Paraxial propagation of partially coherent Hermite–Gauss beams

✍ Scribed by Yunli Qiu; Hong Guo; Zhaoxi Chen

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 357 KB
• Volume: 245
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2004.10.032

✦ Synopsis

The paraxial propagation of partially coherent beams with the Hermite-Gauss modes is investigated. A more generalized and simple expression of the mean-squared width and the beam propagation ratio (M 2 ) of the beam with different mode order is obtained in terms of the cross-spectral density. Our results show that the higher order strengthens the variations of the mean-squared width and the beam propagation ratio for partially coherent beams, and the relation between the two parameters of partially coherent beams is independent of the coherence length.