期刊论文

Wang You-Wen

英文

中国物理快报：英文版

0256-307X

2009

26

2

130-133

10.1088/0256-307X/26/2/024205

Supported by the National Natural Science Foundation of China under Grant Nos 10576012 and 60538010, and the National High Technology Research and Development Programme for Inertial Confinement Fusion of China under Grant No 2008AA8041705, and the Scientific Research Fund of Hunan Provincial Education Department under Grant No 08C176.

本校为其他机构

A nonlinear hot image is usually thought as of a special case of self-focusing,and thus occurs when a laser beam propagates through a slab of self-focusing medium.Here we show theoretically that a hot image may also be formed by a thin slab of self-defocusing medium.The physical origin for this hot image formation is akin to the in-line volume-phase holographic imaging due to the intensity-dependent refractive-index modulation of the self-defocusing medium.Numerical simulations confirm the theoretical prediction and further identify the dependence of the hot image on the beam power,the modulat...