Linear and nonlinear optical properties of BiFeO3

被引：218

作者：

Kumar, Amit ^{[1
]}

Rai, Ram C. ^{[2
]}

Podraza, Nikolas J. ^{[1
]}

Denev, Sava ^{[1
]}

Ramirez, Mariola ^{[1
]}

Chu, Ying-Hao ^{[3
]}

Martin, Lane W. ^{[3
]}

Ihlefeld, Jon ^{[1
]}

Heeg, T. ^{[4
]}

Schubert, J. ^{[4
]}

Schlom, Darrell G. ^{[1
]}

Orenstein, J. ^{[5
]}

Ramesh, R. ^{[3
]}

Collins, Robert W. ^{[6
]}

Musfeldt, Janice L. ^{[2
]}

Gopalan, Venkatraman ^{[1
]}

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[2] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[3] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[4] Inst Bio & Nano Syst, Res Ctr Julich, D-52425 Julich, Germany

[5] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[6] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2901168

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using spectroscopic ellipsometry, the room temperature refractive index and absorption versus wavelength of the ferroelectric antiferromagnet bismuth ferrite, BiFeO3, are reported. The material has a direct band gap at 442 nm wavelength (2.81 eV). Using optical second harmonic generation, the nonlinear optical coefficients were determined to be d(15)/d(22)=0.20 +/- 0.01, d(31)/d(22) = 0.35 +/- 0.02, d(33)/d(22)=-11.4 +/- 0.20, and vertical bar d(22)vertical bar = 298.4 +/- 6.1 pm/V at a fundamental wavelength of 800 nm. (C) 2008 American Institute of Physics.

引用

页数：3

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