Youngsik Kim,1 Marcos Esparza,1 Zichan Wang,1 Nicholas Brar,1 Heejoo Choi,1 Daewook Kim,1 Daniel Apaihttps://orcid.org/0000-0003-3714-5855,2 Tom D. Milster1
1Wyant College of Optical Sciences, The Univ. of Arizona (United States) 2The Univ. of Arizona (United States)
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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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Youngsik Kim, Marcos Esparza, Zichan Wang, Nicholas Brar, Heejoo Choi, Daewook Kim, Daniel Apai, 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