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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 11 — Apr. 10, 2008
  • pp: 1729–1733

Vertical surface emitting open coupled-cavities based on photonic crystal surface modes

Deyin Zhao and Xunya Jiang  »View Author Affiliations


Applied Optics, Vol. 47, Issue 11, pp. 1729-1733 (2008)
http://dx.doi.org/10.1364/AO.47.001729


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Abstract

Two types of vertical surface emitting photonic crystal cavities based on beaming mechanism and coupled surface modes are studied. It is shown that vertical emission with a zero divergence angle and a high quality factor can be easily achieved by the back-to-back cavity design. The periodic modulation to the cavity surface alters nonradiative surface modes into radiative surface modes, and the constructive interference of the radiative waves gives rise to vertical emission and improves the quality of the output beam. A high quality factor can be attributed to the nonradiative surface mode on the cavity back whose small part of energy can be transferred into the cavity surface by coupling. The resonant property and the coupling efficiency of the cavities are investigated and optimal cavity configurations are obtained. These open coupled-cavities are good candidates of highly directional light sources.

© 2008 Optical Society of America

OCIS Codes
(240.6690) Optics at surfaces : Surface waves
(140.3945) Lasers and laser optics : Microcavities
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optics at Surfaces

History
Original Manuscript: November 15, 2007
Revised Manuscript: February 25, 2008
Manuscript Accepted: March 4, 2008
Published: April 4, 2008

Citation
Deyin Zhao and Xunya Jiang, "Vertical surface emitting open coupled-cavities based on photonic crystal surface modes," Appl. Opt. 47, 1729-1733 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-11-1729

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