Time-domain investigation of phonon-polaritons in GaP

J. Hebling, A. Stepanov, J. Seres, J. Kuhl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Impulsive simulated Raman scattering with fs optical pulses is applied to investigate the frequency dependence of phonon-polariton lifetimes in GaP. Three different frequency dependent decay channels are determined for polariton modes in the frequency range 335-364 cm-1 which can be attributed to anharmonic decay of the polariton into acoustic phonons (LA+TA) at the × and K points of the Brillouin zone. Besides one-phonon (TO and LO) excitations, we observe also two-phonon (2TA) contributions to the signal.

Original languageEnglish
Title of host publicationFerroelectrics
EditorsK. Kamaras
Pages99-105
Number of pages7
Volume249
Edition1-2
Publication statusPublished - 2001
Event4th International Conference on Low Energy Electrodynamics in Solids (LESS-4) - Pecs, Hungary
Duration: Jun 21 1999Jun 25 1999

Other

Other4th International Conference on Low Energy Electrodynamics in Solids (LESS-4)
CountryHungary
CityPecs
Period6/21/996/25/99

Fingerprint

Phonons
polaritons
Raman scattering
Laser pulses
Acoustics
decay
Brillouin zones
phonons
frequency ranges
Raman spectra
life (durability)
acoustics
pulses
excitation

Keywords

  • 42.65.C
  • 78.47
  • 78.90
  • Anharmonic phonon decay PACS: 78.30
  • GaP
  • ISRS
  • Phonon-polariton

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Hebling, J., Stepanov, A., Seres, J., & Kuhl, J. (2001). Time-domain investigation of phonon-polaritons in GaP. In K. Kamaras (Ed.), Ferroelectrics (1-2 ed., Vol. 249, pp. 99-105)

Time-domain investigation of phonon-polaritons in GaP. / Hebling, J.; Stepanov, A.; Seres, J.; Kuhl, J.

Ferroelectrics. ed. / K. Kamaras. Vol. 249 1-2. ed. 2001. p. 99-105.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hebling, J, Stepanov, A, Seres, J & Kuhl, J 2001, Time-domain investigation of phonon-polaritons in GaP. in K Kamaras (ed.), Ferroelectrics. 1-2 edn, vol. 249, pp. 99-105, 4th International Conference on Low Energy Electrodynamics in Solids (LESS-4), Pecs, Hungary, 6/21/99.
Hebling J, Stepanov A, Seres J, Kuhl J. Time-domain investigation of phonon-polaritons in GaP. In Kamaras K, editor, Ferroelectrics. 1-2 ed. Vol. 249. 2001. p. 99-105
Hebling, J. ; Stepanov, A. ; Seres, J. ; Kuhl, J. / Time-domain investigation of phonon-polaritons in GaP. Ferroelectrics. editor / K. Kamaras. Vol. 249 1-2. ed. 2001. pp. 99-105
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