Optical antenna of comb-shaped split ring architecture for increased field localization in NIR and MIR
Kilic, V. T.
Erturk, V. B.
Demir, H. V.
Optical Society of America
29455 - 29461
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Please cite this item using this persistent URLhttp://hdl.handle.net/11693/12372
We propose and demonstrate novel designs of optical antennas based on comb-shaped split ring architecture that display multi resonance field intensity enhancement spectrum. These nanoantennas achieve substantially increased field localization at longer wavelengths than that of a single or an array of dipoles with the same side length. With these optical antennas, localizing near infrared (NIR) and mid infrared (MIR) lights within a region of tens of nanometers at an intensity enhancement level of the order of thousands of magnitude can be accomplished. (C)2013 Optical Society of America.