Chinese Optics Letters, 2010, 8 (6): 546, Published Online: Jun. 22, 2010  

Relations between skylight scattering angle and degree of polarization under different sky conditions Download: 830次

Author Affiliations
1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Abstract
The relations between scattering angle (SA) and the degree of polarization (DOP) of skylights are studied. Measurements under different sky conditions demonstrate that all relation curves between SA and DOP can be described as parabolas. DOP reaches its peak when SA is 90° and the sizes of scattering particles are much smaller than the wavelengths of skylight. The peak value of DOP moves by a small drift when the size of the particle increases. We propose and analyze a polarization dependence model for SA and DOP. Results from simulation are in good agreement with experimental results.

Xufeng Huang, Yang Bu, Xiangzhao Wang. Relations between skylight scattering angle and degree of polarization under different sky conditions[J]. Chinese Optics Letters, 2010, 8(6): 546.

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