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Proceedings Paper

Techniques And Applications Of Elliptical Polarimetry In Astronomy And Atmospheric Sciences
Author(s): Robert A. Stokes
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Paper Abstract

An astronomical polarimeter is described that uses a photoelastic modulator and digital synchronous detection to measure simultaneously three of the four Stokes' parameters of the incident light. Light polarization by the telescope optics is the only important source of systematic offset error. In a stand-alone portable version a minicomputer is employed for data handling, control, and quick-look Fourier trans-formation of time-series data. A second version being developed for the new Anglo-French telescope interfaces to the telescope's data-handling computer via CAMAC. Results of recent observational programs on the x-ray binary star AM Herculis and atmospheric aerosol are shown to illustrate the instrument's capabilities.

Paper Details

Date Published: 19 October 1977
PDF: 5 pages
Proc. SPIE 0112, Optical Polarimetry: Instrumentation and Applications, (19 October 1977); doi: 10.1117/12.955566
Show Author Affiliations
Robert A. Stokes, Battelle-Northwest Laboratories (United States)
University of Kentucky (United States)

Published in SPIE Proceedings Vol. 0112:
Optical Polarimetry: Instrumentation and Applications
Rasheed M. A. Azzam; David Coffeen, Editor(s)

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