Optical devices enabled by vertical dielectric Mie resonators

DWPI Title: Optical device, comprises periodic lattice of unit cells in a low-index substrate, and unit cell has hollow cavity etched into substrate, and each cavity has non-planar, high-index dielectric resonators deposited on wall of hollow cavity
Abstract: Dielectric resonators provide a building block for the development of low-loss resonant metamaterials because they replace lossy ohmic currents of metallic resonators with low-loss displacement currents. The spectral locations of electric and magnetic dipole resonances of a dielectric resonator can be tuned by varying the resonator geometry so that desired scattering properties are achieved.
Use: Optical device.
Advantage: Arrays of vertically oriented dielectric Mie resonators provide low-loss resonant metamaterials because they replace lossy ohmic currents of metallic resonators with low-loss displacement currents.
Novelty: The optical device comprises a periodic lattice of unit cells in a low-index substrate. The unit cell has a hollow cavity etched into the substrate. Each cavity has non-planar, high-index dielectric resonators deposited on wall of the hollow cavity. The non-planar, high-index dielectric resonators has an index of refraction greater than 3. The non-planar, high-index dielectric resonator has germanium, silicon, chalcogenide, or a chalcogenide alloy. The non-planar, high-index dielectric resonators has an elliptical or rectangular geometry. The major radius and minor radius of the elliptical or rectangular geometry are selected to provide Huygens' resonators. The non-planar, high-index dielectric resonators has two resonators deposited on opposite walls of a unit cell, thus providing back-to-back vertical resonators in the periodic lattice.
Filed: 3/29/2019
Application Number: US16369218A
Tech ID: SD 14656.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license.