Abstract
The geometric attenuation characteristics and geometric attenuation factor is significant for reflection on a rough surface, which describes the masking and shadowing effect on rough surfaces. When studying the attenuation of light on random Perfect Electrical Conductor (PEC) Gaussian rough surfaces using the integral equation of electromagnetics and the scattering theory, the incident state and wavelength are taken into account in this paper. The Finite Difference Time Domain (FDTD) simulation results show that light attenuation strongly related to wavelength, incident state, and rough surface topography. As a result, light attenuation can be precisely calculated, simulated, and characterized by the incident parameter and surface topography.
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