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Chin. Phys. B, 2017, Vol. 26(2): 024210    DOI: 10.1088/1674-1056/26/2/024210

Degree of polarization based on the three-component pBRDF model for metallic materials

Kai Wang(王凯)1, Jing-Ping Zhu(朱京平)1, Hong Liu(刘宏)1,2
1 Key Laboratory for Physical Electronics and Devices of the Ministry of Education and Shaanxi Key Laboratory of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China;
2 The State Key Laboratory of Astronautic Dynamics, Xi'an Satellite Control Center, Xi'an 710043, China
Abstract  An expression of degree of polarization (DOP) for metallic material is presented based on the three-component polarized bidirectional reflectance distribution function (pBRDF) model with considering specular reflection, directional diffuse reflection and ideal diffuse reflection. The three-component pBRDF model with a detailed reflection assumption is validated by comparing simulations with measurements. The DOP expression presented in this paper is related to surface roughness, which makes it more reasonable in physics. Test results for two metallic samples show that the DOP based on the three-component pBRDF model accords well with the measurement and the error of existing DOP expression is significantly reduced by introducing the diffuse reflection. It indicates that our DOP expression describes the polarized reflection properties of metallic surfaces more accurately.
Keywords:  degree of polarization (DOP)      polarized bidirectional reflectance distribution function (pBRDF)      metallic materials  
Received:  15 August 2016      Revised:  18 October 2016      Accepted manuscript online: 
PACS:  42.25.Ja (Polarization)  
  78.20.Bh (Theory, models, and numerical simulation)  
  78.66.Bz (Metals and metallic alloys)  
Corresponding Authors:  Jing-Ping Zhu     E-mail:

Cite this article: 

Kai Wang(王凯), Jing-Ping Zhu(朱京平), Hong Liu(刘宏) Degree of polarization based on the three-component pBRDF model for metallic materials 2017 Chin. Phys. B 26 024210

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[1] Model of bidirectional reflectance distribution function for metallic materials
Kai Wang(王凯), Jing-Ping Zhu(朱京平), Hong Liu(刘宏), Xun Hou(侯洵). Chin. Phys. B, 2016, 25(9): 094201.
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