Nanowire coupling to photonic crystal nanocavities for single photon sources | Zendy

Christian Grillet | Zendy; Christelle Monat | Zendy; Cameron L. C. Smith | Zendy; Benjamin J. Eggleton | Zendy; David Moss | Zendy; Simon Frédérick | Zendy; Dan Dalacu | Zendy; Philip J. Poole | Zendy; J. Lapointe | Zendy; G. C. Aers | Zendy; Robin L. Williams | Zendy

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Nanowire coupling to photonic crystal nanocavities for single photon sources

Author(s) -

Christian Grillet,

Christelle Monat,

Cameron L. C. Smith,

Benjamin J. Eggleton,

David Moss,

Simon Frédérick,

Dan Dalacu,

Philip J. Poole,

J. Lapointe,

G. C. Aers,

Robin L. Williams

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.001267

Subject(s) - photonic crystal , nanowire , quantum dot , single photon source , photon , coupling (piping) , optoelectronics , q factor , resonance (particle physics) , optics , materials science , photonics , spontaneous emission , purcell effect , cavity quantum electrodynamics , wavelength , nanophotonics , physics , quantum , laser , resonator , atomic physics , quantum mechanics , open quantum system , metallurgy

We demonstrate highly efficient evanescent coupling via a silica loop-nanowire, to ultra-small (0.5 (lambda/n)(3) ), InAs/InP quantum dot photonic crystal cavities, specifically designed for single photon source applications. This coupling technique enables the tuning of both the Q-factor and the wavelength of the cavity mode independently, which is highly relevant for single photon source applications. First, this allows for the optimization of the extraction efficiency while maintaining a high Purcell factor. Second, the cavity mode can be matched with a spectrally misaligned quantum dot without changing the structure or degrading the Q-factor: a 3 nm resonance shift is reported.

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