JETP Letters

, Volume 89, Issue 3, pp 129–132 | Cite as

Investigation of coherent phonons in bismuth by femtosecond laser and X-ray pulse probing

  • A. A. Mel’nikov
  • O. V. Misochko
  • S. V. Chekalin
Condensed Matter

Abstract

Using femtosecond laser pulses, coordinated oscillations (coherent phonons) of Bi single-crystal atoms have been excited and recorded. The comparison with experimental results on the X-ray probing of coherent phonons at the same excitation energy density demonstrates that the observed lifetime and frequency shift of the oscillations are similar in both cases. Moreover, it has been revealed that the relaxation (incoherent) contributions are identical. This coincidence of the photoinduced response parameters indicates that probing in the visible spectrum correctly reflects the coherent dynamics of the Bi crystal lattice.

PACS numbers

63.20.-e 78.47.+p 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • A. A. Mel’nikov
    • 1
  • O. V. Misochko
    • 2
  • S. V. Chekalin
    • 1
  1. 1.Institute of SpectroscopyRussian Academy of SciencesTroitsk, Moscow regionRussia
  2. 2.Institute of Solid State PhysicsRussian Academy of SciencesChernogolovka, Moscow regionRussia

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