Design parameters for a nano-optical Yagi-Uda antenna

Details Design parameters for a nano-optical Yagi-Uda antenna Design parameters for a nano-optical Yagi-Uda antenna

2007-03-23

arxiv.org/abs/cond-mat/0703595v1

New J. Phys. 9 (2007) 217

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages, including 7 figures and 3 tables

Scientific paper

10.1088/1367-2630/9/7/217

We investigate the possibility of directing optical emissions using a Yagi-Uda antenna composed of a finite linear array of nanoparticles. The relevant parameters characterizing the plasma resonances of the nanoparticles are identified and the interaction between the array elements is formulated accordingly. It is shown that the directionality of the optical emission can be observed even in the presence of non-negligible absorption losses in the nanoparticles. We conclude that a finite array of gold nanorods may be sufficient for the realization of a working nano-optical Yagi-Uda antenna.

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