Analysis of dispersions of coupled asymmetric subwavelength-diameter wires
Optik(2014)
摘要
We propose a novel waveguide based on a structure of coupled asymmetric subwavelength-diameter wires to realize a high negative dispersion. The waveguide consists of an optical nanofiber and a GaAs nanowire. The properties of the supermodes are calculated using finite elements method. The results show that the symmetric supermode in the coupled structure can exhibit a giant negative dispersion up to −4.5×106ps/nm/km.
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关键词
Group velocity dispersion,Supermode,Subwavelength-diameter wires
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