Ultrafast Terahertz Gating of the Polarization and Giant Nonlinear Optical Response in BiFeO3 Thin Films

Frank Chen; John Goodfellow; Shi Liu; Ilya Grinberg; Matthias C. Hoffmann; Anoop R. Damodaran; Yi Zhu; Peter Zalden; Xiaohang Zhang; Ichiro Takeuchi; Andrew M. Rappe; Lane W. Martin; Haidan Wen; Aaron M. Lindenberg

doi:10.1002/adma.201502975

Ultrafast Terahertz Gating of the Polarization and Giant Nonlinear Optical Response in BiFeO₃ Thin Films

Frank Chen, John Goodfellow, Shi Liu, Ilya Grinberg, Matthias C. Hoffmann, Anoop R. Damodaran, Yi Zhu, Peter Zalden, Xiaohang Zhang, Ichiro Takeuchi, Andrew M. Rappe, Lane W. Martin, Haidan Wen, Aaron M. Lindenberg

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Terahertz pulses are applied as an all-optical bias to ferroelectric thin-film BiFeO₃ while monitoring the time-dependent ferroelectric polarization through its nonlinear optical response. Modulations in the intensity of the second harmonic light generated by the film correspond to on-off ratios of 220× gateable on femtosecond timescales. Polarization modulations comparable to the built-in static polarization are observed.

Original language	English (US)
Pages (from-to)	6371-6375
Number of pages	5
Journal	Advanced Materials
Volume	27
Issue number	41
DOIs	https://doi.org/10.1002/adma.201502975
State	Published - Nov 1 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

ferroelectrics
nonlinear optical properties
terahertz modulators
ultra-fast

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10.1002/adma.201502975

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Chen, F., Goodfellow, J., Liu, S., Grinberg, I., Hoffmann, M. C., Damodaran, A. R., Zhu, Y., Zalden, P., Zhang, X., Takeuchi, I., Rappe, A. M., Martin, L. W., Wen, H., & Lindenberg, A. M. (2015). Ultrafast Terahertz Gating of the Polarization and Giant Nonlinear Optical Response in BiFeO₃ Thin Films. Advanced Materials, 27(41), 6371-6375. https://doi.org/10.1002/adma.201502975

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AU - Damodaran, Anoop R.

AU - Zhu, Yi

AU - Zalden, Peter

AU - Zhang, Xiaohang

AU - Takeuchi, Ichiro

AU - Rappe, Andrew M.

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AU - Wen, Haidan

AU - Lindenberg, Aaron M.

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