Lens based Focal Plane Arrays Coupled to Distributed Absorbers: Imaging System Trade-offs

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

To characterize the spectral coupling between a lens based Focal Plane Array and its Quasi-Optical system, Coherent Fourier Optics methodology is employed. A lens absorber design is proposed and compared to an existing bare absorber-based imaging system. It is shown that the performance of the two imagers is comparable in terms of aperture efficiency, Point Spread Function, and normalized throughput. Moreover, the proposed lens absorber achieves 5 folds better NETD in comparison to the bare absorber due to its smaller physical area. A prototype of the proposed geometry is under fabrication as a proof of concept.
Original languageEnglish
Title of host publication2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
Subtitle of host publicationProceedings
Place of PublicationDanvers
PublisherIEEE
Number of pages1
ISBN (Electronic)978-1-7281-9424-0
ISBN (Print)978-1-7281-9425-7
DOIs
Publication statusPublished - 2021
EventIRMMW-THZ 2021: 46th International Conference on Infrared, Millimeter, and Terahertz Waves - Online at Chengdu, China
Duration: 30 Aug 20213 Sep 2021
Conference number: 46th

Publication series

NameInternational Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume2021-August
ISSN (Print)2162-2027
ISSN (Electronic)2162-2035

Conference

ConferenceIRMMW-THZ 2021
Country/TerritoryChina
CityOnline at Chengdu
Period30/08/213/09/21

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