物理学报2012，Vol.61Issue(24)：244-250,7.
部分空间相干和部分光谱相干厄米-高斯脉冲光束的焦场的相干特性
Spatial correlation properties of focused spatially and spectrally partially coherent Hemite-Gaussian pulsed beams
摘要
Abstract
Based on the propagation law of partially coherent beams and Fourier transform, the analytical expressions for the spectral intensity and spectral degree of coherence of focused spatially and spectrally partially coherent Hermite-Gaussian (H-G) pulsed beams are derived and used to study the spatial correlation properties in the focal region. It is shown that the spectral degree of coherence depends on the spatial correlation length, temporal coherence length and beam order. As the temporal coherence length decreases, the spectral degree of coherence decreases, whereas the temporal coherence length does not contribute to the spatial distribution of the spectral degree of coherence. An increase of the beam order results in an oscillatory behavior of the spectral degree of coherence, which becomes more prominent with the increase of beam order or the decrease of spatial correlation length.关键词
光谱相干度/部分光谱相干/时间相干长度Key words
spectral degree of coherence/spectrally partially coherent/temporal coherence lengths分类
数理科学引用本文复制引用
刘冬兵,程晋明,祁双喜,王婉丽,钱伟新..部分空间相干和部分光谱相干厄米-高斯脉冲光束的焦场的相干特性[J].物理学报,2012,61(24):244-250,7.基金项目
中国工程物理研究院科学技术发展基金（批准号：201180402006）资助的课题. （）
