Efficient unidirectional nanoslit couplers for surface plasmons
نویسندگان
چکیده
منابع مشابه
Efficient unidirectional ridge excitation of surface plasmons.
Using leakage-radiation microscopy, we characterize the efficiency of unidirectional surface-plasmon excitation with periodic (800 nm) arrays of 130-nm-high and 330-nm-wide gold ridges on a thin gold film illuminated with a focused (5-microm-wide) laser beam. We demonstrate that, at the resonant wavelength of 816 nm, the excitation efficiency of > 0.4 can be obtained with >or= 5 ridges by adjus...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2007
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys584