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 |
|---|---|
| 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
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
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