Spectroscopy of competing mechanisms generating stimulated emission in gallium nitride

W. D. Herzog*, G. E. Bunea, M. S. Ünlü, B. B. Goldberg, R. J. Molnar

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Two competing recombination mechanisms of stimulated emission in the vicinity of 145 K have been directly observed in the temperature dependence of the optical emission spectra for high-quality, unintentionally doped gallium nitride. Our analysis of the spectra indicates that exciton-exciton scattering is responsible for stimulated emission below 145 K, while at higher temperatures an electron-hole plasma becomes the dominant mechanism.

Original languageEnglish (US)
Pages (from-to)4145-4147
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number25
DOIs
StatePublished - Dec 18 2000

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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