The reflectivity of UV-laser beams under degenerate four-wave mixing in solid-state and liquid media is calculated in the case of electrostriction nonlinearity. It is shown that the response time of DFWM is quite short and its efficiency is high in comparison with SBS. We believe that such DFWM-mirrors can be efficiently used as PC-mirrors in UV. In theory the possibilities of a nonlinearity electrostriction mechanism for degenerate four-wave mixing (DFWM) of excimer lasers radiation have been analyzed. It should be noted that these lasers require a high speed response of a nonlinear medium. The dynamic fine (small) scale grating providing phase conjugation (PC) of pulse excimer lasers with a reflection coefficient by several tens of percentage has been demonstrated to have little response time (less than 10$+$MIN@9$/ s).
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机译：在电触发非线性的情况下，计算在固态和液体介质中退化的四波混合下的UV激光束的反射率。结果表明，与SBS相比，DFWM的响应时间很短，其效率很高。我们认为，这种DFWM镜子可以有效地用作紫外线的PC镜。理论上，已经分析了用于退化四波混合（DFWM）的非线性电触发机制的非线性电击射机制的可能性已经分析了准分子激光辐射的四波混合（DFWM）。应当注意，这些激光器需要非线性介质的高速响应。脉冲准分子激光器的动态细小（小）刻度提供相位缀合（PC）具有几十个百分比的反射系数的脉冲准分子激光器具有几乎没有响应时间（少于10美元+ $ Min @ 9 $ / s）。
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