| Citation: | CAO Yi-qing, SHEN Zhi-juan. Design of large aperture terahertz wave imaging optical system[J]. Chinese Optics. doi: 10.37188/CO.2023-0175
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The Terahertz wave possesses characteristics of high penetration, low energy, and fingerprint spectrum, etc., making it widely used in the detection field. Therefore, developing a Terahertz wave detection optical imaging system holds substantial significance and wide application prospects. Firstly, we refer to the structure of Tessar objective lens, which consists four lenses. The balance equations of aberration for the system were established through the application of the aberration theory of the paraxial optical system. Subsequently, we provide a solution function and method of the initial structure parameters of the system. Then, we combine it with optical design software to further correct the aberration of the system. Finally, we design a Terahertz wave detection optical imaging system with a large aperture. The optical system consists of four coaxial refractive lenses with a total focal length of 70 mm, an F-number of 1.4, and a full field of view angle of 8°. The value of modulation transfer function (MTF) in the range of full field of view angle is greater than 0.32 at the Nyquist frequency of 10 lp/mm, and the root mean square (RMS) radius of the diffused spot in each field of view is less than the airy disk radius. Finally, the paper analyzes and discusses the various tolerance types of the system. The results indicate that the Terahertz wave detection optical imaging system, designed in this paper, has a large aperture, a simple, compact form, a lightweight structure, excellent imaging performance and simple processing, which meets the design requirements, and it has important applications in the field of high-resolution detection and other fields within the Terahertz wave band.
| [1] |
金钻明, 郭颖钰, 季秉煜, 等. 超快太赫兹自旋光电子学研究进展(特邀)[J]. 光子学报,2022,51(7):0751410. doi: 10.3788/gzxb20225107.0751410
JIN Z M, GUO Y Y, JI B Y, et al. Development of ultrafast spin-based terahertz photonics (invited)[J]. Acta Photonica Sinica, 2022, 51(7): 0751410. (in Chinese). doi: 10.3788/gzxb20225107.0751410
|
| [2] |
郑江鹏, 余平, 赵萌, 等. 利用低信噪比小样本太赫兹光谱实现心肌淀粉样变检测[J]. 中国光学,2022,15(3):443-453. doi: 10.37188/CO.2021-0223
JIANG J P, YU P, ZHAO M, et al. Detection of myocardial amyloidosis by a small number of terahertz spectra with low signal-to-noise ratio[J]. Chinese Optics, 2022, 15(3): 443-453. (in Chinese). doi: 10.37188/CO.2021-0223
|
| [3] |
马卿效, 李春, 李天莹, 等. 基于太赫兹光谱和机器学习算法的二元及三元混合物定量分析[J]. 激光与光电子学进展,2022,59(19):1930003.
MA Q X, LI CH, LI T Y, et al. Quantitative analysis of binary and ternary mixtures based on Terahertz spectroscopy and machine learning algorithm[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1930003. (in Chinese).
|
| [4] |
卢雪晶, 葛宏义, 蒋玉英, 等. 太赫兹技术在农产品检测中的应用研究进展[J]. 光谱学与光谱分析,2022,42(11):3330-3335.
LU X J, GE H Y, JIANG Y Y, et al. Application progress of Terahertz technology in agriculture detection[J]. Spectroscopy and Spectral Analysis, 2022, 42(11): 3330-3335. (in Chinese).
|
| [5] |
胡军, 刘燕德, 孙旭东, 等. 基于BP神经网络的太赫兹时域光谱对面粉中苯甲酸的定量检测研究[J]. 激光与光电子学进展,2020,57(7):073002.
HU J, LIU Y D, SUN X D, et al. Quantitative determination of benzoic acid in flour based on Terahertz time-domain spectroscopy and BPNN model[J]. Laser & Optoelectronics Progress, 2020, 57(7): 073002. (in Chinese).
