Partially coherent flattened Gaussian beam and its paraxial propagation properties.
A simple model called partially coherent flattened Gaussian beam (FGB) is proposed to describe a partially coherent beam with a flat-topped spatial profile. An explicit and analytical formula is derived for the cross-spectral density of a partially coherent FGB propagating through a paraxial ABCD optical system. The propagation factor and propagation properties of a partially coherent FGB in free space are studied in detail and found to be closely related to its coherence and beam order.
Cai
Yangjian
Y
Joint Research Center of Photonics of the Royal Institute of Technology and Zhejiang University, Hangzhou, China. yangjian_cai@yahoo.com.cn
He
Sailing
S