Abstract
The excitation of coherent phonons in semimetals with femtosecond laser pulses has recently been investigated by several groups and accounted for by an excitation mechanism called displacive excitation of coherent phonons (DECP). DECP is considered to be different from conventional Raman processes in that it only launches fully symmetric A-phonons and that these oscillations have a cosine behavior rather than the sine behavior that is expected for impulsive stimulated raman scattering (ISRS).
© 1996 Optical Society of America
PDF ArticleMore Like This
Y. Liu, A. Frenkel, J. F. Whitaker, R. Merlin, and C. Uher
MD.3 International Conference on Ultrafast Phenomena (UP) 1994
A.M. Weiner, D.E. Leaird, G.P. Wiederrecht, and K.A. Nelson
ThD2 International Conference on Ultrafast Phenomena (UP) 1990
K. J. Yee, D. S. Kim, and Y. S. Lim
MF56 International Conference on Ultrafast Phenomena (UP) 2000