Presentation Information
[10p-C310-10]Hyperuniform plasmonic metasurface for controlling infrared emission
〇(P)Victor Adrien GUILLEMOT1, Masahiro NOMURA1 (1.IIS, Univ. of Tokyo)
Keywords:
Plasmonic Metasurfaces,Thermal Emitters,Infrared Emission Control
Thermal radiation engineering enables the control of infrared emission beyond conventional black-body limits. In this work, we present a plasmonic metasurface combining metal–insulator–metal (MIM) resonators with a stealth hyperuniform distribution. Unlike periodic structures, hyperuniform arrangements suppress long-range density fluctuations while preserving isotropy, offering a promising route toward angularly robust thermal emitters. Electromagnetic simulations were used to optimize the antenna geometry and identify the resonant cavity modes. The metasurface was fabricated through gold deposition, silica sputtering, and laser lithography. Fourier-transform infrared spectroscopy measurements reveal a narrowband emission peak around 7 micrometers associated with the fundamental gap-plasmon resonance. The device also exhibits nearly isotropic emissivity up to 30 degree observation angle. These results demonstrate the potential of hyperuniform plasmonic metasurfaces for tunable infrared emission control in thermal management, radiative cooling, sensing, and thermophotovoltaic applications.