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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 14 — Jul. 15, 2008
  • pp: 1587–1589

Numerical study of exact Purcell factors in finite-size planar photonic crystal waveguides

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


Optics Letters, Vol. 33, Issue 14, pp. 1587-1589 (2008)
http://dx.doi.org/10.1364/OL.33.001587


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Abstract

The waveguide-length sensitivity on modified spontaneous emission in finite-size planar photonic crystal (PC) waveguides is investigated by numerically computing the exact Purcell (enhanced emission) factor. An unusual dependence on the number of waveguide unit cells and on the waveguide facet truncation is found, allowing one to nanoengineer large Purcell factors in excess of several hundred. Besides having important applications for single-photon sources, these results offer physical insight into the nature of light–matter interactions in miniaturized finite-size PC waveguides, where periodic Bloch-wave analysis breaks down.

© 2008 Optical Society of America

OCIS Codes
(130.5296) Integrated optics : Photonic crystal waveguides
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Quantum Optics

History
Original Manuscript: April 4, 2008
Revised Manuscript: May 29, 2008
Manuscript Accepted: June 1, 2008
Published: July 11, 2008

Citation
V. S. C. Manga Rao and S. Hughes, "Numerical study of exact Purcell factors in finite-size planar photonic crystal waveguides," Opt. Lett. 33, 1587-1589 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-14-1587

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