A Bayer mosaic pixel type image sensor with attached plasmonic microfilter towards multispectral imaging

Jiyeon Jeon; Byong Sun Chun; Hakseong Kim; Yeeun Na; Won Chegal; Deok-Kee Kim; Sang Jun Lee

doi:10.1117/12.2663243

22 June 2023 A Bayer mosaic pixel type image sensor with attached plasmonic microfilter towards multispectral imaging

Jiyeon Jeon, Byong Sun Chun, Hakseong Kim, Yeeun Na, Won Chegal, Deok-Kee Kim, Sang Jun Lee

Proceedings Volume PC12519, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imaging XXIX ; PC125190G (2023) https://doi.org/10.1117/12.2663243
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

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Abstract

The drawbacks of traditional multispectral imaging systems are their slow scanning speed and requirement for extremely accurate optical alignment. A bayer mosaic pixel type image sensor was manufactured by monolithically combining an infrared multi-band plasmonic microfilter with an InAs/GaSb type-II superlattice (T2SL) photodetector for each mosaic pixel. The quasi-three-dimensional (quasi-3D) plasmonic nanostructures as plasmonic microfilter had a period of 1.2 to 2.6 μm with 0.2 μm steps and were fabricated using nanoimprint lithography. The quasi-3D plasmon nanostructure has characteristics such as high optical transmission, wavelength selectivity, and wide incidence angle independence due to the effects of propagating and localized surface plasmon resonance of structure. Our research results suggest that it will be used as a core device in various fields by converging with IoT and big data technology because it does not require a separate optical system and can implement information for each infrared spectrum in real time.

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Jiyeon Jeon, Byong Sun Chun, Hakseong Kim, Yeeun Na, Won Chegal, Deok-Kee Kim, and Sang Jun Lee "A Bayer mosaic pixel type image sensor with attached plasmonic microfilter towards multispectral imaging", Proc. SPIE PC12519, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imaging XXIX , PC125190G (22 June 2023); https://doi.org/10.1117/12.2663243

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