期刊论文

Peng Run-Wu

英文

中国物理快报：英文版

0256-307X

2015

32

3

034201

10.1088/0256-307X/32/3/034201

Supported by Science and Technology Planning Project of Hunan Province under Grant No 2013SK3144, Scientific Research Fund of Hunan Provincial Education Department under Grant No 11A011, the Construct Program of Key Discipline in Hunan Province, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province in China.

本校为第一且通讯机构

We present intensity distributions of a supercontinuum laser passing through an apertured dispersion lens and find focal shift effects generated. The results show that, apart from the conventional negative focal shift, a positive focal shift also appears in the supercontinuum laser. The maximum intensity of the supercontinuum laser shifts toward the lens when the truncated parameter is small. However, it exceeds the focus of the central wavelength and a positive focal shift appears in the supercontinuum laser with large truncated parameter. Both of the maximum intensities shift away from the f...