Photonic Crystal Nanobeam Cavity Strongly Coupled to the Feeding Waveguide

Abstract

A deterministic design of an ultrahigh Q, wavelength scale mode volume photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>10^6 and on-resonance transmission T>90% are designed. The devices fabricated in Si and capped with low-index polymer, have Q=80,000 and T=73%. This is, to the best of our knowledge, the highest transmission measured in deterministically designed, wavelength scale high Q cavities.

References in corpus (1)

• High Quality factor photonic crystal nanobeam cavities

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