23 August 2017 Cryogenic, infrared, optical beamsplitter wavefront error analysis and test
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Mounting large reflective-refractive optical elements for cryogenic space application requires careful engineering. Optical wavefront error performance is balanced with surviving launch environments and cryogenic temperatures. Mounting and ground testing of a 25 cm by 15 cm plano germanium optical beamsplitter element was completed. Cryogenic WFE testing was performed down to 115 K predicting compliance to operational environment performance requirements. This paper discusses the mount engineering including detailed analysis, testing, and results.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Newswander, Tyrel Rupp, "Cryogenic, infrared, optical beamsplitter wavefront error analysis and test", Proc. SPIE 10371, Optomechanical Engineering 2017, 103710M (23 August 2017); doi: 10.1117/12.2273078; https://doi.org/10.1117/12.2273078

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