Journal
APPLIED PHYSICS LETTERS
Volume 76, Issue 10, Pages 1258-1260Publisher
AMER INST PHYSICS
DOI: 10.1063/1.126002
Keywords
-
Categories
Ask authors/readers for more resources
We have studied the effect of point defects on coherent optical phonons in ion-implanted bismuth polycrystalline films. Ultrafast dynamics of coherent phonons and photogenerated carriers in the femtosecond time domain have been investigated by means of pump-probe reflectivity measurements. The dephasing rate of the A(1g) phonon increases linearly with increasing ion dose, which is explained by the additional dephasing process of the coherent phonon originated from scattering of phonons by the defects. Carrier dynamics are also found to be affected by additional scattering process mediated by point defects. (C) 2000 American Institute of Physics. [S0003-6951(00)01710-1].
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available