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  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CK_9_4

Nanocavity Formation with a Q of a Half-million using Photonic Crystal Waveguide and Nanofiber

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Abstract

A photonic crystal (PhC) nanocavity is a prominent candidate for use in quantum optics because of its high quality (Q) factor and extremely small mode volume [1]. Dynamic cavity formation and resonant wavelength tunability are desired for various applications including quantum optics and classical switching devices. Recently, a reconfigurable nanocavity is demonstrated whose resonant wavelength and position were tuned by bringing a nanofiber into contact with a PhC waveguide [2]. However, the Q was limited to about 104 because the material was made of InP. In order to demonstrate the high-Q potential of this scheme, we demonstrate cavity formation using silicon slab with a SiO2 nanofiber. In this study we show that a high Q of 5.1×105 is possible when we use a silicon PhC waveguide.

© 2015 IEEE

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