AI Article Synopsis
- Optical antennas help manipulate light at the nanoscale and can be actively controlled using external electrical signals.
- By adjusting the medium around the antennas, researchers can alter how they interact with each other, enhancing their polarization and tuning capabilities.
- This control is essential for effectively directing light waves with these advanced optical devices.
Article Abstract
Optical antennas are elementary units used to direct optical radiation to the nanoscale. Here we demonstrate an active control over individual antenna performances by an external electrical trigger. We find that by an in-plane command of an anisotropic load medium, the electromagnetic interaction between individual elements constituting an optical antenna can be controlled, resulting in a strong polarization and tuning response. An active command of the antenna is a prerequisite for directing light wave through the utilization of such a device.
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| http://dx.doi.org/10.1021/nl902126z | DOI Listing |
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