra
Flinkman M, Laamanen H, Tuomela J, Vahimaa P, Hauta-Kasari M. 2013. Journal of the optical society of america a: optics image science and vision
Horizontal slot waveguide channel for enhanced Raman scattering
Rahomäki Jussi, Nuutinen Tarmo, Karvonen Lasse, Honkanen Seppo, Vahimaa Pasi. 2013. Optics express
Parallel Femtosecond Laser Processing using Intensity Modulated Diffraction Pattern Produced with Spatial Light Modulator
Kaakkunen J.J.J, Silvennoinen M, Päiväsaari K, Laakso P, Vahimaa P. 2013.
Parallel microstructuring using femtosecond laser and spatial light modulator
Silvennoinen M, Kaakkunen J, Päiväsaari K, Vahimaa P. 2013. Physics procedia
Resonant waveguide grating (RWG): overcoming the problem of angular sensitivity by conical, broad-band illumination for fluorescence measurements
Nuutinen Tarmo, Karvinen Petri, Rahomäki Jussi, Vahimaa Pasi. 2013. Analytical methods
Spatial coherence measurement of polychromatic light with modified Young's interferometer
Saastamoinen Kimmo, Tervo Jani, Turunen Jari, Vahimaa Pasi, Friberg Ari T.. 2013. Optics express
Water spray assisted ultrashort laser pulse ablation
Silvennoinen Martti, Kaakkunen Jarno, Päiväsaari Kimmo, Vahimaa Pasi. 2013. Applied surface science
Changes in collagen cross-linking of articular cartilage are revealed by spectral reflectance imaging
Kinnunen Jussi, Kokkonen Harri T, Kovanen Vuokko, Hauta-Kasari Markku, Vahimaa Pasi, Jurvelin Jukka. 2012.
Control of cultured human cells with femtosecond laser ablated patterns on steel and plastic surfaces
Nuutinen Tarmo, Silvennoinen Martti, Päiväsaari Kimmo, Vahimaa Pasi. 2012. Biomedical microdevices
Femtosecond laser pulse ablation with two-dimensional two-grating interferometer
Kaakkunen Jarno, Silvennoinen Martti, Paivasaari Kimmo, Vahimaa Pasi. 2012.
Nondestructive fluorescence-based quantification of threose-induced collagen cross-linking in bovine articular cartilage
Kinnunen Jussi, Kokkonen Harri T, Kovanen Vuokko, Hauta-Kasari Markku, Vahimaa Pasi, Lammi Mikko J, Töyräs Juha, Jurvelin Jukka S. 2012. Journal of biomedical optics
Number of colors generated by smooth nonfluorescent reflectance spectra
Flinkman M, Laamanen H, Vahimaa P, Hauta-Kasari M. 2012. Journal of the optical society of america a: optics image science and vision
Optical Properties of Rhodium 2,2'-Biimidazole Carbonyl Complex
Chandra Balu, Laurila Elina, Lajunen Hanna, Turunen Jari, Vahimaa Pasi, Haukka Matti. 2012.
Polymeric slot waveguide at visible wavelength
Hiltunen M, Hiltunen J, Stenberg P, Petäjä J, Heinonen E, Vahimaa P, Karioja P. 2012. Optics letters
Resonant waveguide grating (RWG): overcoming the problem of angular 1 sensitivity by conical, broad-band illumination for fluorescence measurements
Nuutinen Tarmo, Karvinen Petri, Rahomäki Jussi, Vahimaa Pasi. 2012. Analytical methods
Imprinting the nanostructures on the high refractive index semiconductor glass
Silvennoinen M, Päiväsaari K, Kaakkunen J, Tikhomirov V K, Lehmuskero A, Vahimaa P, Moshchalkov V V. 2011. Applied surface science
Linear birefringence magnitude of artificial self-assembled DNA crystals
Lehmuskero Anni, Hakulinen Nina, Lajunen Hanna, Zheng Jianping, Sha Ruojie, Bai Benfeng, Huang Lingling, Turunen Jari, Vahimaa Pasi, Seeman Nadrian C.. 2011. Optical materials express
Optical spectral reflectance of human articular cartilage - relationships with tissue structure, composition and mechanical properties
Kinnunen Jussi, Saarakkala Simo, Hauta-Kasari Markku, Vahimaa Pasi, Jurvelin Jukka. 2011. Biomedical optics express
Water-Assisted Femtosecond Laser Pulse Ablation of High Aspect Ratio Holes
Kaakkunen Jarno, Silvennoinen Martti, Päiväsaari Kimmo, Vahimaa Pasi. 2011. Physics procedia
Controlling the hydrophobic properties of material surface using femtosecond ablation
