| Issue |
J. Phys. Colloques
Volume 42, Number C6, Décembre 1981
International Conference on Phonon Physics
|
|
|---|---|---|
| Page(s) | C6-870 - C6-872 | |
| DOI | https://doi.org/10.1051/jphyscol:19816258 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-870-C6-872
DOI: 10.1051/jphyscol:19816258
1 University of Lancaster, U. K.
2 University of Lancaster, U.K.
J. Phys. Colloques 42 (1981) C6-870-C6-872
DOI: 10.1051/jphyscol:19816258
BACKWARD WAVE PHONON ECHOES AT 17 GHz IN SINGLE CRYSTALS OF LiTaO3, LiNbO3 AND Bi12SiO20
D.J. Meredith1, J.A. Pritchard2 et J.K. Wigmore21 University of Lancaster, U. K.
2 University of Lancaster, U.K.
Abstract
From measurements of the power and time dependence of ω- ω 2 pulse echoes at 17 GHz, we inferred that, at low powers, an intrinsic non-linearity γS2E2 was responsible for their generation in LiTaO3 and LiNbO3. However, this model could not explain either the high power data in these materials, or any of the results in Bi12SiO20.