Picosecond Z-scan study of bound electronic Kerr effect in LiNbO3 crystal associated with two-photon absorption

被引：0

作者：

Heping Li

Feng Zhou

Xuejun Zhang

Wei Ji

机构：

[1] Division of Physics,

[2] School of Science,undefined

[3] Nanyang Technological University,undefined

[4] 469 Bukit Timah Road,undefined

[5] Singapore 259756 (Fax: +65-469 8928,undefined

[6] E-mail: zhouf@nievax.nie.ac.sg),undefined

[7] Department of Physics,undefined

[8] National University of Singapore,undefined

[9] Lower Kent Ridge Road,undefined

[10] Singapore 119260,undefined

来源：

Applied Physics B | 1997年 / 64卷

关键词：

PACS: 42.65; 42.70; 42.10;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

crystal have been measured using Z-scan technique with picosecond pulses at 532 nm. The nonlinear absorption coefficient and nonlinear refractive index are determined to be 2.5×10-10 cm/W and 5.3×10-15 cm2/W, respectively. Both sign and magnitude of the measured refractive nonlinearity are considerably different from the reported Z-scan results in LiNbO3 obtained with cw laser beam at 514 nm. The nonlinearities in LiNbO3 induced by 532 nm picosecond pulses are believed to be mainly due to two-photon absorption and bound electronic Kerr effect associated with the two-photon absorption.

引用

页码：659 / 662

页数：3

共 44 条

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