期刊
OPTICS COMMUNICATIONS
卷 348, 期 -, 页码 90-94出版社
ELSEVIER
DOI: 10.1016/j.optcom.2015.03.011
关键词
Photonic crystals; Half adder; Logic gate; Self-collimated beam
类别
资金
- Chinese Specialized Research Fund for the Doctoral Program of Higher Education [20123218110017]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Chinese National Natural Science Foundation [61307052]
- Youth Funding for Science & Technology Innovation in NUAA [NS2014039]
We propose a novel all optical half adder composed of the logic gate XOR and AND which is based on the self-collimated beams in the two-dimensional photonic crystals. Our proposed structure is consisted of line defect acting as a splitter and the two output ports function as the SUM port and CARRY port. The electric field distribution is obtained by the Finite-difference time-domain method. Here, the logic state of 1 and 0 at output port are defined as the transmission is larger than 0.5 and less than 0.25, respectively. The design has the advantage of device compactness and valuable for photonic integration circuits application. (C) 2015 Elsevier B.V. All rights reserved.
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