Imaging polarimeters based on liquid crystal variable retarders: An emergent technology for space instrumentation
Por:
Alvarez-Herrero, A., Uribe-Patarroyo, N., 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.
Publicada:
1 ene 2011
Resumen:
The use of Liquid Crystal Variable Retarders (LCVRs) as polarization modulators are envisaged as a promising novel technique for space instrumentation due to the inherent advantage of eliminating the need for conventional rotary polarizing optics hence the need of mechanisms. LCVRs is a mature technology for ground applications; they are wellknow, already used in polarimeters, and during the last ten years have undergone an important development, driven by the fast expansion of commercial Liquid Crystal Displays. In this work a brief review of the state of the art of imaging polarimeters based on LCVRs is presented. All of them are ground instruments, except the solar magnetograph IMaX which flew in 2009 onboard of a stratospheric balloon as part of the SUNRISE mission payload, since we have no knowledge about other spaceborne polarimeters using liquid crystal up to now. Also the main results of the activity, which was recently completed, with the objective to validate the LCVRs technology for the Solar Orbiter space mission are described. In the aforementioned mission, LCVRs will be utilized in the polarisation modulation package of the instruments SO/PHI (Polarimetric and Helioseismic Imager for Solar Orbiter) and METIS/COR (Multi Element Telescope for Imaging and Spectroscopy, Coronagraph). © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Filiaciones:
Alvarez-Herrero, A.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
Uribe-Patarroyo, N.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
García Parejo, P.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
Vargas, J.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
Heredero, R.L.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
Restrepo, R.:
Instituto Nacional de Técnica Aeroespacial-INTA, Laboratorio de Instrumentación Espacial-LINES, 28850 Torrejón de Ardoz Madrid, Spain
Martínez-Pillet, V.:
Instituto de Astrofísica de Canarias-IAC, Vía Láctea s/n, E38205 La Laguna, Tenerife, Spain
Del Toro Iniesta, J.C.:
Instituto de Astrofísica de Andalucía-IAA, CSIC, Camino Bajo de Huétor 50, 18008 Granada, Spain
López, A.:
Instituto de Astrofísica de Andalucía-IAA, CSIC, Camino Bajo de Huétor 50, 18008 Granada, Spain
Fineschi, S.:
Istituto Nazionale di Astronomia-INAF, Osservatorio Astronomico di Torino-OATo, 20 Strada Osservatorio, Pino Torinese (TO), Italy
Capobianco, G.:
Istituto Nazionale di Astronomia-INAF, Osservatorio Astronomico di Torino-OATo, 20 Strada Osservatorio, Pino Torinese (TO), Italy
Georges, M.:
Center Spatial de Liége-Université de Liège, Liege Science Park, Avenue du Pré-Aily, 4031 Angleur, Belgium
López, M.:
Visual Display S. L., Edificio CEEI, 2.17, Parque Tecnológico de Boecillo, 47151 Boecillo, Valladolid, Spain
Boer, G.:
Arcoptix S. A., Chemin de Trois Portes 18, Neuchatel, Switzerland
Manolis, I.:
European Space Agency-ESA, ESTEC Optical Instruments Section (EOP-PIO), PO Box 299, 2200 AG Noordwijk, Netherlands
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