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Generalized theory and application of Stokes parameter measurements made with a single photoelastic modulator
Author(s) -
Yanwei Liu,
Grenville A. Jones,
Yong Peng,
Tiehan H. Shen
Publication year - 2006
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.2353894
Subject(s) - photodetector , monochromatic color , optics , calibration , stokes parameters , spectrum analyzer , physics , optical modulator , materials science , optoelectronics , phase modulation , quantum mechanics , scattering , phase noise
We report in this paper a generalized theory that describes the interaction between a monochromatic light beam and an optical system that includes one photoelastic modulator, one analyzer, and one photodetector. Based on the theory, a detailed four-step procedure is presented, which allows a precise measurement of the four Stokes parameters. An analysis of the systematic and random errors arising from the four-step measurements is also given as well as a calibration procedure that involves the use of a general retardation plate. As a practical application the procedure is used to analyze the magneto-optical properties of magnetic thin films grown on GaAs(001) substrates.

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