A Ray Tracing Approach to the Scattering of Electromagnetic Waves from Random Rough Surfaces at Terahertz Frequencies

2020 ◽  
Author(s):  
Fawad Sheikh ◽  
Yida Zhang ◽  
Yamen Zanteh ◽  
I. Mabrouk ◽  
M. Hasan ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Electromagnetic Waves ◽  
Rough Surfaces ◽  
Random Rough Surfaces ◽  
Terahertz Frequencies

scholarly journals Speckle statistics of electromagnetic waves scattered from perfectly conducting random rough surfaces

1993 ◽  
Vol 10 (12) ◽  
pp. 2628 ◽  
Author(s):  
Jose Antonio Sánchez-Gil ◽  
Manuel Nieto-Vesperinas ◽  
Fernando Moreno ◽  
Francisco González
Keyword(s):  
Electromagnetic Waves ◽  
Rough Surfaces ◽  
Random Rough Surfaces

scholarly journals Monte Carlo simulations for scattering of electromagnetic waves from perfectly conductive random rough surfaces

1987 ◽  
Vol 12 (12) ◽  
pp. 979 ◽  
Author(s):  
M. Nieto-Vesperinas ◽  
J. M. Soto-Crespo
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Electromagnetic Waves ◽  
Rough Surfaces ◽  
Random Rough Surfaces

Numerical Analysis on the Radiant Characteristics of Three-Dimensional Random Rough Surfaces

2009 ◽  
Author(s):  
Yanhui Feng ◽  
Wei Liu ◽  
Xinxin Zhang
Keyword(s):  
Electromagnetic Waves ◽  
Rough Surfaces ◽  
Polarization State ◽  
Radiation Heat Transfer ◽  
Three Dimensional ◽  
Simulation Method ◽  
Scattering Angle ◽  
Scattering Intensity ◽  
Random Rough Surfaces ◽  
Shadowing Effect

In the area of micro- and nano-scale radiation heat transfer, the radiant characteristics of rough surfaces have drawn increasing attention. In this paper, three-dimensional Gaussian random rough surfaces were created by the Monte Carlo simulation method. Ray tracing method combined with the Kirchhoff approximation was employed to analyze the shadowing effect of random surfaces with different roughness. The relative scattering intensity from rough surfaces was further investigated by the Fresnel law. The results indicated that the peak of the relative scattering intensity occurred at the anti-scattering angle and the scattering distributions were continuous. With increasing surface roughness, the height of the peak became lower, the width of distribution became wider, and the distribution range of the scattering angle and the azimuth of the reflection electromagnetic waves increased. Furthermore, the relative scattering intensity concentrated in the vicinity of the anti-scattering angle and the largest scattering intensity occurred in the specular direction. Taking into account of the effects of polarization state and wavelength of incidence waves, it was shown that the relative scattering intensity of s polarized incident wave was slightly larger than that of p polarization, while the relative scattering intensity became stronger as the wavelength increased.

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