Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3672048
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Funding
- National Natural Science Foundation of China [60971062]
- National Science Council of ROC [NSC 99-2112-M-216-002]
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Subwavelength guiding of channel plasmon polaritons (CPPs) is realized by a properly structured metallic groove at frequencies far below the plasma frequency of metal. Compared with CPPs at visible frequencies, more versatile physical mechanisms can be introduced in these CPPs by surface patterning, so that they can exhibit superior features as visible CPPs, while eliminating the potential drawbacks of the latter. Such designer CPPs are explained physically with the effective-index method and verified experimentally in the microwave regime. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3672048]
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