Description of versatile optical polarimetric scatterometer that measures all 16 elements of the Mueller matrix for reflection and transmission: application to measurements of scatter cross sections, ellipsometric parameters, optical activity, and the com

Ezekiel Bahar; Robert D. Kubik

doi:10.1117/1.2979232

1 September 2008 Description of versatile optical polarimetric scatterometer that measures all 16 elements of the Mueller matrix for reflection and transmission: application to measurements of scatter cross sections, ellipsometric parameters, optical activity, and the com

Ezekiel Bahar, Robert D. Kubik

Author Affiliations +

Optical Engineering, Vol. 47, Issue 9, 093603 (September 2008). https://doi.org/10.1117/1.2979232

Abstract

A detailed description of an optical polarimetric scatterometer, its capabilities, and special application are presented. This instrument measures the 4×4 Mueller matrix elements as well as bidirectional reflective distribution functions (scatter cross sections) for light that is scattered from a target. Incident polarized light at wavelengths λ=0.6328 and λ=1.06 μm can be directed toward the target in an arbitrary direction. The receiver can be located anywhere in the solid angle 4π. Backscatter measurements, most commonly used in remote sensing, can also be obtained. The scatterometer has been used to validate different analytical/numerical solutions to a broad class of electromagnetic scattering problems, in controlled laboratory experiments. The optical constants of liquids and solids can be determined by relating the Mueller matrix elements to the ellipsometric parameters. Recently, the relationships between the Mueller matrix elements and the parameters related to the optical activity have been derived. Thus, the scatterometer has the potential to detect, identify, and characterize optical rotation and circular dichroism of biological and chemical materials that possess chiral properties. These relationships are based on depolarization of waves reflected and transmitted through optically active media. Only the eight quasi off-diagonal elements of the Mueller matrix are sensitive to optical activity.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Ezekiel Bahar and Robert D. Kubik "Description of versatile optical polarimetric scatterometer that measures all 16 elements of the Mueller matrix for reflection and transmission: application to measurements of scatter cross sections, ellipsometric parameters, optical activity, and the com," Optical Engineering 47(9), 093603 (1 September 2008). https://doi.org/10.1117/1.2979232

Published: 1 September 2008

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