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首页> 外文期刊>Molecular crystals and liquid crystals >Some Peculiarities of Transient Processes in Planar Periodic-Planar Polarization Diffraction Gratings
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Some Peculiarities of Transient Processes in Planar Periodic-Planar Polarization Diffraction Gratings

机译：平面周期-平面偏振衍射光栅中瞬态过程的一些特殊性

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摘要

The transient processes in planar periodic-planar polarization diffraction gratings under influence short bipolar electric pulses are investigated. It is shown that the application of bipolar pulses with certain amplitude and frequency leads to significant increase of diffraction efficiency in non-zero diffraction orders as compared to steady-state diffraction. The dependence of diffraction efficiency of each diffraction order on both the amplitude and frequency of applied pulses is studied. It is shown that the maximum diffraction efficiency of necessary order can be controlled by choosing frequency and amplitude of external pulses. This phenomenon can be used for creation of adaptive polarization diffraction gratings functioning in none-steady state mode.
机译：研究了在短双极电脉冲的影响下平面周期-平面偏振衍射光栅中的瞬态过程。结果表明，与稳态衍射相比，具有一定幅度和频率的双极性脉冲的施加导致非零衍射级的衍射效率显着提高。研究了每个衍射级次的衍射效率对所施加脉冲的幅度和频率的依赖性。结果表明，可以通过选择外部脉冲的频率和幅度来控制必要阶数的最大衍射效率。此现象可用于创建在非稳态模式下工作的自适应偏振衍射光栅。

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