Optical bistable switching action of Si high-Q photonic-crystal nanocavities

Masaya Notomi, Akihiko Shinya, Satoshi Mitsugi, Goh Kira, Eiichi Kuramochi, Takasumi Tanabe

Research output: Contribution to journalArticlepeer-review

466 Citations (Scopus)


We have demonstrated all-optical bistable switching operation of resonant-tunnelling devices with ultra-small high-Q Si photonic-crystal nanocavities. Due to their high Q/V ratio, the switching energy is extremely small in comparison with that of conventional devices using the same optical nonlinear mechanism. We also show that they exhibit all-optical-transistor action by using two resonant modes. These ultrasmall unique nonlinear bistable devices have potentials to function as various signal processing functions in photonic-crystal-based optical-circuits.

Original languageEnglish
Pages (from-to)2678-2687
Number of pages10
JournalOptics Express
Issue number7
Publication statusPublished - 2005 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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