| Literature DB >> 26389651 |
Frank Chen1,2, John Goodfellow1,3, Shi Liu4, Ilya Grinberg4, Matthias C Hoffmann5, Anoop R Damodaran6, Yi Zhu7, Peter Zalden1, Xiaohang Zhang8, Ichiro Takeuchi8, Andrew M Rappe4, Lane W Martin6,9, Haidan Wen7, Aaron M Lindenberg1,3,10.
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.Entities:
Keywords: ferroelectrics; nonlinear optical properties; terahertz modulators; ultra-fast
Year: 2015 PMID： 26389651 DOI： 10.1002/adma.201502975
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849