Presentation
3 October 2024 Dynamic thermal emission steering based on active metasurfaces
Min Seok Jang
Author Affiliations +
Abstract
Dynamic control over various properties of thermal emission can be achieved through sophisticated engineering of optical states without altering the object's temperature. This presentation introduces our recent study on the dynamic steering of thermal emission using a graphene-based metasurface device. We employ a laterally delocalized Fabry-Perot mode, whose phase condition can be actively tuned by adjusting the graphene's carrier density via electrostatic gating. We experimentally demonstrate that the device can steer thermal emission across a 16-degree range at a wavelength of 6.61 microns, while maintaining high emissivity.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Min Seok Jang "Dynamic thermal emission steering based on active metasurfaces", Proc. SPIE PC13111, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXII, PC131110O (3 October 2024); https://doi.org/10.1117/12.3030114
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KEYWORDS
Emission wavelengths

Emissivity

Engineering

Fabry Perot interferometers

Graphene

Thermography

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