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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 21155–21161

Ultra slow light achievement in photonic crystals by merging coupled cavities with waveguides

Kadir Üstün and Hamza Kurt  »View Author Affiliations


Optics Express, Vol. 18, Issue 20, pp. 21155-21161 (2010)
http://dx.doi.org/10.1364/OE.18.021155


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Abstract

We explore slow light behavior of a specially designed optical waveguide by carrying out structural dispersion using numerical techniques. The structure proposed is composed of square-lattice photonic crystal waveguide integrated with side-coupled cavities. We report three orders of magnitude reduction in group velocity at around υ g 0.0008 c with strongly suppressed group velocity dispersion. The analysis is performed by using both plane-wave expansion and finite-difference time-domain methods. For the first time, we succeeded to show such a low group velocity in photonic structures. Slow light pulse propagation accompanied by light tunneling between each cavity is observed. These achievements show the feasibility of photonic devices to generate extremely large group index which in turn will eventually pave the way to new frontiers in nonlinear optics, optical buffers and low threshold lasers.

© 2010 OSA

OCIS Codes
(250.5300) Optoelectronics : Photonic integrated circuits
(260.2030) Physical optics : Dispersion
(130.5296) Integrated optics : Photonic crystal waveguides

ToC Category:
Slow and Fast Light

History
Original Manuscript: June 8, 2010
Revised Manuscript: August 7, 2010
Manuscript Accepted: September 17, 2010
Published: September 22, 2010

Citation
Kadir Üstün and Hamza Kurt, "Ultra slow light achievement in photonic crystals by merging coupled cavities with waveguides," Opt. Express 18, 21155-21161 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-20-21155


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