Design of two-dimensional THz imaging optical system

Liang Baowen; Ye Limin; Lv Zhaoshun; Li Junyu; Wu Hanping

doi:10.11884/HPLPB201527.053103

Volume 27 Issue 05

Apr. 2015

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2015 > 27(05): 053103

Liang Baowen, Ye Limin, Lv Zhaoshun, et al. Design of two-dimensional THz imaging optical system[J]. High Power Laser and Particle Beams, 2015, 27: 053103. doi: 10.11884/HPLPB201527.053103

Citation:

Liang Baowen, Ye Limin, Lv Zhaoshun, et al. Design of two-dimensional THz imaging optical system[J]. High Power Laser and Particle Beams, 2015, 27: 053103. doi: 10.11884/HPLPB201527.053103

Liang Baowen, Ye Limin, Lv Zhaoshun, et al. Design of two-dimensional THz imaging optical system[J]. High Power Laser and Particle Beams, 2015, 27: 053103. doi: 10.11884/HPLPB201527.053103

Citation:

Liang Baowen, Ye Limin, Lv Zhaoshun, et al. Design of two-dimensional THz imaging optical system[J]. High Power Laser and Particle Beams, 2015, 27: 053103. doi: 10.11884/HPLPB201527.053103

PDF( 3379 KB)

Design of two-dimensional THz imaging optical system

doi: 10.11884/HPLPB201527.053103

Liang Baowen¹,
Ye Limin²,
Lv Zhaoshun^1,3,
Li Junyu^1,4,
Wu Hanping^{1,3,4
,
,}

1.
Institute of Optoelectronic System Technology,Wuhan Institute of Technology,Wuhan 430205,China;
2.
School of Electronic and Information Engineering,Naval University of Engineering,Wuhan 430033,China;
3.
Department of Weaponry,Naval University of Engineering,Wuhan 430033,China ;
4.
Faculty of Material and Photo-electronic Physics,Xiangtan University,Xiangtan 411105,China

Received Date: 2014-12-02
Rev Recd Date: 2015-03-10
Publish Date: 2015-04-24

Abstract

Abstract

Two-dimensional THz imaging can be used for safety inspection and quality control. This paper presents the design of a wide field off-axis three-mirror optical system for two-dimensional THz imaging. The surface types of the three-mirror system are analyzed according to the Petzvals condition and an off-axis three-mirror system based on the retrofocus configuration is proposed. And an off-axis three-mirror system with a field of view of 2020 , a focal length of 70 mm and F number of 3.5 is designed. The result indicates that MTF of the optical system is close to the diffraction limit. In each field of view, the RMS radius of the spot diagram is much smaller than the radius of the Airy disk. The optical system with a good image quality meets the design requirements.
- THz,
- two-dimensional,
- optical system,
- retrofocus configuration,
- off-axis three-mirror system