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首页> 外文会议>The International Conference on Laser Physics and Quantum Optics was held in Shanghai, China, from August 25 to August 28, 1999 >Multiple-Scattering Effects in the Second Harmonic Light Generated at Randomly Rough Metallic Interfaces
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Multiple-Scattering Effects in the Second Harmonic Light Generated at Randomly Rough Metallic Interfaces

机译：随机粗糙金属界面上产生的第二谐波光中的多重散射效应

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摘要

We study theoretically the generation and scattering of second harmonic light at randomly rough metallic interfaces. For surfaces with relatively large roughness and slopes, we find that the angular distribution fo the scattered light at the harmonic frequency displays well-defined minima in the backscattering direction, and show that this effect is due to destructive interference between waves that have been multiply scattered in the valleys of the surface. It is also shown that the complex amplitudes obtained at the frequency 2 omega when the positions of the source and detector are exchanged exhibit some degree of anticorrelation.
机译：我们从理论上研究了在随机粗糙的金属界面处二次谐波光的产生和散射。对于具有相对较大的粗糙度和坡度的表面，我们发现谐波频率下的散射光的角度分布在反向散射方向上显示出明确定义的最小值，并且表明这种效果是由于倍增散射的波之间的相消干涉在地表的山谷中。还显示出，当交换源和检测器的位置时，在频率2Ω处获得的复振幅表现出一定程度的反相关。

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