Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors
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...
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MDPI AG
2024-11-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/12/1132 |
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| author | Yeong Hwan Ko Robert Magnusson |
| author_facet | Yeong Hwan Ko Robert Magnusson |
| author_sort | Yeong Hwan Ko |
| collection | DOAJ |
| description | 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 achieved high reflection in the MWIR and LWIR bands simultaneously. Each GMR reflector was optimized as a germanium (Ge) grating structure on a potassium bromide (KBr) substrate. In our analysis, it was 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 demonstrated wideband reflection from ~3.3 to 4.8 μm and ~8.8 to 11 μm. Additionally, the device exhibited favorable angular tolerance. The work contributes to developing capability of metasurface technologies in various application fields. |
| format | Article |
| id | doaj-art-c37fedb7884241558bfe43f0b9fd2f7b |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-c37fedb7884241558bfe43f0b9fd2f7b2024-12-27T14:47:11ZengMDPI AGPhotonics2304-67322024-11-011112113210.3390/photonics11121132Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared ReflectorsYeong Hwan Ko0Robert Magnusson1Division of Electrical, Electronics, and Control Engineering, Kongju National University, Cheonan 31080, Republic of KoreaElectrical Engineering Department, University of Texas at Arlington, Arlington, TX 76016, USAWe 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 achieved high reflection in the MWIR and LWIR bands simultaneously. Each GMR reflector was optimized as a germanium (Ge) grating structure on a potassium bromide (KBr) substrate. In our analysis, it was 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 demonstrated wideband reflection from ~3.3 to 4.8 μm and ~8.8 to 11 μm. Additionally, the device exhibited favorable angular tolerance. The work contributes to developing capability of metasurface technologies in various application fields.https://www.mdpi.com/2304-6732/11/12/1132mid-wave infraredlong-wave infraredguided-mode resonancedual-band reflectordouble-sided metasurfaces |
| spellingShingle | Yeong Hwan Ko Robert Magnusson Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors Photonics mid-wave infrared long-wave infrared guided-mode resonance dual-band reflector double-sided metasurfaces |
| title | Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors |
| title_full | Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors |
| title_fullStr | Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors |
| title_full_unstemmed | Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors |
| title_short | Double-Sided Metasurfaces for Dual-Band Mid-Wave and Long-Wave Infrared Reflectors |
| title_sort | double sided metasurfaces for dual band mid wave and long wave infrared reflectors |
| topic | mid-wave infrared long-wave infrared guided-mode resonance dual-band reflector double-sided metasurfaces |
| url | https://www.mdpi.com/2304-6732/11/12/1132 |
| work_keys_str_mv | AT yeonghwanko doublesidedmetasurfacesfordualbandmidwaveandlongwaveinfraredreflectors AT robertmagnusson doublesidedmetasurfacesfordualbandmidwaveandlongwaveinfraredreflectors |