A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface
Metasurface absorbers are already used in many laser applications. To achieve laser stealth, a dual-band guided-laser absorber is presented in this paper. The absorber is composed of periodic silicon squares on a silicon film and a nickel layer. Under normal incidence, the absorber has two absorptio...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/10/682 |
| _version_ | 1797470256247078912 |
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| author | Xinye Liao Junxiang Zeng Yunxiang Zhang Jianjing Zhao Xin He Junbo Yang |
| author_facet | Xinye Liao Junxiang Zeng Yunxiang Zhang Jianjing Zhao Xin He Junbo Yang |
| author_sort | Xinye Liao |
| collection | DOAJ |
| description | Metasurface absorbers are already used in many laser applications. To achieve laser stealth, a dual-band guided-laser absorber is presented in this paper. The absorber is composed of periodic silicon squares on a silicon film and a nickel layer. Under normal incidence, the absorber has two absorption peaks at wavelengths of 1.55 μm and 1.064 μm, with absorption rates higher than 94.4%. For wavelength-tunable 1.55 μm lasers with a large wavelength tuning range of ±50 nm, the absorption rate is still as high as 90%. Plasmonic resonance theory, as well as FDTD simulations, are used to design and study the absorber. It is found that the absorber is independent of the incident polarization and tolerant to the incident angle. The design method is flexible, and the absorber is easy to manufacture. |
| first_indexed | 2024-03-09T19:34:07Z |
| format | Article |
| id | doaj.art-f0f32d30cfb14b5fa4d98598dff6ddf5 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T19:34:07Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-f0f32d30cfb14b5fa4d98598dff6ddf52023-11-24T02:00:45ZengMDPI AGPhotonics2304-67322022-09-0191068210.3390/photonics9100682A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel MetasurfaceXinye Liao0Junxiang Zeng1Yunxiang Zhang2Jianjing Zhao3Xin He4Junbo Yang5Undergraduate School, National University of Defense Technology, Changsha 410073, ChinaUndergraduate School, National University of Defense Technology, Changsha 410073, ChinaUndergraduate School, National University of Defense Technology, Changsha 410073, ChinaUndergraduate School, National University of Defense Technology, Changsha 410073, ChinaDepartment of Physics, National University of Defense Technology, Changsha 410073, ChinaDepartment of Physics, National University of Defense Technology, Changsha 410073, ChinaMetasurface absorbers are already used in many laser applications. To achieve laser stealth, a dual-band guided-laser absorber is presented in this paper. The absorber is composed of periodic silicon squares on a silicon film and a nickel layer. Under normal incidence, the absorber has two absorption peaks at wavelengths of 1.55 μm and 1.064 μm, with absorption rates higher than 94.4%. For wavelength-tunable 1.55 μm lasers with a large wavelength tuning range of ±50 nm, the absorption rate is still as high as 90%. Plasmonic resonance theory, as well as FDTD simulations, are used to design and study the absorber. It is found that the absorber is independent of the incident polarization and tolerant to the incident angle. The design method is flexible, and the absorber is easy to manufacture.https://www.mdpi.com/2304-6732/9/10/682metasurfacelaser stealthdual-band absorptiongrating |
| spellingShingle | Xinye Liao Junxiang Zeng Yunxiang Zhang Jianjing Zhao Xin He Junbo Yang A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface Photonics metasurface laser stealth dual-band absorption grating |
| title | A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface |
| title_full | A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface |
| title_fullStr | A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface |
| title_full_unstemmed | A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface |
| title_short | A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface |
| title_sort | dual band guided laser absorber based on silicon nickel metasurface |
| topic | metasurface laser stealth dual-band absorption grating |
| url | https://www.mdpi.com/2304-6732/9/10/682 |
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