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PHONON PULSES FRQM A RELAXING SYSTEM
1981
Le Journal de Physique Colloques
Preserved Fulltext
The spread of polychromatic phonon pulses, following optical absorption by a defect, is calculated up to %lo2 lattice-spacings far. Phonon dispersion attenuates the pulse. The angular variation of the pulse peak position reflects the spectral anisotropy.
doi:10.1051/jphyscol:1981669
fatcat:ekmagcfksbhrdi5rbe74mr4ave