Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Vehmas, Tapani"'
We show theoretically and experimentally how a flat-top second-order response can be achieved with a self-coupled single add-drop ring resonator based on two couplers with different splitting ratios. The resulting device is a 1x1 filter, reflecting l
Externí odkaz:
http://arxiv.org/abs/2304.11146
Autor:
Korpusenko, Mikhail, Manoocheri, Farshid, Kilpi, Olli-Pekka, Varpula, Aapo, Kainlauri, Markku, Vehmas, Tapani, Prunnila, Mika, Ikonen, Erkki
We investigate the Predictable Quantum Efficient Detector (PQED) in the visible and near-infrared wavelength range. The PQED consists of two n-type induced junction photodiodes with $Al_2O_3$ entrance window. Measurements are performed at the wavelen
Externí odkaz:
http://arxiv.org/abs/2106.12211
Autor:
Korpusenko, Mikhail, Manoocheri, Farshid, Kilpi, Olli Pekka, Varpula, Aapo, Kainlauri, Markku, Vehmas, Tapani, Prunnila, Mika, Ikonen, Erkki
Publikováno v:
Korpusenko, M, Manoocheri, F, Kilpi, O P, Varpula, A, Kainlauri, M, Vehmas, T, Prunnila, M & Ikonen, E 2022, ' Characterization of predictable quantum efficient detector at 488 nm and 785 nm wavelengths with an order of magnitude change of incident optical power ', Measurement Science and Technology, vol. 33, no. 1, 015206 . https://doi.org/10.1088/1361-6501/ac367a
Funding Information: Hannu Ronkainen is acknowledged for useful discussions. We thank financial support from Business Finland co-innovation project RaPtor (Project No. 6030/31/2018). This work is partly funded by the Academy of Finland Flagship Progr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3f2f18cc8faa417a87736e834bf25e11
https://aaltodoc.aalto.fi/handle/123456789/111464
https://aaltodoc.aalto.fi/handle/123456789/111464
Autor:
Kalliopuska, Juha, García, Francisco, Santala, Marko, Eränen, Simo, Karttunen, Seppo, Virolainen, Tuula, Kovero, Tomi, Vehmas, Tapani, Orava, Risto
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 2008 591(1):92-97
Autor:
Aalto, Timo, Vehmas, Tapani, Kapulainen, Markku, Heimala, Päivi, Delrosso, Giovanni, Sun, Fei, Gao, Feng
Publikováno v:
Aalto, T, Vehmas, T, Kapulainen, M, Heimala, P, Delrosso, G, Sun, F & Gao, F 2020, Monolithic Ge integration on the 3 µm SOI platform for 40 GHz photodiodes . in Q Liu, J M Hartmann, J R Holt, X Gong, V Jain, G Niu, G Masini, A Ogura, S Miyazaki, M Ostling, W Bi, A Schulze & A Mai (eds), PRiME 2020 : SiGe, Ge, and Related Compounds: Materials, Processing, and Devices 9 . Electrochemical Society ECS, ECS Transactions, no. 5, vol. 98, pp. 303-313, Pacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200, Honolulu, United States, 4/10/20 . https://doi.org/10.1149/09805.0303ecst
Ge photodiodes were integrated on the 3 µm SOI platform, where the 3 µm thick Si waveguides offer ultra-low propagation losses (~0.1 dB/cm), ultra-dense integration (µm-scale bends), small polarization dependency (down-to-zero birefringence) and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::1826b413526f09907e29f8409b17a8d7
https://cris.vtt.fi/en/publications/4c48ba76-c71e-40a1-96ee-04151acdaf53
https://cris.vtt.fi/en/publications/4c48ba76-c71e-40a1-96ee-04151acdaf53
Akademický článek
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Autor:
Aalto, Timo, Cherchi, Matteo, Harjanne, Mikko, Fei Sun, Vehmas, Tapani, Bhat, Srivathsa, Kapulainen, Markku, Hokkanen, Ari, Lehtimäki, Lauri, Holmberg, Heikki, Haapalinna, Atte
Publikováno v:
Proceedings of SPIE; 12/8/2018, Vol. 10914, p1-11, 11p
Autor:
Reed, Graham T., Knights, Andrew P., Vehmas, Tapani, Kapulainen, Markku, Heimala, Päivi, Delrosso, Giovanni, Sun, Fei, Gao, Feng, Aalto, Timo
Publikováno v:
Proceedings of SPIE; March 2020, Vol. 11285 Issue: 1 p112850V-112850V-9, 1015660p
Autor:
Schröder, Henning, Chen, Ray T., Hiltunen, Marianne, Harjanne, Mikko T., Vehmas, Tapani, Wälchli, Ben, Heimala, Päivi, Aalto, Timo
Publikováno v:
Proceedings of SPIE; March 2020, Vol. 11286 Issue: 1 p112860I-112860I-8, 1015749p
Autor:
Aalto, Timo, Cherchi, Matteo, Harjanne, Mikko, Bhat, Srivathsa, Heimala, Paivi, Sun, Fei, Kapulainen, Markku, Hassinen, Tomi, Vehmas, Tapani
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics; Sep/Oct2019, Vol. 25 Issue 5, p1-9, 9p