谐波
干扰(通信)
物理
动量(技术分析)
激光器
量子隧道
领域(数学)
频道(广播)
光学
光电子学
量子力学
电信
电压
计算机科学
财务
经济
数学
纯数学
作者
Lingyu Zhang,Zhuo-Xuan Xie,Can Wang,Xin-Lei Ge,Jing Guo
标识
DOI:10.1088/1674-1056/ad5d95
摘要
Abstract By numerically solving the semiconductor Bloch equation (SBEs), we theoretically study the high-harmonic generation of ZnO crystals driven by one-color and two-color intense laser pulses. The results show the enhancement of harmonics and the cut-off remains the same in the two-color field, which can be explained by the recollision trajectories and electron excitation from multi-channels. Based on the quantum path analysis, we investigate contribution of different ranges of the crystal momentum k of ZnO to the harmonic yield, and find that in two-color laser fields, the intensity of the harmonic yield of different ranges from the crystal momentum makes a big difference and the harmonic intensity is depressed from all k channels, which is related to the interferences between harmonics from symmetric k channels.
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