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Franklin College Highlights New Research from Assoc. Prof. Yohannes Abate's Research Group

November 20, 2018

Their research published in Nature Communications describes one of the latest developments in nanoscale quantum materials in the quest for small, and controllable, confined light-matter interaction.

The focus of the paper is hyperbolic metasurfaces, artificial materials capable of shortening light wavelengths to the point where small computer chips and other devices can manipulate that light to transmit information.

Advanced imaging tools being developed by Abate's group at UGA allow unprecedented confinement of long wavelength light to very small volume enabling access to study metasurfaces.

BoronVO2_v6 (1).jpg
Schematic of an actively reconfigurable hyperbolic metasurface device

"One of the main challenges in such small-scale light manipulating devices is the difficulty to even investigate such materials," said Yohannes Abate, associate professor of physics.
"We achieve light confinement by focusing light to a needle-like probe that has a very small diameter. This confined light allows us to see small structures that the best lens-based microscope cannot resolve."

These results reported by Abate's group are the first works showing manipulation and control of confined and traveling mix of light and matter. The results open numerous opportunities to steer, alter and guide light in optoelectronic and quantum devices.

The full study, Reconfigurable infrared hyperbolic metasurfaces using phase change materials, is available at

Click here to read more on Franklin College's site.


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