Recovering the frequency dependent modulation function of the achromatic half-wave plate for POL-2: the SCUBA-2 polarimeter
| Autor: | Julian Steven House, Giampaolo Pisano, Vic Haynes, Pierre Bastien, Giorgio Savini, Peter A. R. Ade |
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| Rok vydání: | 2009 |
| Předmět: |
Physics
Spectral index business.industry Materials Science (miscellaneous) Astrophysics::Instrumentation and Methods for Astrophysics Polarimetry Polarimeter Modulation function Polarization (waves) Spectro-polarimetry half wave plates polarization modulation Waveplate Industrial and Manufacturing Engineering law.invention Optics Achromatic lens law Business and International Management business Refractive index |
| Zdroj: | Applied optics. 48(11) |
| ISSN: | 1539-4522 |
| Popis: | A spectro-polarimetric method is presented to allow the recovery of the frequency dependent polarization modulation function for an achromatic half-wave plate. We show how the non ideal nature of the modulator can be characterized for removal of both instrument effects and variations related to the source spectral index. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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