Hypersound damping in vitreous silica measured by picosecond acoustics

Abstract

The attenuation of longitudinal acoustic phonons up to frequencies nearing 250 GHz is measured in vitreous silica with a picosecond optical technique. Taking advantage of interferences on the probe beam, difficulties encountered in early pioneering experiments are alleviated. Sound damping at 250 GHz and room temperature is consistent with relaxation dominated by anharmonic interactions with the thermal bath, extending optical Brillouin scattering data. Our result is at variance with claims of a recent deep-UV experiment which reported a rapid damping increase beyond 100 GHz. A comprehensive picture of the frequency dependence of sound attenuation in $v$-SiO${}_2$ can be proposed.

arXiv comment4 pages, 3 figures

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Cited by in corpus (15)

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• Scaling the Temperature-dependent Boson Peak of Vitreous Silica with the high-frequency Bulk Modulus derived from Brillouin Scattering Data
• Theory of harmonic dissipation in disordered solids
• Relaxation and vibrational properties in metal alloys and other disordered systems
• Correlation between vibrational anomalies and emergent anharmonicity of local potential energy landscape in metallic glasses
• Sound damping in glasses: interplay between anharmonicities and elastic heterogeneities
• Origin of micron-scale propagation lengths of heat-carrying acoustic excitations in amorphous silicon
• Impact of elastic heterogeneity on the propagation of vibrations at finite temperatures in glasses
• Anharmonic theory of superconductivity and its applications to emerging quantum materials
• Time-domain Brillouin scattering assisted by diffraction gratings
• Akhiezer Mechanism Dominates Relaxation of Propagons in Amorphous at Room Temperature
• Sound damping in frictionless granular materials: The interplay between configurational disorder and inelasticity
• Acoustic damping and dispersion in vitreous germanium oxide
• Suppression of Brillouin oscillation in transparent free-standing diamond thin films in picosecond ultrasound
• A continuum model reproducing the multiple frequency crossovers in acoustic attenuation in glasses