Mode identification of high-quality-factor single-defect nanocavities in quantum dot-embedded photonic crystals

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dc.creatorShirane, Masayuki
dc.creatorKono, Shunsuke
dc.creatorUshida, Jun
dc.creatorOhkouchi, Shunsuke
dc.creatorIkeda, Naoki
dc.creatorSugimoto, Yoshimasa
dc.creatorTomita, Akihisa
dc.date2007-02-09
dc.date.accessioned2026-07-07T07:56:55Z
dc.date.available2026-07-07T07:56:55Z
dc.descriptionWe investigate the quality (Q) factor and the mode dispersion of single-defect nanocavities based on a triangular-lattice GaAs photonic-crystal (PC) membrane, which contain InAs quantum dots (QDs) as a broadband emitter. To obtain a high Q factor for the dipole mode, we modulate the radii and positions of the air holes surrounding the nanocavity while keeping six-fold symmetry. A maximum Q of 17,000 is experimentally demonstrated with a mode volume of V=0.39(lambda/n)^3. We obtain a Q/V of 44,000(n/lambda)^3, one of the highest values ever reported with QD-embedded PC nanocavities. We also observe ten cavity modes within the first photonic bandgap for the modulated structure. Their dispersion and polarization properties agree well with the numerical results.
dc.descriptionAccepted for publication in J. Appl. Phys
dc.identifierhttps://arxiv.org/abs/cond-mat/0702234
dc.identifierhttp://arxiv.org/abs/cond-mat/0702234
dc.identifierJ. Appl. Phys. 101, 073107 (2007)
dc.identifierdoi:10.1063/1.2714644
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/127490
dc.subjectMaterials Science
dc.titleMode identification of high-quality-factor single-defect nanocavities in quantum dot-embedded photonic crystals
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