Lasing of TM modes in a two-dimensional GaAs microlaser

Takehiro Fukushima, Susumu Shinohara, Satoshi Sunada, Takahisa Harayama, Koichiro Sakaguchi, Yasunori Tokuda

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We fabricated and tested an unstrained GaAs single-quantumwell microlaser which has a two-dimensional cavity shape known as the Penrose unilluminable room. The cavity exhibits quasi-one-dimensional modes, namely axial, diamond-shaped, and V-shaped modes. In contrast to previous observations of TE-polarized emission in GaAs microlasers, we observed TM-polarized emission. We explain this observation as being the result of lasing of the diamond-shaped modes whose incident angle at the cavity interface is very close to the Brewster angle.

Original languageEnglish
Pages (from-to)11912-11917
Number of pages6
JournalOptics Express
Issue number10
Publication statusPublished - 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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