Radiometric and design model for the tunable light-guide image processing snapshot spectrometer (TuLIPSS)

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dc.citation.firstpage30174en_US
dc.citation.issueNumber19en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage30197en_US
dc.citation.volumeNumber29en_US
dc.contributor.authorZheng, Deshengen_US
dc.contributor.authorFlynn, Christopheren_US
dc.contributor.authorStoian, Razvan I.en_US
dc.contributor.authorLu, Jiaweien_US
dc.contributor.authorCao, Haimuen_US
dc.contributor.authorAlexander, Daviden_US
dc.contributor.authorTkaczyk, Tomasz S.en_US
dc.contributor.authorTkaczyk, Tomasz S.en_US
dc.date.accessioned2021-09-21T15:37:56Zen_US
dc.date.available2021-09-21T15:37:56Zen_US
dc.date.issued2021en_US
dc.description.abstractThe tunable light-guide image processing snapshot spectrometer (TuLIPSS) is a novel remote sensing instrument that can capture a spectral image cube in a single snapshot. The optical modelling application for the absolute signal intensity on a single pixel of the sensor in TuLIPSS has been developed through a numerical simulation of the integral performance of each optical element in the The tunable light-guide image processing snapshot spectrometer (TuLIPSS) is a novel remote sensing instrument that can capture a spectral image cube in a single snapshot. The optical modelling application for the absolute signal intensity on a single pixel of the sensor in TuLIPSS has been developed through a numerical simulation of the integral performance of each optical element in the TuLIPSS system. The absolute spectral intensity of TuLIPSS can be determined either from the absolute irradiance of the observed surface or from the tabulated spectral reflectance of various land covers and by the application of a global irradiance approach. The model is validated through direct comparison of the simulated results with observations. Based on tabulated spectral reflectance, the deviation between the simulated results and the measured observations is less than 5% of the spectral light flux across most of the detection bandwidth for a Lambertian-like surface such as concrete. Additionally, the deviation between the simulated results and the measured observations using global irradiance information is less than 10% of the spectral light flux across most of the detection bandwidth for all surfaces tested. This optical modelling application of TuLIPSS can be used to assist the optimal design of the instrument and explore potential applications. The influence of the optical components on the light throughput is discussed with the optimal design being a compromise among the light throughput, spectral resolution, and cube size required by the specific application under consideration. The TuLIPSS modelling predicts that, for the current optimal low-cost configuration, the signal to noise ratio can exceed 10 at 10 ms exposure time, even for land covers with weak reflectance such as asphalt and water. Overall, this paper describes the process by which the optimal design is achieved for particular applications and directly connects the parameters of the optical components to the TuLIPSS performance.en_US
dc.identifier.citationZheng, Desheng, Flynn, Christopher, Stoian, Razvan I., et al.. "Radiometric and design model for the tunable light-guide image processing snapshot spectrometer (TuLIPSS)." <i>Optics Express,</i> 29, no. 19 (2021) Optical Society of America: 30174-30197. https://doi.org/10.1364/OE.435733.en_US
dc.identifier.digitaloe-29-19-30174en_US
dc.identifier.doihttps://doi.org/10.1364/OE.435733en_US
dc.identifier.urihttps://hdl.handle.net/1911/111394en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rightsPublished under the terms of the OSA Open Access Publishing Agreementen_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleRadiometric and design model for the tunable light-guide image processing snapshot spectrometer (TuLIPSS)en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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