Martti Silvennoinen, Jarno Kaakkunen, Kimmo Päiväsaari, Pasi Vahimaa and Timo Jääskeläinen. 2010. Journal of laser micro nanoengineering
Distinguishing between deterministic and stochastic pulse broadening
Minna Surakka, Ari T. Friberg, Jari Turunen, and Pasi Vahimaa. 2010. Optics letters
Giant enhancement of second-harmonic generation in multiple diffraction orders from sub-wavelength resonant waveguide grating
A. Saari, G. Genty, M. Siltanen, P. Karvinen, P. Vahimaa, M. Kuittinen, and M. Kauranen. 2010. Optics express
Shifted-elementary-mode representation for partially coherent vectorial fields
J. Tervo, J. Turunen, P. Vahimaa, and F. Wyrowski. 2010. Journal of the optical society of america a: optics image science and vision
Fluorescence signal enhancement with single excitation enhancing and emission directing resonant waveguide structure
P. Karvinen, T. Nuutinen, J. Rahomäki, O. Hyvärinen and P. Vahimaa. 2009.
Spectrally partially coherent propagation-invariant fields
Saastamoinen K, Turunen J, Vahimaa P, Friberg AT. 2009. Physical review A : Atomic, molecular, and optical physics
Strong fluorescence-signal gain with single-excitation-enhancing and emission-directing nanostructured diffraction grating
Petri Karvinen, Tarmo Nuutinen, Jussi Rahomäki, Outi Hyvärinen, and Pasi Vahimaa. 2009. Optics letters
Wire-grid polarizers in the volume plasmon region
Lehmuskero, Anni ja Bai, Benfeng ja Vahimaa, Pasi ja Kuittinen, Markku. 2009. Optics express
Abnormal behavior of wire grid gratings
A. Lehmuskero, P. Vahimaa, and M. Kuittinen. 2008.
Analysis of interferograms from a diffractive-lens-based common-path interferometer
Ismo Vartiainen, Pasi Vahimaa and Markku Kuittinen. 2008. Applied Optics
Behavioral changes in wire grid gratings
Anni Lehmuskero, Markku Kuittinen, Pasi Vahimaa. 2008.
Design and Analysis of Compact Spectrometer for Illumination Recognition
Noora Heikkilä;Toni Saastamoinen;Pasi Vahimaa;and Markku Kuittinen. 2008. Japanese Journal of Applied Physics
Dielectric subwavelength resonant waveguide grating enhancing laser-induced fluorescence
P. Karvinen;T. Nuutinen;O. Hyvärinen and P. Vahimaa. 2008.
Enhancement of laser-induced fluorescence at 473 nm excitation with subwavelength resonant waveguide gratings
Petri Karvinen;Tarmo Nuutinen;Outi Hyvärinen;and Pasi Vahimaa. 2008. Optics express
Independent-elementary-field model for three-dimensional spatially partially coherent sources
Jari Turunen and Pasi Vahimaa. 2008. Optics express
Strong Enhancement of Local Fields and Second-Harmonic Generation in a Resonant Waveguide Grating
Mikael Siltanen;Samuli Leivo;Pauliina Armholt;Martti Kauranen;Petri Karvinen;Pasi Vahimaa;and Markku Kuittinen. 2008.
Time-dependent physical spectrum of Gaussian Schell-model pulses
K. Saastamoinen;J. Turunen and P. Vahimaa. 2008.
Unordinary properties of wire grid polarizers
Anni Lehmuskero, Markku Kuittinen, Pasi Vahimaa. 2008.
Common-path diffractive lens interferometer
Toni Saastamoinen;Henna Pietarinen;Anni Lehmuskero;Markku Kuittinen;Pasi Vahimaa. 2007.
Compact grating based interferometer for illumination recognition
Toni Saastamoinen;Noora Heikkilä;Markku Kuittinen;Pasi Vahimaa. 2007.
Compact spectrometer based on total internal reflection and diffractive grating
Toni Saastamoinen;Noora Heikkilä;Pasi Vahimaa and Markku Kuittinen. 2007.
Compact spectrometer for illumination recognition
T. Saastamoinen;N. Heikkilä;P. Vahimaa and M. Kuittinen. 2007.
Comparison of optical constants of thin Al and Ir films between deposition techniques and thicknesses
Anni Lehmuskero. 2007.
Dependence of optical properties of thin aluminium and iridium films on deposition technique and thickness
Anni Lehmuskero et al. 2007.
Dependence of refractive indexes and extinction coefficients of Al and Ir films on deposition technique and thickness
