Total reflection, frequency, and velocity tuning in optical pulse collision in nonlinear dispersive media
Total reflection, frequency, and velocity tuning in optical pulse collision in nonlinear dispersive media
复制标题
非线性色散介质中光脉冲碰撞的全反射、频率和速度调谐
DOI：
10.1103/physreva.82.033809
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发表时间：
2010
影响因子：
2.9
通讯作者：
A. P. Sukhorukov
中科院分区：
文献类型：
--
作者：
V. Lobanov;A. P. Sukhorukov
研究了色散非线性介质中强参考脉冲在另一频率处对弱信号脉冲的全内反射。由于两波碰撞的结果，信号脉冲改变了其频率和群速度，出现了时间延迟。我们发展了由光脉冲引起的运动不均匀引起的全反射的波和脉冲跟踪理论。得到了群速度失配临界值与泵浦强度和群速度色散的函数关系的解析表达式。研究了立方介质中亮孤子对信号脉冲反射的可能性。
The total internal reflection of a weak signal pulse from a powerful reference pulse at another frequency in a dispersive nonlinear medium is demonstrated. As a result of the two-wave collision, the signal pulse changes its frequency and group velocity, and time delay occurs. We develop both a wave and a pulse-tracing theory of the total reflection from the moving inhomogeneity induced by the optical pulse. An analytical expression for the critical value of group-velocity mismatch as a function of pump intensity and the group-velocity dispersion are obtained. The possibility of signal pulse reflection from a bright soliton in a cubic medium is considered.