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 |
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Pages (from-to) | 6371-6375 |
Number of pages | 5 |
Journal | Advanced Materials |
Volume | 27 |
Issue number | 41 |
DOIs | |
State | Published - 4 Nov 2015 |
Externally published | Yes |
Keywords
- ferroelectrics
- nonlinear optical properties
- terahertz modulators
- ultra-fast
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- General Materials Science