TRANSIENT MULTIPLE DIFFRACTION RINGS INDUCED BY ULTRAFAST LASER FROM CHINESE TEA

被引：22

作者：

HE, KX

ABELELDAYEM, H

SEKHAR, PC

VENKATESWARLU, P

GEORGE, MC

机构：

[1] Department of Physics, Alabama A and M University, Normal

来源：

OPTICS COMMUNICATIONS | 1991年 / 81卷 / 1-2期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

Laser Beams;

D O I：

10.1016/0030-4018(91)90303-U

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Transient multiple diffraction rings associated with self-defocusing from chinese tea solution in ethanol are observed during the time of laser "turn on". A second harmonic of cw mode-locked Nd:YAG laser was used. The phenomenon is shown to be the result of laser induced refractive-index change. Diffraction ring patterns under different conditions are compared. The dependence of ultrafast laser induced fluorescence on the polarization of laser beams is also observed. A tentative explanation is given.

引用

页码：101 / 105

页数：5

共 9 条

[1]

ABDELDAYEM H, IN PRESS OPTICS PHOT

[2] THERMALLY SELF-INDUCED PHASE MODULATION OF LASER BEAMS [J].