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首页> 外文期刊>Technical physics letters: Letters to the Russian journal of applied physics >Spectral Dependence of Circular Photocurrent in Silver–Palladium Resistive Films
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Spectral Dependence of Circular Photocurrent in Silver–Palladium Resistive Films

机译：银钯电阻膜中圆形光电流的光谱依赖性

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摘要

The exposure of silver–palladium (Ag–Pd) resistive films to obliquely incident nanosecond pulsed laser radiation with wavelengths of 1064, 532, 354.7, and 266 nm leads to the appearance of a photocurrent dependent on the sign of the circular polarization of incident radiation (circular photocurrent). The photocurrent was determined by measuring pulsed photo-emf in a longitudinal geometry for which the plane of laser-radiation incidence onto the film was parallel to the electrodes. It is established that the response signal changes its sign with that of the angle of incidence, significantly decreases with the laser-radiation frequency, and consists of linear and circular contributions. The ratio of the circular to linear signal components significantly decreases with decreasing radiation wavelength. The obtained results can be used for the creation and development of a device capable of determining the sign of polarization of laser radiation.
机译：银钯（Ag-Pd）电阻膜暴露于波长为1064、532、354.7和266 nm的倾斜入射纳秒脉冲激光辐射中，导致光电流的出现取决于入射辐射的圆偏振征（圆形光电流）。通过在纵向几何形状中测量脉冲光电动势来确定光电流，在该纵向几何形状中，激光辐射入射到薄膜上的平面与电极平行。可以确定，响应信号的符号随入射角的变化而变化，随激光辐射频率而显着降低，并且由线性和圆形贡献组成。圆形与线性信号分量之比随着辐射波长的减小而显着降低。所获得的结果可用于创建和开发能够确定激光辐射的偏振迹象的设备。

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