Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals (IMAGE)

Advanced Devices & Instrumentation

Terahertz Metamaterials for Free-Space and on-Chip Applications: From Active Metadevices to Topological Photonic Crystals

Caption

Active metadevices integrated with semiconductors.

(a) Hybrid silicon-metallic resonators for all-optical ultrafast active metamaterials.

(b) Broadband metamaterial frequency switch with femtosecond switching time by using low-temperature grown GaAs.

(c) Hybrid metamaterials for active terahertz modulation with polarization-dependent relaxation times.

(d) Dielectric metasurfaces for unidirectional and reconfigurable beam steering.

(e) Active dielectric BIC-driven metadevice.

Credit

Advanced Devices & Instrumentation

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