Share Email Print
cover

Proceedings Paper

Evolution of phase singularities of Gaussian beams passing through an astigmatic aperture lens
Author(s): Yongtao Zhang; Chaoliang Ding; Ziguo Zhao; Liuzhan Pan
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The phase singularities of Gaussian beams propagating through an astigmatic aperture lens are studied. Numerical calculation results are given to illustrate how the astigmatism affects the evolution behavior of phase singularities. It is shown that with increasing astigmatic coefficient, the phase singularities shift not only towards the aperture lens, but also towards the z axis. The reorganization process of phase singularities of focused Gaussian beams in the presence of astigmatism with increasing truncation parameter is illustrated by numerical examples.

Paper Details

Date Published: 19 August 2011
PDF: 10 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 819212 (19 August 2011); doi: 10.1117/12.899569
Show Author Affiliations
Yongtao Zhang, Luoyang Normal College (China)
Chaoliang Ding, Luoyang Normal College (China)
Ziguo Zhao, Luoyang Normal College (China)
Liuzhan Pan, Luoyang Normal College (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

© SPIE. Terms of Use
Back to Top