Related Experiment Video
Updated: Apr 18, 2026
09:33
Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
6.8K
Electrically controlled nonlocal metasurfaces
Torgom Yezekyan1, Sergey I Bozhevolnyi1
1Centre for Nano Optics, University of Southern Denmark, Odense M, DK-5230, Denmark. ty@mci.sdu.dk.
Nanoscale Horizons
|April 16, 2026
Summary
Electrically tunable nonlocal metasurfaces offer dynamic control over light manipulation on ultrathin platforms. These advanced optical devices enable programmable wavefront shaping and novel functionalities for next-generation photonic systems.
Area of Science:
- Photonics and Optics
- Metamaterials
- Nanotechnology
Background:
- Nonlocal metasurfaces utilize collective electromagnetic modes for momentum-dependent light control.
- Electrical tunability transforms static metasurfaces into dynamic, programmable optical devices.
Purpose of the Study:
- To review recent advancements in electrically controlled nonlocal metasurfaces.
- To highlight physical mechanisms and electrical tuning strategies.
- To examine emerging spatiotemporal nonlocal metasurfaces.
Main Methods:
- Exploiting coupled-resonator networks, guided-mode resonances, and surface lattice resonances.
- Employing electrical control via carrier modulation, phase-change materials, and electro-optic effects.
- Investigating spatiotemporal nonlocal metasurfaces for ultrafast modulation.
Main Results:
- Demonstrated dynamic tuning of phase, amplitude, and wavevector.
- Enhanced modulation strengths through resonant nonlocal architectures.
- Enabled frequency-momentum conversion and nonreciprocal optical functionalities.
Conclusions:
- Electrically controlled nonlocal metasurfaces represent a significant leap in ultrathin optics.
- These systems offer a reconfigurable interface for complex optical operations.
- Future applications include adaptive signal processing and advanced photonic devices.
