Optical limiting in SrBi2Ta2O9 and PbZrxTi1-xO3 ferroelectric thin films

被引：52

作者：

Yang, PX ^{[1
]}

Xu, JF

Ballato, J

Schwartz, RW

Carroll, DL

机构：

[1] Clemson Univ, Dept Phys & Astron, Ctr Opt Mat Sci & Engn Technol, Clemson, SC 29634 USA

[2] Clemson Univ, Sch Mat Sci & Engn, Ctr Opt Mat Sci & Engn Technol, Clemson, SC 29634 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 18期

关键词：

D O I：

10.1063/1.1477618

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Optical limiting effects in SrBi2Ta2O9 (SBT) and PbZrxTi1-xO3 (PZT) ferroelectric thin films have been observed with nanosecond laser pulses at 1.064 mum. Limiting thresholds were found to be 5.84 J/cm(2) for SBT and between 4.53 and 5.93 J/cm(2) for PZT, depending on composition, whereas saturation thresholds for the films were about 2.92 J/cm(2) and between 2.27 J/cm2 to 2.97 J/cm(2), respectively. Damage thresholds around 10.0 J/cm(2) and between 10.37 J/cm(2) to 10.54 J/cm(2), respectively for SBT and PZT, were also determined. A possible mechanism for the observed limiting, nonlinear optical scattering from the ferroelectric domains, is discussed. These results elucidate the origin of the nonlinear optical properties in perovskite-type ferroelectric thin films and show the potential role such materials can play in photonic devices based on nonlinear optical effects. (C) 2002 American Institute of Physics.

引用

页码：3394 / 3396

页数：3

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