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Interaction of Pulsed Laser Beams in Quadratic Nonlinear Media

机译:二次非线性介质中脉冲激光束的相互作用

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摘要

A theory of three-wave cascade interaction of pulsed laser beams in quadratic nonlinear media is developed with regard to diffraction and dispersion. The space-time trajectories of signal motion in a medium with an inhomogeneity induced by high-power low-frequency pumping are analyzed. It is shown that total signal reflection from a moving localized inhomogeneity can be implemented. This reflection is accompanied by a change in the frequency, velocity, and propagation direction of the signal wave.
机译:针对衍射和色散,发展了脉冲激光束在二次非线性介质中的三波级联相互作用的理论。分析了大功率低频泵浦引起的非均匀介质中信号运动的时空轨迹。结果表明,可以实现来自移动局部不均匀性的总信号反射。这种反射伴随着信号波的频率,速度和传播方向的变化。

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