Spectral imaging based on custom-made multi-strip filter arrays.
Appl Opt
; 63(13): 3576-3584, 2024 May 01.
Article
em En
| MEDLINE
| ID: mdl-38856543
ABSTRACT
Spectral imaging technology based on on-chip spectroscopy can find applications in areas including aerospace, industrial and consumer electronics, and so on. Since each application normally requires a different set and number of spectral bands, the development of customized spectroscopy solutions with more compact size and lower cost becomes quite important. In this paper, we demonstrate a compact, highly customizable imaging spectrometer scheme based on custom-made multi-strip filter arrays, which maintains an average high transmission of â¼85%, narrow bandwidth of â¼30n m, and high optical density of â¼O D2 in the blocking regions across the visible to near-infrared waveband. Spectral imaging experiments are conducted, and the accurate reconstruction of sparse spectral image data is demonstrated as well to prove the validity of the proposed scheme. As a result, the work reported in this paper allows researchers to develop customized spectral imaging equipment in a relatively easy way and also has a great potential to be engineered further for scalable production with a quite low cost.
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MEDLINE
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En
Ano de publicação:
2024
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Article