Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure
This paper proposes a near-perfect absorption device based on a cross-shaped titanium nanostructure and a multilayered structure. The multilayered bottom structure consists of alternately SiO<sub>2</sub> and Ti. The whole device is put on a TiN substrate. The coupling between cross-shape...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/2/267 |
| _version_ | 1827653765622136832 |
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| author | Yanlong Meng Jinghao Wu Simeng Liu Yi Li Bo Hu Shangzhong Jin |
| author_facet | Yanlong Meng Jinghao Wu Simeng Liu Yi Li Bo Hu Shangzhong Jin |
| author_sort | Yanlong Meng |
| collection | DOAJ |
| description | This paper proposes a near-perfect absorption device based on a cross-shaped titanium nanostructure and a multilayered structure. The multilayered bottom structure consists of alternately SiO<sub>2</sub> and Ti. The whole device is put on a TiN substrate. The coupling between cross-shaped titanium nanostructures, and that between the cross-shaped titanium nanostructure and bottom multilayer, can further enhance the absorption at some wavelength where most of the energy is reflected or passes through in the device with a single structure. According to the simulation results, the device presents a nearly perfect absorption in a wavelength range from 300 nm to 2000 nm. The average absorptance in the wavelength range from 500 nm to 1400 nm exceeds 96%. This paper also provides a new idea for realizing perfect absorption, which is extensively used in sensing, controllable thermal emission, solar energy harvesting solar thermo-photovoltaic devices, and optoelectronic metrology. |
| first_indexed | 2024-03-09T21:24:17Z |
| format | Article |
| id | doaj.art-07539ac8f6a345e7b0a19a089b0cbb5b |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T21:24:17Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-07539ac8f6a345e7b0a19a089b0cbb5b2023-11-23T21:11:15ZengMDPI AGMicromachines2072-666X2022-02-0113226710.3390/mi13020267Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite StructureYanlong Meng0Jinghao Wu1Simeng Liu2Yi Li3Bo Hu4Shangzhong Jin5The Postdoctoral Center of the Department of Electronic Engineering, Fudan University, Shanghai 200433, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaThe Postdoctoral Center of the Department of Electronic Engineering, Fudan University, Shanghai 200433, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaThis paper proposes a near-perfect absorption device based on a cross-shaped titanium nanostructure and a multilayered structure. The multilayered bottom structure consists of alternately SiO<sub>2</sub> and Ti. The whole device is put on a TiN substrate. The coupling between cross-shaped titanium nanostructures, and that between the cross-shaped titanium nanostructure and bottom multilayer, can further enhance the absorption at some wavelength where most of the energy is reflected or passes through in the device with a single structure. According to the simulation results, the device presents a nearly perfect absorption in a wavelength range from 300 nm to 2000 nm. The average absorptance in the wavelength range from 500 nm to 1400 nm exceeds 96%. This paper also provides a new idea for realizing perfect absorption, which is extensively used in sensing, controllable thermal emission, solar energy harvesting solar thermo-photovoltaic devices, and optoelectronic metrology.https://www.mdpi.com/2072-666X/13/2/267absorptionultra-broadbandmultilayernanostructure |
| spellingShingle | Yanlong Meng Jinghao Wu Simeng Liu Yi Li Bo Hu Shangzhong Jin Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure Micromachines absorption ultra-broadband multilayer nanostructure |
| title | Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure |
| title_full | Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure |
| title_fullStr | Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure |
| title_full_unstemmed | Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure |
| title_short | Ultra-Broadband, Polarization-Irrelevant Near-Perfect Absorber Based on Composite Structure |
| title_sort | ultra broadband polarization irrelevant near perfect absorber based on composite structure |
| topic | absorption ultra-broadband multilayer nanostructure |
| url | https://www.mdpi.com/2072-666X/13/2/267 |
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