Visible and short-wave infrared fiber-based snapshot imaging spectrometer with a custom high-throughput relay system

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dc.citation.firstpage1106en_US
dc.citation.issueNumber5en_US
dc.citation.journalTitleOptics Continuumen_US
dc.citation.lastpage1121en_US
dc.citation.volumeNumber2en_US
dc.contributor.authorLu, Jiaweien_US
dc.contributor.authorZheng, Deshengen_US
dc.contributor.authorStoian, Razvan-Ionuten_US
dc.contributor.authorFlynn, Christopheren_US
dc.contributor.authorAlexander, Daviden_US
dc.contributor.authorTkaczyk, Tomasz S.en_US
dc.date.accessioned2024-05-03T15:51:13Zen_US
dc.date.available2024-05-03T15:51:13Zen_US
dc.date.issued2023en_US
dc.description.abstractThis paper presents the design and fabrication of a fiber-based snapshot imaging spectrometer working in both visible (490 nm-732 nm) and short-wave infrared (1090 nm - 1310 nm) ranges. To maximize the light collection efficiency, a custom relay system with 0.25 NA and 20 mm field of view (FOV) was designed and integrated. The bench setup showed that the custom relay system could fully resolve 10 µm fiber cores over the entire FOV among visible and short-wave infrared ranges. The numerical aperture (NA) match provided a 2.07X fold throughout improvement in the visible range and about 10X fold in the SWIR range compared to the previous generations, enabling imaging with a fast frame rate and under low illumination conditions. The presented imaging spectrometer generated spectral datacubes with 35000 spatial samplings and 23 spectral channels. Spectral urban imaging results obtained by the spectrometer in both visible and SWIR ranges are presented. Finally, we collected spectral images of apple bruising to show potential applications in the food quality industry.en_US
dc.identifier.citationJiawei Lu, Desheng Zheng, Razvan-Ionut Stoian, Christopher Flynn, David Alexander, and Tomasz S. Tkaczyk, "Visible and short-wave infrared fiber-based snapshot imaging spectrometer with a custom high-throughput relay system," Opt. Continuum 2, 1106-1121 (2023)en_US
dc.identifier.digitaloptcon-2-5-1106en_US
dc.identifier.doihttps://doi.org/10.1364/OPTCON.484551en_US
dc.identifier.urihttps://hdl.handle.net/1911/115573en_US
dc.language.isoengen_US
dc.publisherOptica Publishing Groupen_US
dc.rightsPublished under the terms of the Optica Open Access Publishing Agreementen_US
dc.rights.urihttps://opg.optica.org/library/license_v2.cfm#VOR-OAen_US
dc.titleVisible and short-wave infrared fiber-based snapshot imaging spectrometer with a custom high-throughput relay systemen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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