期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 27, 期 2, 页码 323-327出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.27.000323
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资金
- Natural Science Foundation of Guangdong Province, China [07117866]
Characteristics of double-sided teeth-shaped nanoplasmonic waveguide filters are systematically investigated. It is found that the asymmetrical double-sided teeth-shaped waveguide structure can realize the function of a two-wavelength filter, and its two wavelengths are linear with the depths of the two-sided teeth, respectively. It is also found that a staggered double-sided teeth-shaped structure exahibits a wide and sharp bandgap. Double-sided teeth-shaped filters are of ultracompact size, in the length of a few hundred nanometers. The finite-difference time-domain method is employed in the simulations. Our results may open a way to construct nanoscale waveguide filters for high-density nanoplasmonic integration circuits. (C) 2010 Optical Society of America
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