Fast-axis orientation dependence on driving voltage for a Stokes polarimeter based on concrete liquid-crystal variable retarders
| Autor: | Vincent Devlaminck, Jean-Michel Charbois, Patrick Terrier |
|---|---|
| Přispěvatelé: | LAGIS-SI, Laboratoire d'Automatique, Génie Informatique et Signal (LAGIS), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2010 |
| Předmět: |
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Materials science Temperature control business.industry OCIS codes: 120.2130 110.5405 150.1488 Materials Science (miscellaneous) Homogeneity (statistics) Control variable Polarimeter 02 engineering and technology Polarizer 021001 nanoscience & nanotechnology Retarder 01 natural sciences Industrial and Manufacturing Engineering law.invention 010309 optics Light intensity Optics law 0103 physical sciences Business and International Management 0210 nano-technology business Voltage |
| Zdroj: | Applied optics Applied optics, Optical Society of America, 2010, 49 (22), pp.4278-4283 |
| ISSN: | 1539-4522 0003-6935 |
| DOI: | 10.1364/ao.49.004278 |
| Popis: | International audience; Nowadays liquid-crystal variable retarders (LCVRs) are widely used in optical systems because of their capacity to provide a controlled variable optical retardance by means of an applied voltage, without the need of any moving mechanical part. Nevertheless, the main disadvantages of these components, reported by users in several papers, are the necessity of using a temperature control system for precise measurements, the degradation under UV irradiation, and the lack of spatial retardance homogeneity. In this paper, we report that the orientation of the LCVR fast axis may also be dependent on applied voltage. The consideration of this phenomenon improves the performances of an imaging polarimeter. In this work, we present the problem, introduce the method of calibration that was used for the experiment, and discuss the results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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