Impulsive softening of coherent phonons in tellurium
Impulsive softening of coherent phonons in tellurium
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1995
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Physical Review Letters ; 75 (1995), 9. - pp. 1815-1818
Abstract
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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530 Physics
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HUNSCHE, Stefan, K. WIENECKE, Thomas DEKORSY, Heinrich KURZ, 1995. Impulsive softening of coherent phonons in tellurium. In: Physical Review Letters. 75(9), pp. 1815-1818. Available under: doi: 10.1103/PhysRevLett.75.1815BibTex
@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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