|
| [6] |
王华泽, 吴晗平, 吕照顺, 等. 太赫兹成像系统分析及其相关技术研究[J]. 红外技术,2013,35(7):391-397. doi: 10.11846/j.issn.1001_8891.201307002
WANG H Z, WU H P, LV ZH SH, et al. Research on THz imaging system and related technologies[J]. Infrared Technology, 2013, 35(7): 391-397. (in Chinese). doi: 10.11846/j.issn.1001_8891.201307002
|
| [7] |
曹恩达, 于勇, 宋长波, 等. 一种手持式太赫兹探测系统的光学及结构设计[J]. 遥测遥控,2020,41(2):1-9. doi: 10.3969/j.issn.2095-1000.2020.02.001
CAO E D, YU Y, SONG CH B, et al. An optical and structural design of a hand-held Terahertz detection system based on Zemax and ProE[J]. Journal of Telemetry Tracking and Command, 2020, 41(2): 1-9. (in Chinese). doi: 10.3969/j.issn.2095-1000.2020.02.001
|
| [8] |
耿贺彬, 李超. 一种太赫兹透镜优化方法[J]. 电子测量技术,2020,43(8):159-164,188. (in Chinese). doi: 10.19651/j.cnki.emt.1903888
GENG H B, LI CH. Optimization approach for Terahertz lens[J]. Electronic Measurement Technology, 2020, 43(8): 159-164,188. doi: 10.19651/j.cnki.emt.1903888
|
| [9] |
杨旭, 牟达, 陈炳旭, 等. 基于太赫兹波段的三反变焦系统设计[J]. 长春理工大学学报(自然科学版),2021,44(1):1-6.
YANG X, MU D, CHEN B X, et al. Design of three reflective zoom system based on Terahertz band[J]. Journal of Changchun University of Science and Technology (Natural Science Edition), 2021, 44(1): 1-6. (in Chinese).
|
| [10] |
李志雷, 刘海峰, 池威威, 等. 基于太赫兹光谱技术的光学系统设计及应用[J]. 应用光学,2022,43(3):409-414.
LI ZH L, LIU H F, CHI W W, et al. Design and application of optical system based on Terahertz spectroscopy technology[J]. Journal of Applied Optics, 2022, 43(3): 409-414. (in Chinese).
|
| [11] |
宋菲君, 陈笑, 刘畅. 近代光学系统设计概论[M]. 北京: 科学出版社, 2019.
SONG F J, CHEN X, LIU CH. An Introduction to the Modern Optical System Design[M]. Beijing: Science Press, 2019. (in Chinese) (查阅网上资料, 未找到对应的英文翻译, 请确认) .
|
| [12] |
李梅. 15~38 μm太赫兹波成像光学系统设计研究[D]. 长春: 长春理工大学, 2006.
LI M. Design study of 15-38μm THz spectrum wave band imaging optical system[D]. Changchun: Changchun University of Science and Technology, 2006. (in Chinese).
|
| [13] |
BORN M, WOLF E. Principle of Optics[M]. Cambridge: Cambridge University, 2005. (查阅网上资料, 未找到本条文献信息, 请确认) .
BORN M, WOLF E. Principle of Optics[M]. Cambridge: Cambridge University, 2005. (查阅网上资料, 未找到本条文献信息, 请确认).
|
| [14] |
史光辉. 用高斯光学和三级像差理论求变焦距物镜的初始解[J]. 中国光学,2018,11(6):1047-1060. doi: 10.3788/co.20181106.1047
SHI G H. Find preliminary solution of zoom objective lens using Gaussian optics and third-order aberration theory[J]. Chinese Optics, 2018, 11(6): 1047-1060. (in Chinese). doi: 10.3788/co.20181106.1047
|
| [15] |
沈志娟, 曹一青. 大相对孔径长焦距同轴折反射式望远物镜设计[J]. 激光与光电子学进展,2021,58(1):0108002.
SHEN ZH J, CAO Y Q. Design of a coaxial catadioptric telescope objective with a large relative aperture and long focal length[J]. Laser & Optoelectronics Progress, 2021, 58(1): 0108002. (in Chinese).
|
| [16] |
曹桂丽, 刘芳芳, 贾永丹, 等. 大相对孔径、长焦距的紫外告警光学系统设计[J]. 激光与光电子学进展,2019,56(12):122203.
CAO G L, LIU F F, JIA Y D, et al. Design of ultraviolet warning optical system with large relative aperture and long focal length[J]. Laser & Optoelectronics Progress, 2019, 56(12): 122203. (in Chinese).
|
| [17] |
李康, 周峰, 王保华, 等. 制冷型被动式消热差红外光学系统设计[J]. 中国光学,2023,16(4):853-860. doi: 10.37188/CO.2022-0205
LI K, ZHOU F, WANG B H, et al. Passive athermalization design of a cooled infrared optical system[J]. Chinese Optics, 2023, 16(4): 853-860. (in Chinese). doi: 10.37188/CO.2022-0205
|
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