title: Fine-tuned high-Q photonic-crystal nanocavity.
abstract: A photonic nanocavity with a high Q factor of 100,000 and a modal volume V of 0.71 cubic wavelengths, is demonstrated. According to the cavity design rule that we discovered recently, we further improve a point-defect cavity in a two-dimensional (2D) photonic crystal (PC) slab, where the arrangement of six air holes near the cavity edges is fine-tuned. We demonstrate that the measured Q factor for the designed cavity increases by a factor of 20 relative to that for a cavity without displaced air holes, while the calculated modal volume remains almost constant.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Akahane
authors.forename: Takashi
authors.initials: T
authors.lastname: Asano
authors.forename: Bong-Shik
authors.initials: BS
authors.lastname: Song
authors.forename: Susumu
authors.initials: S
authors.lastname: Noda