Version 1
: Received: 29 October 2024 / Approved: 30 October 2024 / Online: 31 October 2024 (09:50:33 CET)
How to cite:
Ko, Y. H.; Magnusson, R. Double-Sided Metasurfaces for Dual Band Mid-Wave and Long-Wave Infrared Reflectors. Preprints2024, 2024102477. https://doi.org/10.20944/preprints202410.2477.v1
Ko, Y. H.; Magnusson, R. Double-Sided Metasurfaces for Dual Band Mid-Wave and Long-Wave Infrared Reflectors. Preprints 2024, 2024102477. https://doi.org/10.20944/preprints202410.2477.v1
Ko, Y. H.; Magnusson, R. Double-Sided Metasurfaces for Dual Band Mid-Wave and Long-Wave Infrared Reflectors. Preprints2024, 2024102477. https://doi.org/10.20944/preprints202410.2477.v1
APA Style
Ko, Y. H., & Magnusson, R. (2024). Double-Sided Metasurfaces for Dual Band Mid-Wave and Long-Wave Infrared Reflectors. Preprints. https://doi.org/10.20944/preprints202410.2477.v1
Chicago/Turabian Style
Ko, Y. H. and Robert Magnusson. 2024 "Double-Sided Metasurfaces for Dual Band Mid-Wave and Long-Wave Infrared Reflectors" Preprints. https://doi.org/10.20944/preprints202410.2477.v1
Abstract
We present an innovative method for dual band mid-wave infrared (MWIR) and long-wave infrared (LWIR) reflectors. By using double-sided metasurfaces, two high reflection bands can be generated with a single device. As individual guided-mode resonance (GMR) reflectors are combined with interlayer (or substrate) on the top and bottom sides, we achieve high reflection in the MWIR and LWIR bands simultaneously. Each GMR reflector is optimized as a germanium (Ge) grating structure on a potassium bromide (KBr) substrate. In our analysis, it is found that the transparency of the interlayer is critical to produce the dual-band reflection. The simulation results on the Ge/KBr/Ge double-sided metasurfaces demonstrate wideband reflection from ~3.3 to 4.8 μm and ~8.8 to 11 μm. Additionally, the device exhibits favorable angular tolerance. The work contributes to developing capability of metasurface technologies in various application fields.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
