FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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High-Resolution Compact Plasmonic Wavelength Demultiplexers Based on Cascading Square Resonators |
CHEN Zhao, YU Li**, WANG Lu-Lu, ZHAO Yu-Fang, DUAN Gao-Yan, XIAO Jing-Hua |
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876 School of Science, Beijing University of Posts and Telecommunications, Beijing 100876
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Cite this article: |
CHEN Zhao, YU Li, WANG Lu-Lu et al 2013 Chin. Phys. Lett. 30 054212 |
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Abstract A compact high-resolution structure for plasmonic wavelength demultiplexers with cascading square resonators is proposed and demonstrated numerically by using the two-dimensional finite element method. It is found that the full width at half maximum of the transmission spectrum can be narrower (~10 nm) than any results reported before. The simulation results can be explained by the temporal coupled-mode theory. This structure can be easily extended to 1×N channels, which has an important role in the wavelength division multiplexing system in nanoscale.
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Received: 29 January 2013
Published: 31 May 2013
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PACS: |
42.82.Et
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(Waveguides, couplers, and arrays)
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42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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52.40.Hf
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(Plasma-material interactions; boundary layer effects)
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52.25.-b
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(Plasma properties)
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Abstract
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