Impulsive softening of coherent phonons in tellurium

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1995
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Hunsche, Stefan
Wienecke, K.
Kurz, Heinrich
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Physical Review Letters. 1995, 75(9), pp. 1815-1818. Available under: doi: 10.1103/PhysRevLett.75.1815
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We investigate the dynamics of coherent optical phonons in tellurium after high-density excitation with femtosecond laser pulses. The data show a continuous redshift of the phonon frequency with increasing excitation density. Experiments with double-pulse excitation prove that the observed frequency shift is of purely electronic origin. We demonstrate that coherent phonons allow monitoring the pathway to nonthermal laser-induced melting of crystalline materials.

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ISO 690HUNSCHE, Stefan, K. WIENECKE, Thomas DEKORSY, Heinrich KURZ, 1995. Impulsive softening of coherent phonons in tellurium. In: Physical Review Letters. 1995, 75(9), pp. 1815-1818. Available under: doi: 10.1103/PhysRevLett.75.1815
BibTex
@article{Hunsche1995Impul-4743,
  year={1995},
  doi={10.1103/PhysRevLett.75.1815},
  title={Impulsive softening of coherent phonons in tellurium},
  number={9},
  volume={75},
  journal={Physical Review Letters},
  pages={1815--1818},
  author={Hunsche, Stefan and Wienecke, K. and Dekorsy, Thomas and Kurz, Heinrich}
}
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