Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Erkki Ikonen"'
Publikováno v:
AIP Advances, Vol 13, Iss 8, Pp 085119-085119-4 (2023)
Photons absorbed in silicon produce electron–hole pairs, which can cause impact ionization and quantum yield larger than one. Reliable determination of quantum yield at low charge-carrier energies (
Externí odkaz:
https://doaj.org/article/6d0d92993119447088bcb1fcbd9f7ad4
Autor:
Jussi Rossi, Juho Uotila, Sucheta Sharma, Toni Laurila, Roland Teissier, Alexei Baranov, Erkki Ikonen, Markku Vainio
Publikováno v:
Photoacoustics, Vol 23, Iss , Pp 100265- (2021)
We present an experimental comparison of photoacoustic responsivities of common highly absorbing carbon-based materials. The comparison was carried out with parameters relevant for photoacoustic power detectors and Fourier-transform infrared (FTIR) s
Externí odkaz:
https://doaj.org/article/a076501d8a824ec488383b9c9063ed24
Publikováno v:
Silva Fennica, Vol 54, Iss 2 (2020)
Leaf reflectance and transmittance spectra are essential information in many applications such as developing remote sensing methods, computing shortwave energy balance (albedo) of forest canopies, and monitoring health or stress of trees. Measurement
Externí odkaz:
https://doaj.org/article/10363c0ced7b40ea9e28f86f97e85caa
Autor:
Ozhan Koybasi, Ørnulf Nordseth, Trinh Tran, Marco Povoli, Mauro Rajteri, Carlo Pepe, Eivind Bardalen, Farshid Manoocheri, Anand Summanwar, Mikhail Korpusenko, Michael N. Getz, Per Ohlckers, Erkki Ikonen, Jarle Gran
Publikováno v:
Sensors, Vol 21, Iss 23, p 7807 (2021)
We performed a systematic study involving simulation and experimental techniques to develop induced-junction silicon photodetectors passivated with thermally grown SiO2 and plasma-enhanced chemical vapor deposited (PECVD) SiNx thin films that show a
Externí odkaz:
https://doaj.org/article/7d9fe49476d145a0bcba446e5077d374
Autor:
Aleksandr Aleksandrovich Danilenko, Masoud Rastgou, Farshid Manoocheri, Jussi Kinnunen, Virpi Korpelainen, Antti Lassila, Erkki Ikonen
Publikováno v:
Danilenko, A, Rastgou, M, Manoocheri, F, Kinnunen, J, Korpelainen, V, Lassila, A & Ikonen, E 2023, ' Characterization of PillarHall test chip structures using a reflectometry technique ', Measurement Science and Technology, vol. 34, no. 9, 094006 . https://doi.org/10.1088/1361-6501/acda54
Thin film samples where one of the thin layers consists of vacuum or air are called PillarHalls due to their support structure in silicon wafers. Custom PillarHall samples were provided by manufacturer and characterized by reflectometry with spectrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee569c1a20907cd1503c98102833e275
https://cris.vtt.fi/en/publications/31675d25-26e3-42c8-90bc-185a4ce6f009
https://cris.vtt.fi/en/publications/31675d25-26e3-42c8-90bc-185a4ce6f009
Autor:
Erkki Ikonen, Sucheta Sharma, Mohsen Ahmadi, Jussi Rossi, Markku Vainio, Zhipei Sun, Andreas Steiger
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::330dcccb6a61ea63890d7517e0aa557d
https://doi.org/10.1117/12.2647551
https://doi.org/10.1117/12.2647551
Autor:
Sucheta, Sharma, Mohsen, Ahmadi, Jussi, Rossi, Markku, Vainio, Zhipei, Sun, Andreas, Steiger, Erkki, Ikonen
Publikováno v:
Optics express. 30(24)
We report the photoacoustic (PA) response in the terahertz (THz) range by employing a detection process actuated with a silicon cantilever pressure sensor and a carbon-based radiation absorber. The detection relies on the mechanical response of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::15cd616e1ce36de96adb58e6b5865288
https://pubmed.ncbi.nlm.nih.gov/36523039
https://pubmed.ncbi.nlm.nih.gov/36523039
Publikováno v:
I3S2022Warsaw.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79400e28e317ab20149fef3fc9d7c30b
https://doi.org/10.3390/engproc2022021039
https://doi.org/10.3390/engproc2022021039
Publikováno v:
Tran, T, Porrovecchio, G, Smid, M, Ikonen, E, Dönsberg, T & Gran, J 2022, ' Determination of the responsivity of a predictable quantum efficient detector over a wide spectral range based on a 3D model of charge carrier recombination losses ', Metrologia, vol. 59, no. 4, 045012 . https://doi.org/10.1088/1681-7575/ac604b
Funding Information: This project (18SIB10 chipS.CALe) has received funding from the EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme. Authors of Aalto University a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8741789497e84a7ec6b9130504282ed
https://aaltodoc.aalto.fi/handle/123456789/116537
https://aaltodoc.aalto.fi/handle/123456789/116537
Autor:
Erkki Ikonen, Jussi Rossi, Juho Uotila, Markku Vainio, Farshid Manoocheri, Toni Laurila, Sucheta Sharma
Publikováno v:
Sharma, S, Laurila, T, Rossi, J, Uotila, J, Vainio, M, Manoocheri, F & Ikonen, E 2022, ' Electromagnetic radiation detection using cantilever-based photoacoustic effect : A method for realizing power detectors with broad spectral sensitivity and large dynamic range ', Sensors and Actuators A: Physical, vol. 337, 113191 . https://doi.org/10.1016/j.sna.2021.113191
Lisää oa-julkaisu, kun saatavilla. A sensitive photoacoustic detection approach employing a silicon cantilever is investigated for power measurement of electromagnetic radiation. The technique which is actuated by pressure waves generated through r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eff49468f0af4a50a59cf4627916552b
https://doi.org/10.1016/j.sna.2021.113191
https://doi.org/10.1016/j.sna.2021.113191