Anni Lehmuskero et al. 2007.
Enhancing second-harmonic generation by all-dielectric sub-wavelength resonant waveguide grating
P. Karvinen;M. Siltanen;S. Leivo;P. Voima;M. Kauranen;P. Vahimaa;M. Kuittinen. 2007.
Injection moulding integration of a red VCSEL illuminator module for a hologram reader sensor
Kimmo Keränen;Toni Saastamoinen;Jukka-Tapani Mäkinen;Mikko Silvennoinen;Ilpo Mustonen;Pasi Vahimaa;Timo Jääskeläinen;Ari Lehto;Anneli Ojapalo;Marcus Schorpp;Pekka Hoskio;and Pentti Karioja. 2007.
Inspection of micro injection molded lenses by means of common-path interferometer
Ismo Vartiainen;Henna Pietarinen;Markku Kuittinen and Pasi Vahimaa. 2007.
OPTICAL CONSTANTS DEPENDENCE OF THIN Al AND Ir FILMS ON FILM THICKNESS AND DEPOSITION TECHNIQUE
Anni Lehmuskero. 2007.
Refractive index and extinction coefficient dependence of thin Al and Ir films on deposition technique and thickness
Anni Lehmuskero;Markku Kuittinen and Pasi Vahimaa. 2007. Optics express
Strong enhancement of nonlinearity in resonant waveguide grating
Mikael Siltanen;Samuli Leivo;Pauliina Voima;Petri Karvinen;Pasi Vahimaa;Markku Kuittinen and Martti Kauranen. 2007.
Strong enhancement of second-harmonic generation in all-dielectric resonant waveguide grating
Mikael Siltanen;Samuli Leivo;Pauliina Voima;Martti Kauranen;Petri Karvinen;Pasi Vahimaa and Markku Kuittinen. 2007. Applied physics letters
Time-dependent physical spectra of Gaussian Schell-model pulses
Kimmo Saastamoinen;Jari Turunen;Pasi Vahimaa. 2007. Optics communications
Beaming light from a subwavelength slit in a corrugated environment
H. Hyvärinen;T. Saastamoinen;P. Vahimaa and J. Turunen. 2006.
Common-path diffractive lens interferometer
A. Lehmuskero;H. Elfström;T. Saastamoinen;M. Kuittinen and P. Vahimaa. 2006.
Common-path interferometer with diffractive lens
Henna Elfström;Anni Lehmuskero;Toni Saastamoinen;Markku Kuittinen;and Pasi Vahimaa. 2006. Optics express
Diffractive lens interferometer
A. Lehmuskero;H. Elfström;T. Saastamoinen;and P. Vahimaa. 2006.
Electromagnetic field computation in semiconductor laser resonators
Tuomas Vallius;Jani Tervo;Pasi Vahimaa;and Jari Turunen. 2006. Journal of the optical society of america a: optics image science and vision
Electromagnetic modal approach to analyzing microcavities
T. Vallius;J. Tervo;P. Vahimaa;J. Turunen. 2006.
Enhancing light-matter interaction by sub-wavelength resonance gratings
P. Karvinen;H. Immonen;H.J. Hyvärinen;P. Vahimaa;M. Kuittinen and M. Kauranen. 2006.
Finite-elementary-source model for partially coherent radiation
P. Vahimaa and J. Turunen. 2006. Optics express
Highly directional light transmission from a subwavelength slit in metallic screen surrounded by dielectric grating
H.J. Hyvärinen;T. Saastamoinen;P. Vahimaa and J. Turunen. 2006.
Independent-elementary-pulse representation for non-stationary fields
P. Vahimaa;J. Turunen. 2006. Optics express
Propagation of spatially partially coherent emission from a vertical-cavity surface-emitting laser
M. Peeters;G. Verschaffelt;J. Speybrouck;H. Thienpont;J. Danckaert;J. Turunen;P. Vahimaa. 2006. Optics letters
Replicated data-matrix array generators
P. Pelli;H. Elfström;K. Jefimovs;J. Aikio;M. Karppinen;P. Vahimaa;M. Kuittinen. 2006. Optics communications
Waveguide resonance gratings for ultra-short NIR-pulses
H. Immonen;P. Karvinen;P. Vahimaa;M. Kuittinen and M. Kauranen. 2006.
White LED light coupling into light guides with diffraction gratings
Samuli Siitonen;Pasi Laakkonen;Pasi Vahimaa;Markku Kuittinen;and Noora Tossavainen. 2006. Applied Optics
Analysis of laser resonator with grating theory
T. Vallius;J. Tervo;P. Vahimaa;J. Turunen. 2005.
Comparison between the variable dose control and the four level mask technology
H. Elfström;P. Pelli;K. Jefimovs;J. Aikio;M. Karppinen;P. Vahimaa;M. Kuittinen. 2005.
Coupling of partially coherent light into planar waveguides
T. Saastamoinen;M. Kuittinen;P. Vahimaa;J. Turunen;and J. Tervo. 2005. IEEE
Coupling of partially coherent light into planar waveguides
T. Saastamoinen;M. Kuittinen;P. Vahimaa;J. Turunen;and J Tervo. 2005.
Electromagnetic approach to laser resonator analysis
T. Vallius;J. Tervo;P. Vahimaa;and J. Turunen. 2005. Optics express
Focusing of partially coherent light into planar waveguides
T. Saastamoinen;M. Kuittinen;P. Vahimaa;J. Turunen and J. Tervo. 2005.
Optical activity in chiral gold nanogratings
K. Jefimovs;N. Saito;Yu. Ino;T. Vallius;P. Vahimaa;J. Turunen;R. Shimano;M. Kauranen;Yu. Svirko;and M. Kuwata-Gonokami. 2005. Microelectronic engineering
Partial spectral coherence of pulses
H. Lajunen;J. Tervo;P. Vahimaa;and J. Turunen. 2005. Suomen Optiikan Seura
Propagation of spatially partially coherent vertical-cavity surface emitting laser emission
M. Peeters;G. Verschaffelt;J. Speybrouck;J. Danckaert;H. Thienpont;P. Vahimaa;J. Turunen. 2005.
Resonator analysis with rigorous diffraction theory
Tuomas Vallius;Jani Tervo;Pasi Vahimaa;and Jari Turunen. 2005.
Spectrally partially coherent pulse trains in dispersive media
H. Lajunen;J. Turunen;P. Vahimaa;J. Tervo;and F. Wyrowski. 2005. Optics communications
Theory of spatially and spectrally partially coherent pulses
H. Lajunen;P. Vahimaa;and J. Tervo. 2005. Journal of the optical society of america a: optics image science and vision
To be or not to be continuous
H. Elfström;P. Pelli;K. Jefimovs;J. Aikio;M. Karppinen;P. Vahimaa;M. Kuittinen. 2005.
To be or not to be continuous
H. Elfström;P. Pelli;J. Aikio;M. Karppinen;P. Vahimaa;M. Kuittinen. 2005.
White LED Light Incoupling Using Different Refractive Index Radial Gratings
S. Siitonen;P. Laakkonen;P. Vahimaa;N. Tossavainen and M. Kuittinen. 2005. The Microoptics Group, The Optical Society of Japan, The Japan Society of Applied Physics
Coupling of light from an LED into a thin light guide by diffractive gratings
S. Siitonen;P. Laakkonen;P. Vahimaa;K. Jefimovs;M. Kuittinen;M. Parikka;K. Mönkkönen and A. Orpana. 2004. Applied Optics
Diffractive LED coupler for lightguide applications
S. Siitonen;P. Laakkonen;P. Vahimaa;M. Kuittinen;M. Parikka and K. Mönkkönen. 2004.
Electromagnetic approach to the thin element approximation
Tuomas Vallius;Pasi Vahimaa;and Marko Honkanen. 2004. Journal of modern optics
Exact self-imaging of transversely periodic fields
T. Saastamoinen;J. Tervo;P. Vahimaa;and J. Turunen. 2004. Journal of the optical society of america a: optics image science and vision
Focusing of partially coherent light into planar waveguides
T. Saastamoinen;M. Kuittinen;P. Vahimaa;J. Turunen;and J. Tervo. 2004. Optics express
Inductive grid filters for rejection of infrared radiation
Konstantins Jefimovs;Tuomas Vallius;Ville Kettunen;Markku Kuittinen;Jari Turunen;Pasi Vahimaa;Matti Kaipiainen;and Seppo Nenonen. 2004. Journal of modern optics
LED light coupling into a lightguide with gratings
S. Siitonen;P. Laakkonen;P. Vahimaa;M. Kuittinen;M. Parikka and K. Mönkkönen. 2004. OSA Technical Digest
Loss in the grids: analysis of inductive grid filters of X-ray detectors
Tuomas Vallius;Pasi Vahimaa and Jari Turunen. 2004.
On soft X-ray and ultraviolet optical properties of metallic gratings
T. Vallius;P. Vahimaa;and J. Turunen. 2004.
Optical activity of chiral metallic nanoparticles
K. Jefimovs;T. Vallius;P. Vahimaa;J. Turunen;Yu. Svirko;N. Saito;R. Shimano;and M. Kuwata-Gonokami. 2004.
Overall coherence and coherent-mode expansion of spectrally partially coherent plane-wave pulses
H. Lajunen;J. Tervo;and P. Vahimaa. 2004. Journal of the optical society of america a: optics image science and vision
Rigorous and approximate analysis of metallic gratings in soft X-ray and EUV regions
Tuomas Vallius;Jari Turunen;and Pasi Vahimaa. 2004. Journal of modern optics
Rigorous and approximate analysis of metallic gratings in soft X-ray and EUV regions
Tuomas Vallius;Pasi Vahimaa and Jari Turunen. 2004. Proceedings of SPIE : the International Society for Optical Engineering
Rigorous justification of the thin element approximation
T. Vallius;P. Vahimaa;and J. Turunen. 2004.
Thin element approximation and rigorous diffraction theory
Tuomas Vallius;Pasi Vahimaa and Marko Honkanen. 2004.
Time-independent perturbation theory for modeling channel waveguides
Tuomas Vallius;Pasi Vahimaa;Jani Tervo;and Jari Turunen. 2004.
Unified measures for optical fields: degree of polarization and effective degree of coherence
P. Vahimaa and J. Tervo. 2004. Journal of Optics A: Pure and Applied Optics
X-rays and microstructures: can we trust the methods of the optical region?
Tuomas Vallius;Pasi Vahimaa and Jari Turunen. 2004.
Optical activity in subwavelength-period arrays of chiral metal particles
Tuomas Vallius;Konstantins Jefimovs;Jari Turunen;Pasi Vahimaa;Yuri Svirko. 2003. Applied physics letters
Optical activity of chiral nanogratings
Konstantins Jefimovs;Tuomas Vallius;Pasi Vahimaa;Jari Turunen;Yuri Svirko. 2003.
Polarization control by arrays of chiral metallic nanoparticles
Vallius Tuomas;Svirko Yuri;Vahimaa Pasi;Jefimovs Konstantins;Turunen Jari. 2003.
Spectral coherence properties of temporally modulated stationary light sources
Lajunen Hanna;Tervo Jani;Turunen Jari;Vahimaa Pasi;Wyrowski Frank. 2003. Optics express
General vectorial decomposition of electromagnetic fields with application to propagation-invariant and rotating fields
Pääkkönen Pertti;Tervo Jani;Vahimaa Pasi;Turunen Jari;Gori Franco. 2002. Optics express
Linear and nonlinear optical properties of arrays of noncentrosymmetric gold nanoparticles
Hemmo Tuovinen;Konstantins Jefimovs;Pasi Vahimaa;Tuomas Vallius;Yuri Svirko;Jari Turunen;Nikolai V. Tkachenko;Helge Lemmetyinen;Martti Kauranen. 2002.
Linear and second order nonlinear optical properties of arrays of noncentrosymmetric gold nanoparticles
Hemmo Tuovinen;Konstantins Jefimovs;Pasi Vahimaa;Tuomas Vallius;Jari Turunen;Nikolai V. Tkachenko;Helge Lemmetyinen;Martti Kauranen. 2002. Journal of Nonlinear Optical Physics
On propagation-invariant and self-imaging intensity distributions of electromagnetic fields
Tervo Jani;Vahimaa Pasi;Turunen Jari. 2002. Journal of modern optics
Partially coherent Gaussian pulses
Pertti Pääkkönen;Jari Turunen;Pasi Vahimaa;Ari T. Friberg;and Frank Wyrowski. 2002. Optics communications
Polarization diffractive optics of chiral nanogratings
Tuomas Vallius;Pasi Vahimaa;Jari Turunen;Yuri Svirko. 2002.
Pulse deformations at guided-mode resonance filters
Tuomas Vallius;Pasi Vahimaa;Jari Turunen. 2002. Optics express
Bragg waveguide-grating analysis by quasi-rigorous approach based on Redheffer's star product
Tervo Jani;Kuittinen Markku;Vahimaa Pasi;Turunen Jari;Aalto Timo;Heimala Päivi;Leppihalme Matti. 2001. Optics communications
Electromagnetic modeling of longitudinally periodic diffractive waveguide elements by Redheffer's star product approach
Tervo Jani;Kuittinen Markku;Vahimaa Pasi;Turunen Jari;Aalto Timo;Heimala Päivi;Leppihalme Matti. 2001. EOS Topical Meeting Digest
Linear and non-linear optical properties of rectangular arrays of L-shaped metal nanoparticles
Konstantins Jefimovs;Jari Turunen;Pasi Vahimaa;Tuomas Vallius;Martti Kauranen;Hemmo Tuovinen. 2001.
Polarization Dependent Diffractive Devices
Markku Kuittinen;Pasi Vahimaa;Pertti Pääkkönen. 1999. Finnish Optics Days
Iterative model for wave propagation in Kerr media
Pertti Pääkkönen;Pasi Vahimaa;Ari T Friberg and Jari Turunen. 1998. Pure and Applied Optics

