中国激光, 2009, 36 (s1): 235, 网络出版: 2009-06-18
受圆孔衍射的超短脉冲贝塞耳-高斯光束的传输特性
Propagation Properties of Ultrashort Pulsed Bessel-Gaussian Beams Diffracted by an Circular Aperture
激光光学 传输特性 超短脉冲贝塞耳-高斯光束 圆孔光阑 laser optics propagation property ultrashort pulsed Bessel-Gaussian beam circular aperture
摘要
基于衍射积分理论和复高斯函数展开法研究了超短脉冲贝塞耳-高斯光束通过圆孔光阑后在自由空间中的传输特性, 推导出解析的传输方程, 并对传输方程进行分析讨论和数值计算分析, 利用计算机软件进行绘图, 给出了归一化功率谱随横向距离的变化关系, 横向光强分布和脉冲波形随截断参数的变化关系。
Abstract
Based on the Fresnel diffraction integral, complex Gaussian function expansion and complex analytical signals method, the approximate analytical expression for ultrashort pulsed Bessel-Gaussian beams diffracted by an circular aperture in free space is derived. The normalized power spectrum, transversal intensity distribution, and optical pulse shape of ultrashort pulsed Bessel-Gaussian beam are studied in detail.
邹其徽, 朱红宇, 段茜. 受圆孔衍射的超短脉冲贝塞耳-高斯光束的传输特性[J]. 中国激光, 2009, 36(s1): 235. Zou Qihui, Zhu Hongyu, Duan Xi. Propagation Properties of Ultrashort Pulsed Bessel-Gaussian Beams Diffracted by an Circular Aperture[J]. Chinese Journal of Lasers, 2009, 36(s1): 235.