Linear and nonlinear optical properties of BiFeO3

Amit Kumar, Ram C. Rai, Nikolas J. Podraza, Sava Denev, Mariola Ramirez, Ying Hao Chu, Lane W. Martin, Jon Ihlefeld, T. Heeg, J. Schubert, Darrell G. Schlom, J. Orenstein, R. Ramesh, Robert W. Collins, Janice L. Musfeldt, Venkatraman Gopalan

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191 Scopus citations

Abstract

Using spectroscopic ellipsometry, the room temperature refractive index and absorption versus wavelength of the ferroelectric antiferromagnet bismuth ferrite, BiFe O3, 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 d15 d22 =0.20±0.01, d31 d22 =0.35±0.02, d33 d22 =-11.4±0.20, and ∫ d22 ∫ =298.4±6.1 pmV at a fundamental wavelength of 800 nm.

Original languageEnglish (US)
Article number121915
JournalApplied Physics Letters
Volume92
Issue number12
DOIs
StatePublished - Apr 3 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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