2012
DOI: 10.1117/1.oe.51.4.045201
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Compact design of all-optical logic gates based on self-collimation phenomenon in two-dimensional photonic crystal

Abstract: Optical logic gates are a basic and fundamental component for optical networks and optical computing. The authors propose a structure for AND, NAND, XNOR, and NOR logic gates in two-dimensional photonic crystal, which utilizes dispersion-based self-collimation effect. The self-collimated beam is split by the line defect and interferes with other self-collimated beams. This interference may be constructive or destructive based on its phase difference. This phenomenon is employed to realize all optical logic gat… Show more

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Cited by 12 publications
(4 citation statements)
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References 22 publications
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“…The lattice constant is 301 nm and the host rod radius is 0.35 a . The 2D PhC lattice structure used for designing AND logic gate is taken from our previous work [17, 18] and it is depicted in Fig. 7.…”
Section: Phc and Logic Gatementioning
confidence: 99%
“…The lattice constant is 301 nm and the host rod radius is 0.35 a . The 2D PhC lattice structure used for designing AND logic gate is taken from our previous work [17, 18] and it is depicted in Fig. 7.…”
Section: Phc and Logic Gatementioning
confidence: 99%
“…According to The reported results show that the power of transmitted and reflected beams is identical, and the phase difference is π/2. The simulations performed by the FDTD method show that the structure acting as the XNOR gate has a contrast ratio of 5.2db Xavier et al (2012) [72].…”
Section: -8-7-"xnor" Gatementioning
confidence: 94%
“…Xavier et al (2012) [72] all-optical logic gates, including the XNOR gate, were introduced with the size of 10 10 mm   and contrast ratio of 6db.…”
Section: -8-7-"xnor" Gatementioning
confidence: 99%
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