Low mode volume slotted photonic crystal single nanobeam cavity

Abstract

We present and experimentally demonstrate a slotted photonic crystal single nanobeam cavity in silicon. The slot geometry is exploited to achieve ultra-small effective mode volumes, ~0.025(λ/n)^3, more than an order of magnitude smaller than traditional nanobeam cavities. A continuous slot and a tapered photonic crystal design are implemented to achieve experimental quality factors near 10^4. This device structure offers a unique platform for achieving enhanced light-matter interactions and could be used to benefit a variety of applications including non-linear optics, cavity quantum electro-dynamics, sensing, optical modulation, and nano-optomechanics.

Accepted to Applied Physics Letters

References in corpus (3)

• High Quality factor photonic crystal nanobeam cavities
• Photonic Crystal Nanobeam Cavity Strongly Coupled to the Feeding Waveguide
• Optomechanics in an ultrahigh-Q slotted 2D photonic crystal cavity

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