24 October 2016 Fabrication of large-aperture, high efficiency, Fresnel diffractive membrane optic for space telescope
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Proceedings Volume 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 96820O (2016) https://doi.org/10.1117/12.2242266
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China
Abstract
Diffractive optical system can be a favorable choice for large-aperture space telescope to reduce the mass and size of image system. To meet the demand of large-aperture, high efficiency, lightweight diffractive optic for high resolution remote sensing, a 200 mm diameter, 20 μmthick, 4-level diffractive membrane fabricated is shown to have over 62% diffraction efficiency into the +1 order, with 0.051 efficiency RMS. Over 66% diffraction efficiency is achieved for a 100 mm aperture membrane, with 0.023 efficiency RMS. The membrane thickness uniformity control is discussed and 8 nm wave front error RMS is achieved in 100 mm diameter.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jian Zhang, Jian Zhang, Mengjuan Li, Mengjuan Li, Ganghua Yin, Ganghua Yin, Jianchao Jiao, Jianchao Jiao, Zhengkun Liu, Zhengkun Liu, Xiangdong Xu, Xiangdong Xu, Shaojun Fu, Shaojun Fu, } "Fabrication of large-aperture, high efficiency, Fresnel diffractive membrane optic for space telescope", Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 96820O (24 October 2016); doi: 10.1117/12.2242266; https://doi.org/10.1117/12.2242266
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