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

*Corresponding author for this work

Research output: Contribution to journalArticle

189 Scopus citations


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
Article number121915
JournalApplied Physics Letters
Issue number12
StatePublished - 3 Apr 2008

Fingerprint Dive into the research topics of 'Linear and nonlinear optical properties of BiFeO<sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this

    Kumar, A., Rai, R. C., Podraza, N. J., Denev, S., Ramirez, M., Chu, Y., Martin, L. W., Ihlefeld, J., Heeg, T., Schubert, J., Schlom, D. G., Orenstein, J., Ramesh, R., Collins, R. W., Musfeldt, J. L., & Gopalan, V. (2008). Linear and nonlinear optical properties of BiFeO3. Applied Physics Letters, 92(12), [121915].