Optically pumped GaN vertical cavity surface emitting laser with high index-contrast nanoporous distributed Bragg reflector

Seung Min Lee, Su-Hyun Gong, Jin Ho Kang, Mohamed Ebaid, Sang Wan Ryu, Yong Hoon Cho

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Laser operation of a GaN vertical cavity surface emitting laser (VCSEL) is demonstrated under optical pumping with a nanoporous distributed Bragg reflector (DBR). High reflectivity, approaching 100%, is obtained due to the high index-contrast of the nanoporous DBR. The VCSEL system exhibits low threshold power density due to the formation of high Q-factor cavity, which shows the potential of nanoporous medium for optical devices.

Original languageEnglish
Pages (from-to)11023-11030
Number of pages8
JournalOptics Express
Volume23
Issue number9
DOIs
Publication statusPublished - 2015 May 4
Externally publishedYes

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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