CAJ | 학술논문

光学镜面上的激光散射特性对光学系统性能的影响十分重要。利用修正的米氏散射理论模拟计算了光学镜面的双向反射分布函数（BRDF）。结果表明：镜面上的颗粒污染物能够十分明显地影响光的散射特性。此外，入射激光的波长与BRDF的值成反比，波长较短时，散射较复杂。因此，保持镜面的洁净对维护光学镜面的性能十分重要。
광학경면상적격광산사특성대광학계통성능적영향십분중요。이용수정적미씨산사이론모의계산료광학경면적쌍향반사분포함수（BRDF）。결과표명：경면상적과립오염물능구십분명현지영향광적산사특성。차외，입사격광적파장여BRDF적치성반비，파장교단시，산사교복잡。인차，보지경면적길정대유호광학경면적성능십분중요。
The properties of optical system are affected by laser scattering characteristics of optical mirror significantly. Bidirectional reflectance distribution function (BRDF) of the optical mirror is simulated and calcu-lated by modified Mie theory. The results show that the scattering characteristics of light are affected by particu-late contaminants on the surface of a mirror obviously. In addition, the wavelength of a beam of incident laser is inversely proportional to BRDF value and scattering will becomes very complicated as the wavelength is shorter. Keeping the surface of optical mirror clean is very important for maintaining the properties of optical mirror.