High-frequency coherent phonons in Ar+-implanted graphite have been investigated with a 7.5 fs Ti:sapphire laser and electro-optic sampling method. Coherent oscillations of G- and D-modes are clearly observed with time-dependent frequency-shifts.
© 2010 OSA
I. Katayama, S. Koga, T. Shimada, K. Kato, S. Hishita, D. Fujita, J. Takeda, and M. Kitajima, "Dynamics of Coherent Phonons in Disordered Graphite," in International Conference on Ultrafast Phenomena, OSA Technical Digest (CD) (Optical Society of America, 2010), paper TuE42.
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