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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 3 — Feb. 1, 2007
  • pp: 304–306

Single quantum dots for slow and fast light in a planar photonic crystal

V. S.C. Managa Rao and S. Hughes  »View Author Affiliations

Optics Letters, Vol. 32, Issue 3, pp. 304-306 (2007)

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We theoretically investigate slow and fast light propagation and pulse velocity control in a nanocavity containing a single quantum dot side-coupled to a planar-photonic-crystal waveguide. We demonstrate that low coupling strength (i.e., the weak coupling regime) between a cavity and a dot, under on-resonance condition, can lead to delays of about + 90 ps for a pulse 1 e -width of 280 ps . The group delay dependence on the various coupling parameters suggests achievable delays of + 300 ps and consequently very slow light speeds of around 5000 m s in a 1.5 μ m cavity-waveguide section. We also show that under off-resonant condition one can achieve significant pulse advancement of 60 ps .

© 2007 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(270.0270) Quantum optics : Quantum optics
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Quantum Optics

Original Manuscript: August 29, 2006
Revised Manuscript: October 26, 2006
Manuscript Accepted: October 27, 2006
Published: January 12, 2007

V. S. C. Manga Rao and S. Hughes, "Single quantum dots for slow and fast light in a planar photonic crystal," Opt. Lett. 32, 304-306 (2007)

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