Ultrafast Terahertz Gating of the Polarization and Giant Nonlinear Optical Response in BiFeO sub(3) Thin Films

Ultrafast Terahertz Gating of the Polarization and Giant Nonlinear Optical Response in BiFeO sub(3) Thin Films

Terahertz pulses are applied as an all-optical bias to ferroelectric thin-film BiFeO sub(3) 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 rati...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Weinheim) 2015-11, Vol.27 (41), p.6371-6375
Hauptverfasser: Chen, Frank, Goodfellow, John, Liu, Shi, Grinberg, Ilya, Hoffmann, Matthias C, Damodaran, Anoop R, Zhu, Yi, Zalden, Peter, Zhang, Xiaohang, Takeuchi, Ichiro, Rappe, Andrew M, Martin, Lane W, Wen, Haidan, Lindenberg, Aaron M
Format: Artikel
Sprache:eng
Schlagworte:
Femtosecond
Ferroelectric materials
Ferroelectricity
Gating and risering
Modulation
Monitoring
Nonlinearity
Polarization
Thin films
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Terahertz pulses are applied as an all-optical bias to ferroelectric thin-film BiFeO sub(3) 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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201502975