Long-path formation in a deformed microdisk laser

Susumu Shinohara, Takehiro Fukushima, Satoshi Sunada, Takahisa Harayama, Kenichi Arai

Research output: Contribution to journalArticlepeer-review


An asymmetric resonant cavity can be used to form a path that is much longer than the cavity size. We demonstrate this capability for a deformed microdisk equipped with two linear waveguides, by constructing a multiply reflected periodic orbit that is confined by total internal reflection within the deformed microdisk and outcoupled by the two linear waveguides. Resonant mode analysis reveals that the modes corresponding to the periodic orbit are characterized by high-quality factors. From measured spectral and far-field data, we confirm that the fabricated devices can form a path about 9.3 times longer than the average diameter of the deformed microdisk.

Original languageEnglish
Article number013831
JournalPhysical Review A
Issue number1
Publication statusPublished - 2016 Jul 19

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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