Benjamin Asamoah

Sorting microplastics from other materials in water samples by ultra-high-definition imaging

Peiponen, Kai Erik; Kanyathare, Boniphace; Hrovat, Blaž; Papamatthaiakis, Nikolaos; Hattuniemi, Joni; Asamoah, Benjamin; Haapala, Antti; Koistinen, Arto; Roussey, Matthieu. 2023. Journal of the european optical society: rapid publications. 19: . 14 A1 Journal article (refereed), original research

Controlling Topology and Polarization State of Lasing Photonic Bound States in Continuum

Mohamed, Sughra; Wang, Jie; Rekola, Heikki; Heikkinen, Janne; Asamoah, Benjamin; Shi, Lei; Hakala, Tommi K. 2022. Laser and photonics reviews. 16: A1 Journal article (refereed), original research

Polarization-dependent wideband metamaterial absorber for ultraviolet to near-infrared spectral range applications

Li, Fangfang; Issah, Ibrahim; Baah, Marian; Amedalor, Reuben; Quarshie, Miriam; Bawuah, Prince; Asamoah, Benjamin O.. 2022. Optics express. 30: 25974-25984 A1 Journal article (refereed), original research

Scattering dominated spatial coherence and phase correlation properties in plasmonic lattice lasers

Heikkinen, Janne I; Asamoah, Benjamin; Calpe, Roman; Nečada, Marek; Koivurova, Matias; Hakala, Tommi K. 2022. New journal of physics. 24: A1 Journal article (refereed), original research

Light and matter interactions on plasmonic platforms

Asamoah, Benjamin O. 2021. Publications of the University of Eastern Finland. Dissertations in Forestry and Natural Sciences G5 Doctoral dissertation (article)

Optical Monitoring of Microplastics Filtrated from Wastewater Sludge and Suspended in Ethanol

Asamoah, Benjamin O; Salmi, Pauliina; Räty, Jukka; Ryymin, Kalle; Talvitie, Julia; Karjalainen, Anna K; Kukkonen, Jussi VK; Roussey, Matthieu; Peiponen, Kai-Erik. 2021. Polymers. 13: 871 A1 Journal article (refereed), original research

Passive tunable and polarization-insensitive fan-like metamaterial absorber in the visible spectrum

Issah, Ibrahim; Li, Fangfang; Baah, Marian; Otoo, Isaac A.; Asilevi, Lewis; Bawuah, Prince; Asamoah, Benjamin O.. 2021. Journal of the optical society of america b: optical physics. 38: C1-C10 A1 Journal article (refereed), original research

Polarization dependent beaming properties of a plasmonic lattice laser

Asamoah, Benjamin O; Partanen, Henri; Mohamed, Sughra; Heikkinen, Janne; Halder, Atri; Koivurova, Matias; Necada, Marek; Setälä, Tero; Turunen, Jari; Friberg, Ari T; Hakala, Tommi K. 2021. New journal of physics. 23: 63037 A1 Journal article (refereed), original research

Towards the Development of Portable and In Situ Optical Devices for Detection of Micro-and Nanoplastics in Water: A Review on the Current Status

Asamoah, Benjamin O; Uurasjärvi, Emilia; Räty, Jukka; Koistinen, Arto; Roussey, Matthieu; Peiponen, Kai-Erik. 2021. Polymers. 13: 730 A2 Review article, Literature review, Systematic review

Detecting Microplastics with Optics

Peiponen, Kai-Erik; Asamoah, Benjamin O; Kanyathare, Boniphace; Räty, Jukka; Roussey, Matthieu. 2020. Optics and photonics news. 31: 24-31 D1 Article in a trade journal

Double resonant plasmonic lattices for Raman studies

Alam, Khairul; Kabusure, Kabusure M; Asamoah, Benjamin O; Nuutinen, Tarmo; Baah, Marian; Mohamed, Sughra; Matikainen, Antti; Heikkinen, Janne; Rekola, Heikki; Roussey, Matthieu; Kuittinen, Markku; Hakala, Tommi K. 2020. Nanoscale. 12: 23166 A1 Journal article (refereed), original research

Identification of Plastic Type and Surface Roughness of Film-Type Plastics in Water Using Kramers-Kronig Analysis

Kanyathare, Boniphace Elphace; Asamoah, Benjamin; Ishaq, Muhammad Umair; Amoani, James; Räty, Jukka; Peiponen, Kai-Erik. 2020. Chemosensors. 8: 88 A1 Journal article (refereed), original research

Laser beam scattering for the detection of flat, curved, smooth, and rough microplastics in water

Asamoah, BO; Amoani, J; Roussey, M; Peiponen, K-E. 2020. Optical review. 27: 217-224 A1 Journal article (refereed), original research

On optical sensing of surface roughness of flat and curved microplastics in water

Asamoah, Benjamin; Roussey, Matthieu; Peiponen, Kai-Erik. 2020. Chemosphere. 254: 126789 A1 Journal article (refereed), original research

Optical screening for presence of banned Sudan III and Sudan IV dyes in edible palm oils

