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arXiv · 1206.6176

Tapered Yagi-Uda Nanoantennas for Broadband Unidirectional Emission

Isabelle Staude·Ivan S. Maksymov·Manuel Decker·Andrey E. Miroshnichenko·Dragomir N. Neshev·Chennupati Jagadish·Yuri S. Kivshar
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Abstract

We demonstrate experimentally the operation of tapered Yagi-Uda nanoantennas for broadband unidirectional emission enhancement. The measured transmittance spectra show that, in comparison to untapered reference structures, the tapered nanoantennas exhibit distinct wide-band spectral resonances. The performed full-vectorial numerical calculations are in good qualitative agreement with the measured spectra, further revealing how the near-field profiles of the tapered nanoantennas are directly reflecting their broadband characteristics.

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Isabelle Staude, Ivan S. Maksymov, Manuel Decker, Andrey E. Miroshnichenko, Dragomir N. Neshev, Chennupati Jagadish, Yuri S. Kivshar. 2012-06-27. Tapered Yagi-Uda Nanoantennas for Broadband Unidirectional Emission. https://doi.org/10.1002/pssr.201206466

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