Explanation of anomalous polariton dynamics in LiTaO3

Gary P. Wiederrecht; Thomas P. Dougherty; Lisa Dhar; Keith A. Nelson; D. E. Leaird; A. M. Weiner

doi:10.1103/PhysRevB.51.916

Explanation of anomalous polariton dynamics in LiTaO3

Gary P. Wiederrecht^*, Thomas P. Dougherty, Lisa Dhar, Keith A. Nelson, D. E. Leaird, A. M. Weiner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

Single and multiple-pulse impulsive stimulated Raman-scattering (ISRS) experiments are used to investigate the anomalously high damping rates of the lowest frequency A1 polariton in LiTaO3. The wave-vector dependence of the response reveals coupling of the polariton to a weakly Raman-active, low-frequency relaxational mode as well as to two underdamped modes of a different symmetry. Inclusion of the coupled modes yields quantitative agreement between the results and the predictions of a previously developed theory for light scattering from polaritons.

Original language	English (US)
Pages (from-to)	916-931
Number of pages	16
Journal	Physical Review B
Volume	51
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.51.916
State	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "Explanation of anomalous polariton dynamics in LiTaO3",

abstract = "Single and multiple-pulse impulsive stimulated Raman-scattering (ISRS) experiments are used to investigate the anomalously high damping rates of the lowest frequency A1 polariton in LiTaO3. The wave-vector dependence of the response reveals coupling of the polariton to a weakly Raman-active, low-frequency relaxational mode as well as to two underdamped modes of a different symmetry. Inclusion of the coupled modes yields quantitative agreement between the results and the predictions of a previously developed theory for light scattering from polaritons.",

author = "Wiederrecht, {Gary P.} and Dougherty, {Thomas P.} and Lisa Dhar and Nelson, {Keith A.} and Leaird, {D. E.} and Weiner, {A. M.}",

year = "1995",

doi = "10.1103/PhysRevB.51.916",

language = "English (US)",

volume = "51",

pages = "916--931",

journal = "Physical Review B",

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T1 - Explanation of anomalous polariton dynamics in LiTaO3

AU - Wiederrecht, Gary P.

AU - Dougherty, Thomas P.

AU - Dhar, Lisa

AU - Nelson, Keith A.

AU - Leaird, D. E.

AU - Weiner, A. M.

PY - 1995

Y1 - 1995

N2 - Single and multiple-pulse impulsive stimulated Raman-scattering (ISRS) experiments are used to investigate the anomalously high damping rates of the lowest frequency A1 polariton in LiTaO3. The wave-vector dependence of the response reveals coupling of the polariton to a weakly Raman-active, low-frequency relaxational mode as well as to two underdamped modes of a different symmetry. Inclusion of the coupled modes yields quantitative agreement between the results and the predictions of a previously developed theory for light scattering from polaritons.

AB - Single and multiple-pulse impulsive stimulated Raman-scattering (ISRS) experiments are used to investigate the anomalously high damping rates of the lowest frequency A1 polariton in LiTaO3. The wave-vector dependence of the response reveals coupling of the polariton to a weakly Raman-active, low-frequency relaxational mode as well as to two underdamped modes of a different symmetry. Inclusion of the coupled modes yields quantitative agreement between the results and the predictions of a previously developed theory for light scattering from polaritons.

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DO - 10.1103/PhysRevB.51.916

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JO - Physical Review B

JF - Physical Review B

IS - 2

ER -

Explanation of anomalous polariton dynamics in LiTaO3

Abstract

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