The geometry of a traditional plasmonic bowtie antenna is modified in order to red-shift the resonant wavelength of the antenna while maintaining its footprint area constant. This design also increases the gap enhancement.
© 2012 OSA
S. Sederberg and A. Y. Elezzabi, "A nanoplasmonic contour bowtie for nanoscale confinement of midinfrared radiation," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper JTh2A.114.
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