Stray light analysis and testing of a MODE lens telescope

Youngsik Kim; Marcos Esparza; Zichan Wang; Nicholas Brar; Heejoo Choi; Daewook Kim; Daniel Apai; Tom D. Milster

doi:10.1117/12.2635495

3 October 2022 Stray light analysis and testing of a MODE lens telescope

Youngsik Kim, Marcos Esparza, Zichan Wang, Nicholas Brar, Heejoo Choi, Daewook Kim, Daniel Apai, Tom D. Milster

Proceedings Volume 12221, Optical Manufacturing and Testing XIV; 122210F (2022) https://doi.org/10.1117/12.2635495
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

The stray light analysis and testing of multiple-order-diffraction engineered (MODE) lens telescope is an essential step in the evaluation of optical imaging performance of the telescope. The MODE primary lens has a multi-order diffractive (MOD) front surface and single-order (M = 1) diffractive Fresnel lens (DFL) rear surface. Both of MOD and DFL surfaces have four transitions between five annular zones. Stray light can be minimized to prevent unwanted photons from reaching the science instrument detectors. Stray light is evaluated on an optical testbed to test the polychromatic performance with a supercontinuum laser.

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Citation Download Citation

Youngsik Kim, Marcos Esparza, Zichan Wang, Nicholas Brar, Heejoo Choi, Daewook Kim, Daniel Apai, and Tom D. Milster "Stray light analysis and testing of a MODE lens telescope", Proc. SPIE 12221, Optical Manufacturing and Testing XIV, 122210F (3 October 2022); https://doi.org/10.1117/12.2635495

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