Optical bullets in media with quadratic nonlinearity at the competition of second- and third-order dispersions

机译：二次非线性介质在二阶和三阶色散竞争下的光学子弹

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We study with the help of numerical simulation the generation of second optical harmonic neglecting group velocity dispersion but taking into account third order dispersion effect at either fundamental or doubled frequency. At that, a component at another frequency usually undergoes second order dispersion in experiments. Varying values and signs of the third order dispersion at quasi-zero values of the second-order dispersion we reveal the conditions of bullet formation and stable propagation.

机译：我们借助数值模拟研究了忽略基团速度色散的二次光谐波的产生，但考虑了基频或倍频下的三阶色散效应。那时，另一频率的分量在实验中通常经历二阶色散。在二阶色散的准零值处改变三阶色散的值和符号，我们揭示了子弹形成和稳定传播的条件。

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《Conference on Nonlinear Optics and its Applications》|2020年|1135821.1-1135821.8|共8页
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Aleksei A. Kalinovich; Sergey V. Sazonov; Maria V. Komissarova; Irina G. Zakharova;
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Two-component light bullet; few-cycle pulse; gradient waveguide; second-order dispersion;

机译：两组分轻弹;少周期脉冲梯度波导二阶色散;

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Optical bullets in media with quadratic nonlinearity at the competition of second- and third-order dispersions

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