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

Handle URI:
http://hdl.handle.net/10754/554108
Title:
Absence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phonons
Authors:
Hussain, A.; Andrews, S. R.
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.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Absence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phonons 2010, 81 (22) Physical Review B
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
17-Jun-2010
DOI:
10.1103/PhysRevB.81.224304
Type:
Article
ISSN:
1098-0121; 1550-235X
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevB.81.224304
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHussain, A.en
dc.contributor.authorAndrews, S. R.en
dc.date.accessioned2015-05-18T21:56:30Zen
dc.date.available2015-05-18T21:56:30Zen
dc.date.issued2010-06-17en
dc.identifier.citationAbsence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phonons 2010, 81 (22) Physical Review Ben
dc.identifier.issn1098-0121en
dc.identifier.issn1550-235Xen
dc.identifier.doi10.1103/PhysRevB.81.224304en
dc.identifier.urihttp://hdl.handle.net/10754/554108en
dc.description.abstractThere 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.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.81.224304en
dc.rightsArchived with thanks to Physical Review Ben
dc.titleAbsence of phase-dependent noise in time-domain reflectivity studies of impulsively excited phononsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, University of Bath, Bath BA2 7AY, United Kingdomen
kaust.authorHussain, Alien
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