强激光与粒子束2013，Vol.25Issue(9)：2257-2261,5.DOI:10.3788/HPLPB20132509.2257
啁啾脉冲高斯光束在大气湍流中的传输特性
Spectral characteristics of chirped pulsed Gaussian beams propagating in turbulent atmosphere
摘要
Abstract
Based on the extended Huygens-Fresnel principle,analytical expressions are derived for the cross-spectral density matrix of chirped pulsed Gaussian beams propagating in turbulent atmosphere,which are then numerically simulated.It is shown that there are blue shifts in the spectra of axis point when the spectral width of chirped pulsed Gaussian beams is more than a certain value of 0.336.The turbulence induces the decrease of relative frequency shift of on-axis spectra; the relative frequency shift of on-axis spectra increases nonlinearly with the increasing light source spectral width.Increasing the beam waist radius can inhibit the relative frequency shift and the beam broadening.关键词
激光光学/湍流大气/啁啾脉冲/相对频移/光谱强度Key words
laser optics/ turbulent atmosphere/ chirped pulse/ relative frequency shift/ spectral intensity分类
数理科学引用本文复制引用
曾祥梅,段作梁,常凌颖,张美志..啁啾脉冲高斯光束在大气湍流中的传输特性[J].强激光与粒子束,2013,25(9):2257-2261,5.基金项目
陕西省教育厅科研计划项目(11JK1005,11JK0931) （11JK1005,11JK0931）
陕西省自然基金基础研究计划项目(2012JQ8014) （2012JQ8014）
