Space-qualified liquid-crystal variable retarders for wide-field-of-view coronagraphs

N. Uribe-Patarroyo; A. Alvarez-Herrero; P. García Parejo; J. Vargas; R. L. Heredero; R. Restrepo; V. Martínez Pillet; J. C. del Toro Iniesta; A. López; S. Fineschi; G. Capobianco; M. Georges; M. López; G. Boer; I. Manolis

doi:10.1117/12.904919

6 October 2011 Space-qualified liquid-crystal variable retarders for wide-field-of-view coronagraphs

N. Uribe-Patarroyo, A. Alvarez-Herrero, P. García Parejo, J. Vargas, R. L. Heredero, R. Restrepo, V. Martínez Pillet, J. C. del Toro Iniesta, A. López, S. Fineschi, G. Capobianco, M. Georges, M. López, G. Boer, I. Manolis

Author Affiliations +

Proceedings Volume 8148, Solar Physics and Space Weather Instrumentation IV; 814810 (2011) https://doi.org/10.1117/12.904919
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

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.

Citation Download Citation

N. Uribe-Patarroyo, A. Alvarez-Herrero, P. García Parejo, J. Vargas, R. L. Heredero, R. Restrepo, V. Martínez Pillet, J. C. del Toro Iniesta, A. López, S. Fineschi, G. Capobianco, M. Georges, M. López, G. Boer, and I. Manolis "Space-qualified liquid-crystal variable retarders for wide-field-of-view coronagraphs", Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 814810 (6 October 2011); https://doi.org/10.1117/12.904919

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available