2 MODIFIED Z-SCAN METHODS FOR DETERMINATION OF NONLINEAR-OPTICAL INDEX WITH ENHANCED SENSITIVITY

被引：29

作者：

TIAN, JG

ZANG, WP

ZHANG, GY

机构：

[1] Department of Physics, Nankai University, Tianjin

来源：

OPTICS COMMUNICATIONS | 1994年 / 107卷 / 5-6期

关键词：

D O I：

10.1016/0030-4018(94)90358-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two modified Z-scan methods, in which the far-field on-axis aperture in common Z-scan is replaced by an off-axis aperture and a circular board, are suggested for measurements of n2 with enhanced sensitivity. The calculated results show that with the increase of the distance from the off-axis aperture to the axis or the diameter of the circular board, the peak-valley normalised transmittance difference of Z-scan will increase rapidly. Also the Z-scan characteristics with a nonlinear absorption are analyzed.

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页码：415 / 419

页数：5

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