Acta Photonica Sinica, Volume. 45, Issue 4, 412006(2016)
Diffuse Reflection Associated with Scattering Phase Function from a Micro-region Close to the Source
Influence of the scattering phase function on the diffuse reflection of a micro-region close to the source was investigated by Monte Carlo simulations, and relationship between a semi-empirical model of diffuse reflection and the optical parameters related to the phase function was analyzed. Research shows that the scattered light of the micro-region close to the source is very sensitive to the scattering phase function, and the sensitivity will gradually weaken with increasing of collection aperture φ.When φ>1.8 mm, influence of the scattering phase function on the diffuse reflection is not obvious and relative change in reflectivity is less than 1%; when φ<1.8 mm, influence of the scattering phase function on the diffuse reflection can reach up to 15.2%. When the anisotropic factor g and the second-order optical parameter γ are used to characterize a single-particle scattering properties, the differences of scattering properties are reflected in the third-order parameter δ. The diffuse reflectance decreases with the increasing of δ and the influence of δ on the diffuse reflectance can reach 9%.
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LIAN Ge, LUO Wen-qian, WANG Ru-dan, XIAO Li-feng, LIU Ying. Diffuse Reflection Associated with Scattering Phase Function from a Micro-region Close to the Source[J]. Acta Photonica Sinica, 2016, 45(4): 412006
Received: Oct. 29, 2015
Accepted: --
Published Online: May. 11, 2016
The Author Email: Ge LIAN (15122636183@163.com)