Research ArticleAPPLIED PHYSICS

On-demand transfer of trapped photons on a chip

Science Advances  20 May 2016:
Vol. 2, no. 5, e1501690
DOI: 10.1126/sciadv.1501690

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Abstract

Photonic crystal nanocavities, which have modal volumes of the order of a cubic wavelength in the material, are of great interest as flexible platforms for manipulating photons. Recent developments in ultra-high quality factor nanocavities with long photon lifetimes have encouraged us to develop an ultra-compact and flexible photon manipulation technology where photons are trapped in networks of such nanocavities. The most fundamental requirement is the on-demand transfer of photons to and from the trapped states of arbitrary nanocavities. We experimentally demonstrate photon transfer between two nearly resonant nanocavities at arbitrary positions on a chip, triggered by the irradiation of a third nonresonant nanocavity using an optical control pulse. We obtain a high transfer efficiency of ~90% with a photon lifetime of ~200 ps.

Keywords
  • Physics
  • optics
  • photonic crystals
  • nanophotonics
  • nanocavities
  • photon transfer

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