Journal
SENSORS
Volume 21, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/s21165600
Keywords
hybrid metasurfaces; frequency selective surfaces; infrared sensors; electromagnetic wave control
Funding
- University Politehnica of Bucharest
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Simulations were conducted on the spectral behavior of non-layered gold-silicon and all-silicon frequency-selective metasurfaces in the mid-infrared spectral window, demonstrating their viability for applications in absorbers, sensors, and imaging systems.
We report simulations on the spectral behavior of non-layered gold-silicon and all-silicon frequency-selective metasurfaces in an asymmetric element configuration in the mid-infrared spectral window of 5-5.8 mu m. The non-layered layout is experimentally feasible due to recent technological advances such as nano-imprint and nano-stencil lithography, and the spectral window was chosen due to the multitude of applications in sensing and imaging. The architecture exhibits significant resonance in the window of interest as well as extended tunability by means of variation of cell element sizes and relative coordinates. The results indicate that the proposed metasurface architecture is a viable candidate for mid-infrared absorbers, sensors and imaging systems.
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