Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Benjamin O Asamoah"'
Autor:
Benjamin O Asamoah, Henri Partanen, Sughra Mohamed, Janne Heikkinen, Atri Halder, Matias Koivurova, Marek Nečada, Tero Setälä, Jari Turunen, Ari T Friberg, Tommi K Hakala
Publikováno v:
New Journal of Physics, Vol 23, Iss 6, p 063037 (2021)
We study beaming properties of laser light produced by a plasmonic lattice overlaid with organic fluorescent molecules. The crossover from spontaneous emission regime to stimulated emission regime is observed in response to increasing pump fluence. T
Externí odkaz:
https://doaj.org/article/3dc847a30e4a4873a2f12229e475235b
Publikováno v:
Photoniques. :40-43
Optical spectroscopy techniques offer an additional dimension to classical methods for the detection and identification of complex particles in complex environments. We present some of these techniques applied in the frame of the fight against the pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02fc861c6aa9270f3bbca8a10de3eb56
https://doi.org/10.1051/photon/202111040
https://doi.org/10.1051/photon/202111040
Autor:
Sughra Mohamed, Tero Setälä, Henri Partanen, Tommi K. Hakala, Ari T. Friberg, Benjamin O. Asamoah, Jari Turunen, Matias Koivurova, Janne Heikkinen, Marek Nečada, Atri Halder
Funding Information: The work was funded by the Academy of Finland (Projects 322002, 308393, 310511). The work is part of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decisions 320166 and 320165. Publisher Cop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1813ee21c05eda595660a7db65d433f5
https://aaltodoc.aalto.fi/handle/123456789/108845
https://aaltodoc.aalto.fi/handle/123456789/108845
Publikováno v:
Optics Express
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::e1947024c75552868a370594febc158a
Autor:
Matthieu Roussey, Boniphace Kanyathare, Blaž Hrovat, Nikolaos Papamatthaiakis, Joni Hattuniemi, Benjamin O. Asamoah, Antti Haapala, Arto Koistinen, Kai-Erik Peiponen
Publikováno v:
EPJ Web of Conferences. 266:13031
We demonstrate that direct imaging is a powerful tool for the detection and recognition of microplastics in water, even in case of complex matrices. We use a commercial high-resolution imaging device (Valmet FS5, Valmet Oy.) originally developed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87015e23618a621a2be6b6bf9e53b050
https://doi.org/10.1051/epjconf/202226613031
https://doi.org/10.1051/epjconf/202226613031
Publikováno v:
Optical Review. 26:85-94
Fuel adulteration is a major factor contributing to environmental pollution. The tendency to adulterate diesel oil with kerosene is becoming prevalent in many countries, which is particularly driven by the lower cost of kerosene than of diesel oil. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e69b7afde10e1b8ab929849262164067
https://doi.org/10.1007/s10043-018-0481-9
https://doi.org/10.1007/s10043-018-0481-9
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 14, Iss 1, Pp 1-8 (2018)
Background Many applications require liquids to efficiently wet required surfaces as it denotes better performance. The dynamics of pure and complex liquid is known to influence the spreading properties; however, this influence is less understood and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5f14eb2ad7ff7a22524fb1e4b47191c
http://link.springer.com/article/10.1186/s41476-018-0093-9
http://link.springer.com/article/10.1186/s41476-018-0093-9
Autor:
Benjamin O. Asamoah, Kai-Erik Peiponen
Publikováno v:
Optical Review. 25:694-700
Skin specular gloss (referred to as “gloss’’) determination is important in dermatology and cosmetic industry as it gives an indication of the skin health and beauty. Its accurate determination is, therefore, necessary. Commercially available g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed922b42ef4a9ec4dad9da91c7231008
https://doi.org/10.1007/s10043-018-0462-z
https://doi.org/10.1007/s10043-018-0462-z
Publikováno v:
Chemosphere. 254
The growth of microplastic (MP) pollution is of increasing concern and represents a global challenge. In situ detection of these small particles is difficult because of their sizes, shapes, transparency or translucency, surface texture and ambient co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8466d3bab5bd355b7702e9e89a55423a
https://pubmed.ncbi.nlm.nih.gov/32335440
https://pubmed.ncbi.nlm.nih.gov/32335440