Andoh, Sampson Saj; Nyave, Kenneth; Asamoah, Benjamin; Kanyathare, Boniphace; Nuutinen, Tarmo; Mingle, Cheetham; Peiponen, Kai-Erik; Roussey, Matthieu. 2020. Food additives and contaminants part a: chemistry analysis control exposureand risk assessment. 37: 1049-1060 A1 Journal article (refereed), original research

Optical transmission spectra study in visible and near-infrared spectral range for identification of rough transparent plastics in aquatic environments

Kanyathare, B; Asamoah, BO; Ishaq, U; Amoani, J; Räty, J; Peiponen, KE. 2020. Chemosphere. 248: 126071 A1 Journal article (refereed), original research

Optically induced crossover from weak to strong coupling regime between surface plasmon polaritons and photochromic molecules

Asamoah, Benjamin O; Mohamed, Sughra; Datta, Srijoyee; Karvinen, Petri; Rekola, Heikki; Priimagi, Arri; Hakala, Tommi K. 2020. Optics express. 28: 26509-26518 A1 Journal article (refereed), original research

Tunable photoluminescence of silver molecular clusters formed in Na+-Ag+ ion-exchanged antimony-doped photo-thermo-refractive glass matrix

Sgibnev, Yevgeniy; Asamoah, Benjamin; Nikonorov, Nikolay; Honkanen, Seppo. 2020. Journal of luminescence. 226: 117411 A1 Journal article (refereed), original research

A prototype of a portable optical sensor for the detection of transparent and translucent microplastics in freshwater

Asamoah, BO; Kanyathare, B; Roussey, M; Peiponen, KE. 2019. Chemosphere. 231: 161-167 A1 Journal article (refereed), original research

Imaginary optical constants in near-infrared (NIR) spectral range for the separation and discrimination of adulterated diesel oil binary mixtures

Kanyathare, Boniphace; Asamoah, Benjamin; Peiponen, Kai-Erik. 2018. Optical review. 2019; 26: 85-94 A1 Journal article (refereed), original research

Laser light scattering from rough glass liquid interface: a case study of screening of adulterated diesel oils

Peiponen, Kai-Erik; Kanyathare, Boniphace; Asamoah, Benjamin. 2018. Asian journal of physics. 27: 467-474 A1 Journal article (refereed), original research

Scanning of skin gloss by a diffractive optical element-based handheld glossmeter

Asamoah, Benjamin; Peiponen, Kai-Erik. 2018. Optical review. 25: 694-700 A1 Journal article (refereed), original research

Table model and portable optical sensors for the monitoring of time-dependent liquid spreading over rough surfaces

Asamoah, Benjamin Osae; Kanyathare, Boniphace; Peiponen, Kai-Erik. 2018. Journal of the european optical society: rapid publications. 14: 24 A1 Journal article (refereed), original research

Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes

Dau Thuy Minh, Asamoah Benjamin Darko, Belyaev Andrey, Chakkaradhari Gomathy, Hirva Pipsa, Jänis Janne, Grachova Elena V, Tunik Sergey P, Koshevoy Igor O. 2016. Dalton transactions. 45: 14160-14173 A1 Journal article (refereed), original research

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Sorting microplastics from other materials in water samples by ultra-high-definition imaging

Controlling Topology and Polarization State of Lasing Photonic Bound States in Continuum

Polarization-dependent wideband metamaterial absorber for ultraviolet to near-infrared spectral range applications

Scattering dominated spatial coherence and phase correlation properties in plasmonic lattice lasers

Light and matter interactions on plasmonic platforms

Optical Monitoring of Microplastics Filtrated from Wastewater Sludge and Suspended in Ethanol

Passive tunable and polarization-insensitive fan-like metamaterial absorber in the visible spectrum

Polarization dependent beaming properties of a plasmonic lattice laser

Towards the Development of Portable and In Situ Optical Devices for Detection of Micro-and Nanoplastics in Water: A Review on the Current Status

Detecting Microplastics with Optics

Double resonant plasmonic lattices for Raman studies

Identification of Plastic Type and Surface Roughness of Film-Type Plastics in Water Using Kramers-Kronig Analysis

Laser beam scattering for the detection of flat, curved, smooth, and rough microplastics in water

On optical sensing of surface roughness of flat and curved microplastics in water

Optical screening for presence of banned Sudan III and Sudan IV dyes in edible palm oils

Optical transmission spectra study in visible and near-infrared spectral range for identification of rough transparent plastics in aquatic environments

Optically induced crossover from weak to strong coupling regime between surface plasmon polaritons and photochromic molecules

Tunable photoluminescence of silver molecular clusters formed in Na+-Ag+ ion-exchanged antimony-doped photo-thermo-refractive glass matrix

A prototype of a portable optical sensor for the detection of transparent and translucent microplastics in freshwater

Imaginary optical constants in near-infrared (NIR) spectral range for the separation and discrimination of adulterated diesel oil binary mixtures

Laser light scattering from rough glass liquid interface: a case study of screening of adulterated diesel oils

Scanning of skin gloss by a diffractive optical element-based handheld glossmeter

Table model and portable optical sensors for the monitoring of time-dependent liquid spreading over rough surfaces

Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes