Raman line shape of the A 1 longitudinal optical phonon in GaN

L. Shi; Fernando Ponce; Jose Menendez

doi:10.1063/1.1737792

Raman line shape of the A ₁ longitudinal optical phonon in GaN

Physics

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Abstract

High-resolution Raman measurements of the A ₁ longitudinal optical (LO) phonon in GaN were performed. The studies showed a strong evidence that the observed discrepancies between time- and frequency-domain Raman measurements of the A ₁ LO phonon were due to the angular dispersion of the mode's frequency. The scattered wave vector direction in the Raman experiment fell within a solid angle that was determined by the collection optics. The true anharmonic broadening was extracted and its value was found to be in agreement with time-domain experiments.

Original language	English (US)
Pages (from-to)	3471-3473
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	18
DOIs	https://doi.org/10.1063/1.1737792
State	Published - May 3 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1737792

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title = "Raman line shape of the A 1 longitudinal optical phonon in GaN",

abstract = "High-resolution Raman measurements of the A 1 longitudinal optical (LO) phonon in GaN were performed. The studies showed a strong evidence that the observed discrepancies between time- and frequency-domain Raman measurements of the A 1 LO phonon were due to the angular dispersion of the mode's frequency. The scattered wave vector direction in the Raman experiment fell within a solid angle that was determined by the collection optics. The true anharmonic broadening was extracted and its value was found to be in agreement with time-domain experiments.",

author = "L. Shi and Fernando Ponce and Jose Menendez",

year = "2004",

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doi = "10.1063/1.1737792",

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journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Raman line shape of the A 1 longitudinal optical phonon in GaN

AU - Shi, L.

AU - Ponce, Fernando

AU - Menendez, Jose

PY - 2004/5/3

Y1 - 2004/5/3

N2 - High-resolution Raman measurements of the A 1 longitudinal optical (LO) phonon in GaN were performed. The studies showed a strong evidence that the observed discrepancies between time- and frequency-domain Raman measurements of the A 1 LO phonon were due to the angular dispersion of the mode's frequency. The scattered wave vector direction in the Raman experiment fell within a solid angle that was determined by the collection optics. The true anharmonic broadening was extracted and its value was found to be in agreement with time-domain experiments.

AB - High-resolution Raman measurements of the A 1 longitudinal optical (LO) phonon in GaN were performed. The studies showed a strong evidence that the observed discrepancies between time- and frequency-domain Raman measurements of the A 1 LO phonon were due to the angular dispersion of the mode's frequency. The scattered wave vector direction in the Raman experiment fell within a solid angle that was determined by the collection optics. The true anharmonic broadening was extracted and its value was found to be in agreement with time-domain experiments.

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U2 - 10.1063/1.1737792

DO - 10.1063/1.1737792

M3 - Article

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VL - 84

SP - 3471

EP - 3473

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

ER -

Raman line shape of the A ₁ longitudinal optical phonon in GaN

Abstract

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