| Original Articles |
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Computational Generation and the Simulation of the Light
Scattering of Self-Affine Fractal Random Surface |
| LIU Wen-Xian;TENG Shu-Yun;ZHANG Ning-Yu;LIU De-Li;CHENG Chuan-Fu |
| Department of Physics, Shandong Normal University, Ji’nan 250014 |
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| Cite this article: |
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LIU Wen-Xian, TENG Shu-Yun, ZHANG Ning-Yu et al 2001 Chin. Phys. Lett. 18 217-219 |
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Abstract We propose a method for the generation of self-affine fractal random surfaces, in which we use Fourier transform and its inversion in the algorithm. The light scattering of surfaces of this kind is simulated at different incident angles of illumination. The variation of the full width at half maximum (FWHM) of the intensity profile versus the perpendicular component k⊥ of the wave-vector shows clearly the characteristics of the surfaces parameters. The simulation demonstrates how the value of FWHM at k2⊥ w2 ≤ 1 region and the slope of ln wp - ln k⊥ curve at k2⊥ w2 ≥ 1 region are used, respectively, to extract the lateral correlation length ξ and the roughness exponent α.
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| Keywords:
42.25.Fx
47.53.+n
02.70.-c
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Published: 01 February 2001
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| PACS: |
42.25.Fx
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(Diffraction and scattering)
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47.53.+n
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(Fractals in fluid dynamics)
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02.70.-c
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(Computational techniques; simulations)
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