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Markkinointi Markkinointi

Teknistä tallennustilaa tai pääsyä tarvitaan käyttäjäprofiilien luomiseen mainosten lähettämistä varten tai käyttäjän seuraamiseksi verkkosivustolla tai useilla verkkosivustoilla vastaavia markkinointitarkoituksia varten.

Näytä asetukset

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Tarkenna hakuasi

Pasi Vahimaa

Projektit

Avainsanat

Wellbeing at the 21st century innovative learning environment called learning ground

Fotoniikasta valoa Suomen hyvinvointiin: Selvitys alan vaikuttavuudesta ja kasvunäkymistä

Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy

Atmospheric oxidation and carbon contamination of silver and its effect on surface-enhanced Raman spectroscopy (SERS)

Highly active surface-enhanced Raman scattering (SERS) substrates based on gold nanoparticles infiltrated into SiO2 inverse opals

A solution to the fabrication and tarnishing problems of surface-enhanced Raman spectroscopy (SERS) fiber probes

High Aspect-Ratio Iridium-Coated Nanopillars for Highly Reproducible Surface-Enhanced Raman Scattering (SERS)

Self-organized Polymer Wrinkles: A Lithography-free Pathway for Surface-enhanced Raman Scattering (SERS) Substrates

Daylight Colored Optimal Spectra for Improved Color Discrimination

Femtosecond laser processing and spatial light modulator

Parallel femtosecond laser ablation with individually controlled intensity

Polymer and composite polymer slot waveguides

Polymeric slot waveguide interferometer for sensor applications

Uniform distribution of Ag particles upon imprinted polymer grating for Raman signal enhancement

Efficient speckle-free laser marking using a spatial light modulator

Eigenvectors of optimal color spectra

Horizontal slot waveguide channel for enhanced Raman scattering

Parallel Femtosecond Laser Processing using Intensity Modulated Diffraction Pattern Produced with Spatial Light Modulator

