Bibcode
Uribe-Patarroyo, N.; Alvarez-Herrero, A.; García Parejo, P.; Vargas, J.; Heredero, R. L.; Restrepo, R.; Martínez-Pillet, V.; Del Toro Iniesta, J. C.; López, A.; Fineschi, S.; Capobianco, G.; Georges, M.; López, M.; Boer, G.; Manolis, I.
Referencia bibliográfica
Solar Physics and Space Weather Instrumentation IV. Edited by Fineschi, Silvano; Fennelly, Judy. Proceedings of the SPIE, Volume 8148, pp. 814810-814810-12 (2011).
Fecha de publicación:
9
2011
Número de citas
0
Número de citas referidas
0
Descripción
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.