Opto-Electronic Engineering, Volume. 50, Issue 11, 230222-1(2023)

Analysis of surface scattering characteristics of ultra-smooth optical components in gravitational wave detection system

Yunhao Zhang, Zheqiang Zhong, and Bin Zhang*
Author Affiliations
  • College of Electronics Information Engineering, Sichuan University, Chengdu, Sichuan 610065, China
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    In gravitational-wave detection systems, the surface scattering properties of ultra-smooth optical components play a crucial role in achieving high-precision gravitational-wave measurements. To analyze and predict the surface scattering properties of ultra-smooth optical components accurately and rapidly, a non-paraxial scalar scattering model, the Generalized Beckmann-Kirchhoff (GBK) model, was built up. On this basis, the influences of both the incident angle and the scattering azimuth angle on the angular resolved scattering distributions of both P-polarized and S-polarized incident light were investigated. Under different statistical distribution characteristics of optical surfaces, the effects of incident angle, azimuth angle, autocorrelation length, slope, cut-off frequency, and surface roughness on the scattering angle resolution distribution were analyzed. The research results can provide useful references for the manufacturing of ultra-smooth optical components and the generation and mitigation of stray light in gravitational-wave detection systems.

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    Yunhao Zhang, Zheqiang Zhong, Bin Zhang. Analysis of surface scattering characteristics of ultra-smooth optical components in gravitational wave detection system[J]. Opto-Electronic Engineering, 2023, 50(11): 230222-1

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    Paper Information

    Category: Research Articles

    Received: Sep. 5, 2023

    Accepted: Nov. 10, 2023

    Published Online: Mar. 26, 2024

    The Author Email: Zhang Bin (张彬)

    DOI:10.12086/oee.2023.230222

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