Using two-photon-excited photoluminescence of Au, local intensity enhancement factors for "bowtie" nanoantennas have been experimentally determined for the first time. Enhancements > 103 occur for 20 nm gap bowties, in good agreement with theoretical simulations.
© 2005 Optical Society of America
P. J. Schuck, D. P. Fromm, W. E. Moerner, A. Sundaramurthy, and G. Kino, "Gold Bowtie Nanoantennas: Improving the Mismatch between Light and Nanoscale Objects," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper QMH1.
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