Ultrafast zone-center coherent lattice dynamics in ferroelectric lithium tantalate
Femtosecond time-resolved pump–probe experiments were carried out to study ultrafast lattice dynamics of ferroelectric lithium tantalate. Both the fully symmetric (A1 mode) and doubly degenerate (E mode) coherent phonons at the center of the Brillouin zone were excited via impulsive stimulated Raman...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2011-01-01
|
| Series: | Science and Technology of Advanced Materials |
| Online Access: | http://iopscience.iop.org/1468-6996/12/3/034409 |