Related Experiment Video
Updated: Jul 19, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Partially coherent flattened Gaussian beam and its paraxial propagation properties
1Joint Research Center of Photonics of the Royal Institute of Technology and Zhejiang University, Hangzhou, China. yangjian_cai@yahoo.com.cn
Abstract:
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.
Related Concept Videos
Plane Electromagnetic Waves I
The EM field is assumed to be a...
Reflective Property of Parabolas
Gauss's Law: Cylindrical Symmetry
Gauss's Law
Gauss's Law: Planar Symmetry
Propagation of Waves
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...

