Effects of near-specular scattering on polarimetry

Soe-Mie F. Nee

doi:10.1117/12.186679

14 September 1994 Effects of near-specular scattering on polarimetry

Soe-Mie F. Nee

Proceedings Volume 2265, Polarization Analysis and Measurement II; (1994) https://doi.org/10.1117/12.186679
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Near-specular scattering (NSS) accompanying a specular beam causes errors in polarimetric measurements, especially for rough surfaces or in the short wavelength region. The Muller matrix for reflection or transmission including the NSS effect will be formulated and analyzed. NSS can cause a polarizer to have slight retardation and nonvanishing extinction ratio. NSS also can cause a retarder to be slightly diattenuated. Null ellipsometry is immune to incoherent and unpolarized NSS, but still cannot avoid partially coherent and polarized NSS. Polarimetric measurements of reflectance or transmittance pick up all types of scattering. NSS can be minimized by keeping the irradiated area and the receiving solid angle as small as possible.

Citation Download Citation

Soe-Mie F. Nee "Effects of near-specular scattering on polarimetry", Proc. SPIE 2265, Polarization Analysis and Measurement II, (14 September 1994); https://doi.org/10.1117/12.186679

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