Asymmetric out-of-plane power distribution in a two-dimensional photonic crystal nanocavity

Yasutomo Ota, Satoshi Iwamoto, Yasuhiko Arakawa

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Conventional air-bridge two-dimensional photonic crystal (2D-PhC) nanocavities emit light with an equal power distribution for upward and downward out-of-plane directions. Some applications, however, require concentration of the radiation in a preferred direction. In this Letter, we design a 2D-PhC nanocavity that radiates dominantly into one of the out-of-plane directions with a narrow far-field distribution. Our design is based on a conventional airbridge L3 photonic crystal nanocavity. The asymmetric out-of-plane power distribution is achieved solely by adding periodic shallow holes on the slab surface, which also function as a second-order grating for the directional beaming.

Original languageEnglish
Pages (from-to)3372-3375
Number of pages4
JournalOptics Letters
Issue number14
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Asymmetric out-of-plane power distribution in a two-dimensional photonic crystal nanocavity'. Together they form a unique fingerprint.

Cite this