Research

Absence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phonons


Reference:

Hussain, A. and Andrews, S. R., 2010. Absence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phonons. Physical Review B, 81 (22), 224304.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below. (Contact Author)

Official URL:

http://dx.doi.org/10.1103/PhysRevB.81.224304

Abstract

There have been several reports of phase-dependent noise in time-domain reflectivity studies of optical phonons excited by femtosecond laser pulses in semiconductors, semimetals, and superconductors. It was suggested that such behavior is associated with the creation of squeezed phonon states although there is no theoretical model that directly supports such a proposal. We have experimentally re-examined the studies of phonons in bismuth and gallium arsenide, and find no evidence of any phase-dependent noise signature associated with the phonons. We place an upper limit on any such noise at least 40-50 dB lower than previously reported.

Details

Item Type Articles
CreatorsHussain, A.and Andrews, S. R.
DOI10.1103/PhysRevB.81.224304
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code19541

Export

Actions (login required)

View Item