Journal
OPTICS COMMUNICATIONS
Volume 356, Issue -, Pages 325-329Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2015.07.061
Keywords
Photonic crystals; Waveguide; Finite-difference time-domain method
Categories
Funding
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Fundamental Research Funds for the Central Universities [3092014012200]
- Chinese Specialized Research Fund for the Doctoral Program of Higher Education [20123218110017]
- Youth Funding for Science & Technology Innovation in NUAA [NS2014039]
- Chinese Natural Science Foundation [61307052]
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In the paper, a novel all optical half subtracter by two-dimensional photonic crystals is proposed. Based on the two light beams interference theory and self-collimation, a simple all optical half subtracter is simply realized and the electric field distribution is plotted by the finite-difference time-domain (FDTD) method, meanwhile, the higher light contrast ratio between logic state 1 and 0 is also obtained. The realization of the half subtracter is valuable in photonic device integration and compactness. (C) 2015 Elsevier B.V. All rights reserved.
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