Structural Optimization Design and Analysis of M-Type Czerny-Turner Spectrometer

Yunpeng Wu; Jun Wang

doi:10.3788/LOP202259.1130002

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 11 >Page 1130002 > Article

Laser & Optoelectronics Progress
Vol. 59, Issue 11, 1130002 (2022)

Structural Optimization Design and Analysis of M-Type Czerny-Turner Spectrometer

Yunpeng Wu¹ and Jun Wang^1、2、*

Author Affiliations

¹School of Electronic and Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu , China

²Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, Jilin , China

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DOI: 10.3788/LOP202259.1130002 Cite this Article Set citation alerts

Yunpeng Wu, Jun Wang. Structural Optimization Design and Analysis of M-Type Czerny-Turner Spectrometer[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1130002 Copy Citation Text

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Fig. 1. Optical path structure of M-type Czerny-Turner optical system

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$Secondary diffraction between grating and collimating mirror$

Fig. 2. Secondary diffraction between grating and collimating mirror

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$Secondary diffraction between grating and focusing mirror$

Fig. 3. Secondary diffraction between grating and focusing mirror

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Fig. 4. Optical path structures under different

α

and

θ_{C}

.（a）

α = 5 °, θ_{C} = 10 °

；（b）

α = 8 °, θ_{C} = 10 °

；（c）

α = 12 °, θ_{C} = 6 °

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$RMS radius of point column in Y-axis direction and diffraction limit versus wavelength$

Fig. 5. RMS radius of point column in Y-axis direction and diffraction limit versus wavelength

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Fig. 6. Spot diagram of image plane

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Basic parameter	Value
Slit width /μm	25
Relative aperture	1/4
Central wavelength /nm	350
Grating constant /（line·mm^-1）	1/600

Table 1. Basic parameters of Czerny-Turner structure

Specification	$\begin{array}{l} α = 5 °, \\ θ_{C} = 10 ° \end{array}$	$\begin{array}{l} α = 8 °, \\ θ_{C} = 10 ° \end{array}$	$\begin{array}{l} α = 12 °, \\ θ_{C} = 6 ° \end{array}$
$L_{G} / m m$	36.0	36.0	35.3
$R_{C} / m m$	283.9328	282.7183	276.5303
$R_{F} / m m$	317.7038	312.0461	301.8105
$L_{C G} / m m$	120.0041	119.4908	116.8754
$L_{S C} / m m$	139.8096	139.2116	137.5077
$L_{G F} / m m$	134.2774	131.8862	127.5601
$L_{F D} / m m$	154.3639	151.4908	149.2958

Table 2. Design parameters of Czerny-Turner structure

Yunpeng Wu, Jun Wang. Structural Optimization Design and Analysis of M-Type Czerny-Turner Spectrometer[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1130002

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