Abstract
Lens based focal plane arrays (FPAs) with thousand elements are promising candidates for wide scanning sub-millimeter security imaging systems. To analyze such arrays, a field correlation approach is employed to design an FPA of quartz lenses coupled to a reflector. We consider quartz as the lens material due to its lower cost compared to silicon lenses. Here we focus on the design of the lens element at the edge of the FPA. The reflector’s scanning angle at the edge of its FPA is 20.3°, and the lens surface is shaped to couple better to the reflector. The far-field performance of the optimized shaped lens is validated by full-wave simulations with excellent agreement. The simulated scan loss of the system is 2.6 dB. A prototype was fabricated and will be measured to validate the simulation.
| Original language | English |
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| Title of host publication | Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) |
| Publisher | IEEE |
| Number of pages | 2 |
| ISBN (Electronic) | 979-8-3503-3660-3 |
| ISBN (Print) | 979-8-3503-3661-0 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) - Montreal, Canada Duration: 17 Sept 2023 → 22 Sept 2023 Conference number: 48th |
Conference
| Conference | 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) |
|---|---|
| Country/Territory | Canada |
| City | Montreal |
| Period | 17/09/23 → 22/09/23 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.