Thermal poling induced second-order nonlinearity in femtosecond-laser-modified fused silica

被引：9

作者：

An, Honglin ^{[1
]}

Fleming, Simon ^{[1
]}

McMillen, Benjamin W. ^{[2
]}

Chen, Kevin P. ^{[2
]}

Snoke, David ^{[3
]}

机构：

[1] Univ Sydney, Opt Fibre Technol Ctr, Eveleigh, NSW 1430, Australia

[2] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

[3] Univ Pittsburgh, Dept Phys, Pittsburgh, PA 15261 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 06期

基金：

澳大利亚研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1063/1.2973149

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thermal poling was utilized to induce second-order nonlinearity in regions of fused silica modified by 771 nm femtosecond laser pulses. With second-harmonic microscopy, it was found that the nonlinearity in the laser-modified region was much lower than that in nonmodified regions. This is attributed to a more rigid glass network after irradiation by the femtosecond laser pulses and/or lack of mobile alkali ions. Measurement of the distribution of chemical elements in the femtosecond-laser-modified region in a soda lime glass revealed a lower level of sodium ions. (C) 2008 American Institute of Physics.

引用

页数：3

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