Parallel microstructuring using femtosecond laser and spatial light modulator

Resonant waveguide grating (RWG): overcoming the problem of angular sensitivity by conical, broad-band illumination for fluorescence measurements

Spatial coherence measurement of polychromatic light with modified Young's interferometer

Water spray assisted ultrashort laser pulse ablation

Changes in collagen cross-linking of articular cartilage are revealed by spectral reflectance imaging

Control of cultured human cells with femtosecond laser ablated patterns on steel and plastic surfaces

Femtosecond laser pulse ablation with two-dimensional two-grating interferometer

Nondestructive fluorescence-based quantification of threose-induced collagen cross-linking in bovine articular cartilage

Number of colors generated by smooth nonfluorescent reflectance spectra

Optical Properties of Rhodium 2,2'-Biimidazole Carbonyl Complex

Polymeric slot waveguide at visible wavelength

Resonant waveguide grating (RWG): overcoming the problem of angular 1 sensitivity by conical, broad-band illumination for fluorescence measurements

Imprinting the nanostructures on the high refractive index semiconductor glass

Linear birefringence magnitude of artificial self-assembled DNA crystals

Optical spectral reflectance of human articular cartilage - relationships with tissue structure, composition and mechanical properties

Water-Assisted Femtosecond Laser Pulse Ablation of High Aspect Ratio Holes

Controlling the hydrophobic properties of material surface using femtosecond ablation

Distinguishing between deterministic and stochastic pulse broadening

Giant enhancement of second-harmonic generation in multiple diffraction orders from sub-wavelength resonant waveguide grating

Shifted-elementary-mode representation for partially coherent vectorial fields

Fluorescence signal enhancement with single excitation enhancing and emission directing resonant waveguide structure

Spectrally partially coherent propagation-invariant fields

Strong fluorescence-signal gain with single-excitation-enhancing and emission-directing nanostructured diffraction grating

Wire-grid polarizers in the volume plasmon region

Abnormal behavior of wire grid gratings

Analysis of interferograms from a diffractive-lens-based common-path interferometer

Behavioral changes in wire grid gratings

Design and Analysis of Compact Spectrometer for Illumination Recognition

Dielectric subwavelength resonant waveguide grating enhancing laser-induced fluorescence

Enhancement of laser-induced fluorescence at 473 nm excitation with subwavelength resonant waveguide gratings

Independent-elementary-field model for three-dimensional spatially partially coherent sources

Strong Enhancement of Local Fields and Second-Harmonic Generation in a Resonant Waveguide Grating

Time-dependent physical spectrum of Gaussian Schell-model pulses

Unordinary properties of wire grid polarizers

Common-path diffractive lens interferometer

Compact grating based interferometer for illumination recognition

Compact spectrometer based on total internal reflection and diffractive grating

Compact spectrometer for illumination recognition

Comparison of optical constants of thin Al and Ir films between deposition techniques and thicknesses

Dependence of optical properties of thin aluminium and iridium films on deposition technique and thickness

Dependence of refractive indexes and extinction coefficients of Al and Ir films on deposition technique and thickness

Enhancing second-harmonic generation by all-dielectric sub-wavelength resonant waveguide grating

Injection moulding integration of a red VCSEL illuminator module for a hologram reader sensor

Inspection of micro injection molded lenses by means of common-path interferometer

OPTICAL CONSTANTS DEPENDENCE OF THIN Al AND Ir FILMS ON FILM THICKNESS AND DEPOSITION TECHNIQUE

Refractive index and extinction coefficient dependence of thin Al and Ir films on deposition technique and thickness

Strong enhancement of nonlinearity in resonant waveguide grating

Strong enhancement of second-harmonic generation in all-dielectric resonant waveguide grating

Time-dependent physical spectra of Gaussian Schell-model pulses

Beaming light from a subwavelength slit in a corrugated environment

Common-path diffractive lens interferometer

Common-path interferometer with diffractive lens

Diffractive lens interferometer

Electromagnetic field computation in semiconductor laser resonators

Electromagnetic modal approach to analyzing microcavities

Enhancing light-matter interaction by sub-wavelength resonance gratings

Finite-elementary-source model for partially coherent radiation

Highly directional light transmission from a subwavelength slit in metallic screen surrounded by dielectric grating