Research Papers

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

[+] Author Affiliations
Junzhen Jiang

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

Zexuan Qiang

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

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

J. Nanophoton. 5(1), 053519 (August 10, 2011). doi:10.1117/1.3619818
History: Received May 04, 2011; Revised July 10, 2011; Accepted July 12, 2011; Published August 10, 2011; Online August 10, 2011
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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.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

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(1), 053519 (August 10, 2011). ; http://dx.doi.org/10.1117/1.3619818


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