Fourier Photoellipsometers And Photopolarimeters Based On Modulated Optical Rotation

R. M. A. Azzam

doi:10.1117/12.955541

19 October 1977 Fourier Photoellipsometers And Photopolarimeters Based On Modulated Optical Rotation

R. M. A. Azzam

Proceedings Volume 0112, Optical Polarimetry: Instrumentation and Applications; (1977) https://doi.org/10.1117/12.955541
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

Several Fourier photometric ellipsometers and polarimeters are described whose operation is based on the use of modulated optical rotation. We start with the oscillating-analyzer ellipsometer (OAE) that consists of a linear analyzer preceded by an ac optical rotator and show how this basic instrument can be modified, by the temporary insertion of a quarter-wave compensator, to perform as a complete polarimeter. Permanent addition of the quarter-wave compensator and a second ac optical rotator to the OAE leads to a family of complete polarimeters in which either the compensator alone or, more generally, both the compensator and analyzer are, in effect, oscillating at the same frequency as is induced by the presence of the ac optical rotation. We show, in all cases, how the Stokes parameters of the radiation incident on the polarimeter can be determined from limited Fourier analysis of the signal output of a linear photodetector that intercepts the light leaving the polarimeter.

Citation Download Citation

R. M. A. Azzam "Fourier Photoellipsometers And Photopolarimeters Based On Modulated Optical Rotation", Proc. SPIE 0112, Optical Polarimetry: Instrumentation and Applications, (19 October 1977); https://doi.org/10.1117/12.955541

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