High-quality factor mid-infrared absorber based on all-dielectric metasurfaces
文献类型：期刊论文
| 作者 | F. Yang, Z. Liang, D. Meng, X. Shi, Z. Qin, R. Dai, C. Sun, Y. Ren, J. Feng and W. Liu |
| 刊名 | Optics Express
 |
| 出版日期 | 2023 |
| 卷号 | 31期号:4页码:5747-5756 |
| ISSN号 | 10944087 |
| DOI | 10.1364/OE.482987 |
| 英文摘要 | The absorption spectrum of metasurface absorbers can be manipulated by changing structures. However, narrowband performance absorbers with high quality factors (Q-factor) are hard to achieve, mainly for the ohmic loss of metal resonators. Here, we propose an all-dielectric metasurface absorber with narrow absorption linewidth in the mid-infrared range. Magnetic quadrupole resonance is excited in the stacked Ge-Si3N4 nanoarrays with an absorption of 89.6% and a Q-factor of 6120 at 6.612 μm. The separate lossless Ge resonator and lossy Si3N4 layer realize high electromagnetic field gain and absorption, respectively. And the proposed method successfully reduced the intrinsic loss of the absorber, which reduced the absorption beyond the resonant wavelength and improved the absorption efficiency of Si3N4 in the low loss range. Furthermore, the absorption intensity and wavelength can be modulated by adjusting the geometric parameters of the structure. We believe this research has good application prospects in mid-infrared lasers, thermal emitters, gas feature sensing, and spectral detection. © 2023 Optica Publishing Group. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/68081]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | F. Yang, Z. Liang, D. Meng, X. Shi, Z. Qin, R. Dai, C. Sun, Y. Ren, J. Feng and W. Liu. High-quality factor mid-infrared absorber based on all-dielectric metasurfaces[J]. Optics Express,2023,31(4):5747-5756. |
| APA | F. Yang, Z. Liang, D. Meng, X. Shi, Z. Qin, R. Dai, C. Sun, Y. Ren, J. Feng and W. Liu.(2023).High-quality factor mid-infrared absorber based on all-dielectric metasurfaces.Optics Express,31(4),5747-5756. |
| MLA | F. Yang, Z. Liang, D. Meng, X. Shi, Z. Qin, R. Dai, C. Sun, Y. Ren, J. Feng and W. Liu."High-quality factor mid-infrared absorber based on all-dielectric metasurfaces".Optics Express 31.4(2023):5747-5756. |
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