Maksymov, Ivan; Miroshnichenko, Andrey; Kivshar, Yuri
We introduce broadband and tunable Yagi-Uda-type plasmonic nanoantennas created by arrays of metal nanorods of varying length, and explore their use for nanoscale optical sensing. We suggest placing active nanoparticles, sensitive to chemical substances and biological agents, in close vicinity of individual nanoantenna elements at the points of subwavelength light confinement and enhancement. A change in the optical properties of the nanoparticles on exposure to e.g. inflammable gases...[Show more]
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