Implementation of a Controller for a Space-Grade, Piezo-Actuated Fabry-Perot Interferometer

Autor: Christer Holmlund, Roberts Trops

Publikováno v: IEEE Access, Vol 10, Pp 83664-83677 (2022)

A tunable Fabry-Perot interferometer (FPI) can be used as an optical band-pass filter. This type of filter is used in spectrometers and spectral imagers. The transmitted wavelength depends on the optical cavity adjusted by an electronic controller. T

Externí odkaz: https://doaj.org/article/236f726f7b024eee8bc7e538cac18dfc

Performance of MOEMS FPI based cubic-inch hyperspectral camera

Autor: Roberts Trops, Antti Näsilä, Christer Holmlund, Hans Toivanen, Rami Mannila, Ingmar Stuns, Endija Briede, Kai Viherkanto, Martti Blomberg, Heikki Saari

Publikováno v: Trops, R, Näsila, A, Holmlund, C, Toivanen, H, Mannila, R, Stuns, I, Briede, E, Viherkanto, K, Blomberg, M & Saari, H 2022, Performance of MOEMS FPI based cubic-inch hyperspectral camera . in H Zappe, W Piyawattanametha, W Piyawattanametha & Y-H Park (eds), MOEMS and Miniaturized Systems XXI ., 1201302, International Society for Optics and Photonics SPIE, Proceedings of SPIE-The International Society for Optical Engineering, vol. 12013, MOEMS and Miniaturized Systems XXI 2022, Virtual, Online, 20/02/22 . https://doi.org/10.1117/12.2609426

The MOEMS Fabry-Perot interferometer (MFPI) based hyperspectral cameras have the advantage of being low-cost and highly compact, but the performance characteristics determine if particular device can be used in given application. This paper describes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8edec1fd37aa48113b5f032654150a79
https://doi.org/10.1117/12.2609426

Miniature MOEMS hyperspectral imager with versatile analysis tools

Autor: Anna Maria Hakola, Severi Jääskeläinen, Ilkka Pölönen, Matti A. Eskelinen, Leevi Annala, Roberts Trops, Anna Rissanen, Heikki Saari, Antti Näsilä

Publikováno v: Trops, R, Hakola, A M, Jääskeläinen, S, Näsilä, A, Annala, L, Eskelinen, M A, Saari, H, Pölönen, I & Rissanen, A 2019, Miniature MOEMS hyperspectral imager with versatile analysis tools . in W Piyawattanametha, Y-H Park & H Zappe (eds), MOEMS and Miniaturized Systems XVIII ., 109310W, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 10931, MOEMS and Miniaturized Systems XVIII 2019, San Francisco, California, United States, 2/02/19 . https://doi.org/10.1117/12.2506366

The Fabry-Perot interferometers (FPI) are essential components of many hyperspectral imagers (HSI). While the Piezo-FPI (PFPI) are still very relevant in low volume, high performance applications, the tunable MOEMS FPI (MFPI) technology enables volum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4797f7686ac4a4d099f0704ae469ae95
http://urn.fi/URN:NBN:fi:jyu-201907023543

Hand-held MEMS hyperspectral imager for VNIR mobile applications

Autor: Harri Ojanen, Tahvo Havia, Heikki Saari, Roberts Trops, Bin Guo, Antti Näsilä, Altti Akujärvi, Ingmar Stuns, Anna Rissanen

Publikováno v: Näsilä, A, Trops, R, Stuns, I, Havia, T, Saari, H, Guo, B, Ojanen, H J, Akujärvi, A & Rissanen, A 2018, Hand-held MEMS hyperspectral imager for VNIR mobile applications . in MOEMS and Miniaturized Systems XVII ., 105450R, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 10545, MOEMS and Miniaturized Systems XVII 2018, San Francisco, United States, 30/01/18 . https://doi.org/10.1117/12.2286472

This paper presents a novel miniaturized hand-held hyperspectral imager for VNIR range of λ = 600 - 900 nm based on MEMS Fabry-Perot interferometer (MFPI) technology. In recent years, tunable MFPI optical filters have been utilized to demonstrate se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae47189b20e836a5eba24c2fc4494387
https://cris.vtt.fi/en/publications/88f17814-7e3f-4ff9-88b6-28c01665e92a