GaN microwires as optical microcavities: Whispering gallery modes Vs Fabry-Perot modes

Pierre Marie Coulon, Maxime Hugues, Blandine Alloing, Emmanuel Beraudo, Mathieu Leroux, Jesus Zuniga-Perez

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

GaN microwires grown by metalorganic vapour phase epitaxy and with radii typically on the order of 1-5 micrometers exhibit a number of resonances in their photoluminescence spectra. These resonances include whispering gallery modes and transverse Fabry-Perot modes. A detailed spectroscopic study by polarization-resolved microphotoluminescencein combination with electron microscopy imageshas enabled to differentiate both kinds of modes and determined their main spectral properties. Finallythe dispersion of the ordinary and extraordinary refractive indices of strain-free GaN in the visible-UV range has been obtained thanks to the numerical simulation of the observed modes.

Original languageEnglish
Pages (from-to)18707-18716
Number of pages10
JournalOptics Express
Volume20
Issue number17
DOIs
Publication statusPublished - 1 Aug 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'GaN microwires as optical microcavities: Whispering gallery modes Vs Fabry-Perot modes'. Together they form a unique fingerprint.

Cite this