Hypersound damping in vitreous silica measured by picosecond acoustics

Details Hypersound damping in vitreous silica measured by picosecond acoustics Hypersound damping in vitreous silica measured by picosecond acoustics

2008-03-06

arxiv.org/abs/0803.0832v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.77.100201

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.

Affiliated with

Also associated with

No associations

Rating

Hypersound damping in vitreous silica measured by picosecond acoustics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hypersound damping in vitreous silica measured by picosecond acoustics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypersound damping in vitreous silica measured by picosecond acoustics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-13671