Analysis of photonic logic gates based on single hexagonal-lattice photonic crystal ring resonator

Jiang, Junzhen; Qiang, Zexuan; Xu, Xiaofu; Chen, Xiyao

doi:doi:10.1117/1.3619818

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Journal of Nanophotonics / Volume 5 / Research Papers

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Analysis of photonic logic gates based on single hexagonal-lattice photonic crystal ring resonator

J. Nanophoton. 5, 053519 (Aug 10, 2011); http://dx.doi.org/10.1117/1.3619818

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Abstract

References (19)

Junzhen Jiang, Zexuan Qiang, and Xiaofu Xu

Fujian Normal University, Institute of Laser and Optoelectronics Technology, Fujian Provincial Key Laboratory for Photonics Technology, Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fuzhou, 350007, China

Xiyao Chen

Minjiang University, Department of Physics and Electronic Information Engineering, Fuzhou, 350108, China

We devised a new configuration of optical logic gates based on a single hexagonal-lattice photonic crystal ring resonator (PCRR) composed of two-dimensional (2D) cylindrical silicon rods in air. The modal behavior of the proposed logic gates was comprehensively analyzed with a topology optimization technique based on the principle of beam interference and perturbation theory. It was then numerically verified by using a 2D finite-difference time-domain technique. The predictions have a very good agreement with the numerical results. This new single PCRR can really function as NOT and NOR gates. And the logic “0” and “1” of the hexagonal ring can be defined as less than 8% and greater than 86%, respectively, much better than earlier reported square-lattice results.

History

Received May 04, 2011
Accepted Jul 12, 2011
Revised Jul 10, 2011
Published online Aug 10, 2011

Digital Object Identifier

http://dx.doi.org/10.1117/1.3619818

Citation

Junzhen Jiang, Zexuan Qiang, Xiaofu Xu and Xiyao Chen, "Analysis of photonic logic gates based on single hexagonal-lattice photonic crystal ring resonator", J. Nanophoton. 5, 053519 (Aug 10, 2011); http://dx.doi.org/10.1117/1.3619818