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Updated: Jun 21, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Cross resonant optical antenna
1Nano-Optics and Biophotonics group, Department of Experimental Physics 5, Wilhelm-Conrad-Röntgen-Center for Complex Material Systems (RCCM), Physics Institute, University of Würzburg, Am Hubland, 97074 Würzburg, Germany. paolo.biagioni@polimi.it
Abstract:
We propose a novel cross resonant optical antenna consisting of two perpendicular nanosized gold dipole antennas with a common feed gap. We demonstrate that the cross antenna is able to convert propagating fields of any polarization state into correspondingly polarized, localized, and enhanced fields and vice versa. The cross antenna structure therefore opens the road towards the control of light-matter interactions based on polarized light as well as the analysis of polarized fields on the nanometer scale.
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