Carrier-envelope phase of ultrashort pulsed Hermite-Gaussian beams on propagation
Carrier-envelope phase of ultrashort pulsed Hermite-Gaussian beams on propagation
复制标题
超短脉冲埃尔米特-高斯光束传播时的载波包络相位
DOI：
10.1088/1612-2011/11/12/125301
复制
发表时间：
2014
影响因子：
1.7
通讯作者：
Pang Zhaoguang
中科院分区：
文献类型：
--
作者：
Yang Zhenjun;Dai Zhiping;Zhang Shumin;Pang Zhaoguang
详细推导了超短脉冲厄米-高斯光束在传输过程中的载波包络相位解析表达式。通过数值计算说明了不同参数下超短脉冲厄米-高斯光束在传输过程中CE相位的演变。结果表明，Hermite函数的阶数对CE相的演化有较大影响。Hermite函数的阶数越高，CE相越大。束腰影响近场的CE相位，特别是在少数瑞利距离内。此外，在传播过程中，轴上CE相位的变化大于光束周边的变化。
An analytical expression of the carrier–envelope (CE) phase of ultrashort pulsed Hermite–Gaussian beams on propagation has been deduced in detail. Numerical calculations have been carried out to illustrate the evolution of the CE phase of ultrashort pulsed Hermite–Gaussian beams on propagation with different parameters. The results show that the order of the Hermite function greatly affects the evolution of the CE phase. The higher the order of the Hermite function, the larger the CE phase is. The beam waist affects the CE phase in the near field, especially in a few Rayleigh distances. In addition, the variation in the CE phase on the axis is larger than that on the beam periphery on propagation.