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 language | English |
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| Title of host publication | 2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021 |
| Subtitle of host publication | Proceedings |
| Place of Publication | Danvers |
| Publisher | IEEE |
| Number of pages | 1 |
| ISBN (Electronic) | 978-1-7281-9424-0 |
| ISBN (Print) | 978-1-7281-9425-7 |
| DOIs | |
| Publication status | Published - 2021 |
| Event | IRMMW-THZ 2021: 46th International Conference on Infrared, Millimeter, and Terahertz Waves - Online at Chengdu, China Duration: 30 Aug 2021 → 3 Sept 2021 Conference number: 46th |
Publication series
| Name | International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz |
|---|---|
| Volume | 2021-August |
| ISSN (Print) | 2162-2027 |
| ISSN (Electronic) | 2162-2035 |
Conference
| Conference | IRMMW-THZ 2021 |
|---|---|
| Country/Territory | China |
| City | Online at Chengdu |
| Period | 30/08/21 → 3/09/21 |