Phonon Spectroscopy with Chirped Shear and Compressive Acoustic Pulses.
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DOI: 10.1103/physrevlett.119.255502
Abstract: Picosecond duration compressive and shear phonon wave packets injected into (311) GaAs slabs transform after propagation through ∼1 mm into chirped acoustic pulses with a frequency increasing in time due to phonon dispersion. By probing the… read more here.
Keywords: phonon; spectroscopy chirped; chirped shear; spectroscopy ... See more keywords