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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 2 — Feb. 1, 2011
  • pp: 265–274

High-Q photonic crystal slab nanocavity with an asymmetric nanohole in the center for QED

Yanjun Song, Mingkai Liu, Yanbing Zhang, Xuehua Wang, and Chongjun Jin  »View Author Affiliations


JOSA B, Vol. 28, Issue 2, pp. 265-274 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000265


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Abstract

We present a new approach which allows one to insert a silica nanosphere with a single quantum dot into a high Q photonic crystal slab nanocavity with an asymmetric nanohole in the center. The high Q cavity is optimized by adjusting air holes around the L3-type cavity based on three-dimensional finite-difference time-domain simulation. High Q value of 48 700 in this asymmetric cavity is achieved. The performance of the cavity with an assumed silica sphere containing a single quantum dot in the nanohole is also discussed, in which the Q factor can reach 5 × 10 4 and modal volume V is 0.048 μm 3 ( 0.62 ( λ 0 / n ) 3 ). It is found that the electric field intensity in the nanohole is much stronger than the maximum electric field in the cavity without a nanohole. This makes it possible to locate the precise position of the quantum dot with respect to the cavity mode electric maximum. This system provides a good candidate for realizing a strong interaction between a quantum dot and cavity for the study of cavity quantum electrodynamics.

© 2011 Optical Society of America

OCIS Codes
(270.5580) Quantum optics : Quantum electrodynamics
(140.3948) Lasers and laser optics : Microcavity devices
(230.5298) Optical devices : Photonic crystals

ToC Category:
Quantum Optics

History
Original Manuscript: July 6, 2010
Revised Manuscript: October 18, 2010
Manuscript Accepted: November 7, 2010
Published: January 13, 2011

Citation
Yanjun Song, Mingkai Liu, Yanbing Zhang, Xuehua Wang, and Chongjun Jin, "High-Q photonic crystal slab nanocavity with an asymmetric nanohole in the center for QED," J. Opt. Soc. Am. B 28, 265-274 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-2-265

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