Analysis and design of a wide-field and large-numerical-aperture compact imaging spectrometer with a freeform surface
文献类型：期刊论文
| 作者 | J. L. Zhang; Y. Q. Zheng; C. Lin; Z. H. Ji; Y. X. Han and Y. Shi |
| 刊名 | Applied Optics
 |
| 出版日期 | 2022 |
| 卷号 | 61期号:33页码:10021-10031 |
| ISSN号 | 1559-128X |
| DOI | 10.1364/ao.472164 |
| 英文摘要 | Wide-field-of-view (FoV) Offner imaging spectrometers with freeform surfaces have been studied extensively in recent years. However, a design result with a large numerical aperture (NA) cannot be simultaneously obtained with this layout. We present the concept of a limited system in the tangential direction. Based on this insight, we present a new design method, to the best of our knowledge, based on the decenter anamorphic stop, which can achieve large NA in compact wide-FoV Offner imaging spectrometers with freeform surfaces. Compared to conven-tional imaging spectrometers with the same parameters, the light-gathering capacity of the decenter anamorphic stop-based imaging spectrometer is increased by more than 40%. In addition, based on the presented method, we design a compact imaging spectrometer with a wide FoV and large NA. The designed imaging spectrometer with a freeform surface has excellent performance. Finally, we fabricate and measure the freeform mirror. The surface irregularity of the freeform mirror is better than 1/30 lambda (lambda = 632.8 nm). The result shows that the Offner imaging spectrometer with a freeform surface can be fabricated and will play a significant role in the fields of aeronautical and astronautical remote sensing. (c) 2022 Optica Publishing Group |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/66411]  |
| 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 | J. L. Zhang,Y. Q. Zheng,C. Lin,et al. Analysis and design of a wide-field and large-numerical-aperture compact imaging spectrometer with a freeform surface[J]. Applied Optics,2022,61(33):10021-10031. |
| APA | J. L. Zhang,Y. Q. Zheng,C. Lin,Z. H. Ji,&Y. X. Han and Y. Shi.(2022).Analysis and design of a wide-field and large-numerical-aperture compact imaging spectrometer with a freeform surface.Applied Optics,61(33),10021-10031. |
| MLA | J. L. Zhang,et al."Analysis and design of a wide-field and large-numerical-aperture compact imaging spectrometer with a freeform surface".Applied Optics 61.33(2022):10021-10031. |
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