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|Title:||Space-qualified liquid-crystal variable retarders for wide-field-of-view coronagraphs|
|Authors:||Uribe Patarroyo, N.|
Álvarez Herrero, A.
García Parejo, P.
Heredero, R. L.
Martínez Pilet, V.
Del Toro Iniesta, J. C.
|Keywords:||Coronagraphs;Liquid-Crystal variable retarders;Space applications|
|Publisher:||SPIE Optical Engineering Applications|
|Citation:||Proceedings of the Solar Physics and Space Weather Instrumentation 8148: 814810(2011)|
|Abstract:||Liquid-crystal variable retarders (LCVRs) are an emergent technology for space-based polarimeters, following its success as polarization modulators in ground-based polarimeters and ellipsometers. Wide-field double nematic LCVRs address the high angular sensitivity of nematic LCVRs at some voltage regimes. We present a work in which wide-field LCVRs were designed and built, which are suitable for wide-field-of-view instruments such as polarimetric coronagraphs. A detailed model of their angular acceptance was made, and we validated this technology for space environmental conditions, including a campaign studying the effects of gamma, proton irradiation, vibration and shock, thermo-vacuum and ultraviolet radiation.|
|Description:||(2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.|
|Appears in Collections:||(Espacio) Artículos|
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