All-dielectric GaN microcavity: Strong coupling and lasing at room temperature

The strong light-matter coupling regime and lasing in a GaN microcavity fabricated by incorporating a high optical quality GaN membrane inside an all-dielectric mirror cavity is demonstrated at room temperature. A nonlinear increase of the emission and line narrowing marks the onset of polariton las...

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Bibliographic Details
Published in:Applied physics letters 2013-03, Vol.102 (10)
Main Authors: Daskalakis, K. S., Eldridge, P. S., Christmann, G., Trichas, E., Murray, R., Iliopoulos, E., Monroy, E., Pelekanos, N. T., Baumberg, J. J., Savvidis, P. G.
Format: Article
Language:English
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Summary:The strong light-matter coupling regime and lasing in a GaN microcavity fabricated by incorporating a high optical quality GaN membrane inside an all-dielectric mirror cavity is demonstrated at room temperature. A nonlinear increase of the emission and line narrowing marks the onset of polariton lasing regime with significantly reduced threshold compared with previous reports for bulk GaN microcavity. This combination of low lasing thresholds and ease of fabrication allows incorporation of quantum wells and electrical contacts into the active region, paving the way for electrically driven room temperature (RT) polariton laser devices.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4795019