Researching | Optical System Design of UV-Visible Reflective Imaging Micro-Spectrometer

Acta Optica Sinica, Volume. 44, Issue 18, 1822002(2024)

Optical System Design of UV-Visible Reflective Imaging Micro-Spectrometer

Baoze Guo^1,2,3,4, Entao Shi^1,3,4、*, Yongmei Wang^1,3,4, Jiu Liu^1,3,4, Jun Zhu⁵, and Shun Yao⁵

Author Affiliations

¹National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China

²North China Research Institute of Electro-Optics, Beijing 100015, China

³Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China

⁴Key Laboratory of Space and Technology on Space Environmental Situation Awareness, Chinese Academy of Sciences, Beijing 100190, China

⁵DFH Satellite Co., Ltd., Beijing 100094, China

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Abstract Get PDF(in Chinese)

Figures&Tables (16)

References (18)

Paper Information

Figures & Tables(16)

Fig. 1. Diagram of finite coaxial four-mirror optical structure

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$Diffraction angle of diffraction grating$

Fig. 2. Diffraction angle of diffraction grating

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Fig. 3. Diagram of spectral system structure

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Fig. 4. Diagram of chief ray of on-axis system

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Fig. 5. Optical layouts of reflection system. (a) Image plane is away from the optical axis; (b) image plane towards the optical axis

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Fig. 6. Diagram of off-axis structure

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Fig. 7. Diagram of unshielded structure

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Fig. 8. Flow chart of calculation of initial structure

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Fig. 9. Optical structure of reflecting spectrometer

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Fig. 10. Grayscale images of system wavefront error. (a) 320 nm; (b) 500 nm

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Fig. 11. RMS and MTF curves of system varying with wavelength. (a) RMS; (b) MTF

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Fig. 12. Smile varying with field of view and Keystone varying with wavelength. (a) Smile varying with field of view; (b) Keystone varying with wavelength

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Fig. 13. Spectral resolution. (a) 410 nm; (b) 320-500 nm

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Table 1. Parameter value ranges
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Table 1. Parameter value ranges
Parameter Value
$d_{1}$ [30, 85]
$d_{2}$ [30, 60]
$d_{31}$ [40, 80]
$d_{32}$ [100, 150]
$d_{4}$ [130, 200]
$r_{1}$ ≤400
$r_{2}$ ≤200
$r_{3}$ ≤200
$r_{4}$ ≥-100

Table 2. Main parameters
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Table 2. Main parameters
Performance parameter Value
Spectral range /nm 320-500
Volume /L 3
Slit length /mm 12
Slit width /mm 0.1
Spectral resolution /nm 0.5
Scaling factor 1/2

Table 3. Initial structure parameters of spectrometer system
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Table 3. Initial structure parameters of spectrometer system
Parameter
Radius /
mm
Distance /
mm
Tilt /（°） Line density /μm
Object - 35.1000
M1 （stop） 14.78 -33.5600
M2 79.32 72.1920
Grating - -112.4200 2.15 1.458
M3 138.24 177.6174
M4 -29.91 -17.9000

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Baoze Guo, Entao Shi, Yongmei Wang, Jiu Liu, Jun Zhu, Shun Yao. Optical System Design of UV-Visible Reflective Imaging Micro-Spectrometer[J]. Acta Optica Sinica, 2024, 44(18): 1822002

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Paper Information

Category: Optical Design and Fabrication

Received: Nov. 20, 2023

Accepted: Feb. 26, 2024

Published Online: Sep. 11, 2024

The Author Email: Shi Entao (set@nssc.ac.cn)

DOI:10.3788/AOS231807

CSTR:32393.14.AOS231807

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology