中国光学（中英文）2026，Vol.19Issue(2)：308-316,9.DOI:10.37188/CO.2025-0140
抛物面-棱镜型中阶梯光栅光谱仪设计
Design of a paraboloid-prism echelle spectrometer
摘要
Abstract
Aiming at the technical challenge of reconciling high resolution with miniaturization in traditional echelle spectrometers,this paper presents a novel optical design for a compact echelle spectrometer.First,based on the crossed Czerny-Turner structure,the design adopts a transmission prism as the cross-dispersing element to separate spectra with different orders and a reverse off-axis parabolic focusing mirror is primarily used to eliminate the aberrations introduced by the prism,thereby enabling the miniaturization of the spatial layout.In this paper,we briefly describe the design methods for echelle gratings and dispersive prisms.Addi-tionally,the aberration characteristics of the focusing optical path are analyzed using the theory of optical path aberration.The simulation results show that the parabolic-prism type echelle spectrometer has a spectral range of 450～650 nm,a numerical aperture of 0.05,and a resolution up to 0.06 nm.Moreover,under the con-dition of reasonable tolerance range,the system volume is only 80 mm×44 mm×18 mm.It can satisfy the application requirements of portable and high-precision spectral detection.关键词
中阶梯光栅光谱仪/交叉C-T结构/离轴抛物面/光学设计Key words
echelle spectrometer/crossed Czerny-Turner structure/off-axis parabolic/optical design分类
信息技术与安全科学引用本文复制引用
苏渤皓,刘建利,王玮,巴音贺希格..抛物面-棱镜型中阶梯光栅光谱仪设计[J].中国光学（中英文）,2026,19(2):308-316,9.基金项目
国家重点研发计划项目(No.2023YFF0718100,No.2022YFB3606100) （No.2023YFF0718100,No.2022YFB3606100）
江苏省高等学校自然科学研究面上项目(No.20KJB416003)Supported by National Key Research and Development Program of China(No.2023YFF0718100,No.2022YFB3606100) （No.20KJB416003）
Natural Science Foundation of the Jiangsu Higher Education Institutions of China(No.20KJB416003) （No.20KJB416003）
