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Conferences > QELS > 1996 > QThD > QThD6
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1996),
  • paper QThD6

Impulsive stimulated Raman excitation of coherent phonons in antimony

G. A. Garrett, T. F. Albrecht, J. T. Whitaker, and R. Merlin

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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

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