宽波段凸面闪耀光栅优化设计

朱嘉诚; 靳阳明; 黄绪杰; 刘全; 沈为民

doi:10.3788/IRLA201746.1120003

宽波段凸面闪耀光栅优化设计

doi: 10.3788/IRLA201746.1120003

朱嘉诚^1,2,
靳阳明^1,2,
黄绪杰^1,2,
刘全^1,2,3,
沈为民^1,2

1.
苏州大学物理与光电·能源学部教育部现代光学技术重点实验室,江苏苏州 215006;
2.
苏州大学物理与光电·能源学部江苏省先进光学制造技术重点实验室,江苏苏州 215006;
3.
苏州大学物理与光电·能源学部苏州纳米科技协同创新中心,江苏苏州 215006

基金项目:

国家重点研发计划（2016YFB05500501）

详细信息

作者简介:
朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

中图分类号: O436.1

Design and optimization of broadband convex blazed grating

1.
Key Lab of Modern Optical Technologies of Education Ministry of China,College of Physics,Optoelectronics and Energy,Soochow University,Suzhou 215006,China;
2.
Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province,College of Physics,Optoelectronics and Energy,Soochow University,Suzhou 215006,China;
3.
College of Physics,Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou 215006,China

摘要: 凸面闪耀光栅是研制高光谱分辨率成像光谱仪的关键元件之一，一般凸面闪耀光栅的有效波段范围较窄，较难满足宽波段成像光谱仪对光栅衍射效率的需求。为拓宽仪器观测波段，对其中凸面闪耀光栅进行了优化设计。以0.4~2.5 m波段Offner型成像光谱仪为例，研究了凸面光栅单衍射级和双衍射级共路两种色散结构，采用分区闪耀光栅和双角闪耀光栅来提高宽波段范围内的衍射效率。优化设计了两种双闪耀光栅在不同色散结构下的槽形，用标量理论和有限元分析等方法对光栅衍射效率进行了计算。结合仪器信噪比，给出了满足成像光谱仪不同需求时所适用的光栅。
- 宽波段 /
- 分区闪耀光栅 /
- 双角闪耀光栅 /
- 衍射效率 /
- 信噪比
Abstract: Convex blazed grating is one of the key elements in hyperspectral imaging spectrometers. Generally, the effective wavelength coverage of blazed grating is not broad enough to meet the need of imaging spectrometer for grating's diffraction efficiency. To extend the observation band of imaging spectrometer, in which the convex blazed grating was designed and optimized. A case study of 0.4-2.5 m band Offner type imaging spectrometer, single-order and dual-order dispersive structures of convex grating were researched. Partitioned blazed grating and dual-angle blazed grating were used to improve the diffraction efficiency in the range of a broadband. The groove shape of two types of dual-blazed gratings with different dispersive structures was optimally designed, and the diffraction efficiency was calculated by the method of scalar theory and finite element analysis. According to the signal-to-noise ratio(SNR) of the instrument, different types of grating were proposed to meet different requirements of imaging spectrometer.
- broadband /
- partitioned blazed grating /
- dual-angle blazed grating /
- diffraction efficiency /
- SNR

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宽波段凸面闪耀光栅优化设计

doi: 10.3788/IRLA201746.1120003

作者简介:
朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

Design and optimization of broadband convex blazed grating

计量

宽波段凸面闪耀光栅优化设计

doi: 10.3788/IRLA201746.1120003

作者简介:
朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

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Design and optimization of broadband convex blazed grating

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宽波段凸面闪耀光栅优化设计

doi: 10.3788/IRLA201746.1120003

作者简介: 朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

Design and optimization of broadband convex blazed grating

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宽波段凸面闪耀光栅优化设计

doi: 10.3788/IRLA201746.1120003

作者简介: 朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

English Abstract

Design and optimization of broadband convex blazed grating

全文HTML

目录

作者简介:
朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn

作者简介:
朱嘉诚(1993-),男,硕士生,主要从事衍射光学及光谱技术方面的研究。Email:20154208096@stu.suda.edu.cn