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Showing 2008 · physics.opticsShow all
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physics.optics2008
Temperature-dependent refractive index of CaF2 and Infrasil 301
Douglas B. Leviton, Bradley J. Frey, Timothy J. Madison
In order to enable high quality lens designs using calcium fluoride (CaF2) and Heraeus Infrasil 301 (Infrasil) for cryogenic operating temperatures, we have measured the absolute r…
physics.optics2008★ 10 cited
Temperature-dependent absolute refractive index measurements of synthetic fused silica
Douglas B. Leviton, Bradley J. Frey
Using the Cryogenic, High-Accuracy Refraction Measuring System (CHARMS) at NASA's Goddard Space Flight Center, we have measured the absolute refractive index of five specimens take…
physics.optics2008
High accuracy, absolute, cryogenic refractive index measurements of infrared lens materials for JWST NIRCam using CHARMS
Douglas B. Leviton, Bradley J. Frey, Todd Kvamme
The refractive optical design of the James Webb Space Telescope (JWST) Near Infrared Camera (NIRCam) uses three infrared materials in its lenses: LiF, BaF2, and ZnSe. In order to p…