Design of MWIR hyperspectral imagers based on acousto-optic tunable filters
文献类型：期刊论文
| 作者 | Li, Xijie1,2; Gao, Ming2; Liu, Jun2; Li, Yong1; Feng, Yutao1
|
| 刊名 | Optik
 |
| 出版日期 | 2023-04 |
| 卷号 | 276 |
| ISSN号 | 00304026 |
| 关键词 | MWIR Hyperspectral imager AOTF Narcissus analysis |
| DOI | 10.1016/j.ijleo.2023.170636 |
| 产权排序 | 1 |
| 英文摘要 | Thermal infrared hyperspectral imagers have significant application values in the field of space optics. However, it is very difficult to obtain the spectral data cube and temperature field information of fast moving targets in a short time. An acousto-optic tunable filter (AOTF) has many advantages, such as fast tuning speed, light weight and no moving parts. It can obtain thermal infrared hyperspectral images of a fast-moving target in a very short integration time. In this paper, a collimating optical system is obtained by splicing optical path a telescope and a secondary imaging mirror. A middle wavelength infrared (MWIR) AOTF is introduced into the collimating optical system to modulate the spectrum and obtain thermal infrared hyperspectral images. The system with a focal length of 18 mm, a relative aperture of 1/2, a field of view (FOV) of 8°, a spectral resolution of 30.08 nm at 4 µm and a 100% cold diaphragm efficiency achieving is taken as a design example. The design results show that the modulation transfer function (MTF) of the system is greater than 0.6 at the Nyquist space frequency of 17 lp/mm, and the imaging quality is close to the diffraction limit. Finally, we develop a prototype of MWIR hyperspectral imager based on AOTFs and do experiments to prove its feasibility. © 2023 Elsevier GmbH |
| 语种 | 英语 |
| 出版者 | Elsevier GmbH |
| 源URL | [http://ir.opt.ac.cn/handle/181661/96332]  |
| 专题 | 西安光学精密机械研究所_光学影像学习与分析中心 |
| 作者单位 | 1.Key Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China 2.School of Opto-electronical Engineering, Xi'an Technological University, Xi'an; 710021, China; |
| 推荐引用方式 GB/T 7714 | Li, Xijie,Gao, Ming,Liu, Jun,et al. Design of MWIR hyperspectral imagers based on acousto-optic tunable filters[J]. Optik,2023,276. |
| APA | Li, Xijie,Gao, Ming,Liu, Jun,Li, Yong,&Feng, Yutao.(2023).Design of MWIR hyperspectral imagers based on acousto-optic tunable filters.Optik,276. |
| MLA | Li, Xijie,et al."Design of MWIR hyperspectral imagers based on acousto-optic tunable filters".Optik 276(2023). |
入库方式： OAI收割
来源：西安光学精密机械研究所
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