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High-Performance Ultra-Thin Spectrometer Optical Design Based on Coddington’s Equations

A unique method to design a high-throughput and high-resolution ultrathin Czerny–Turner (UTCT) spectrometer is proposed. This paper reveals an infrequent design process of spectrometers based on Coddington’s equations, which will lead us to develop a high-performance spectrometer from scratch. The s...

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Detalles Bibliográficos
Autores principales: Feng, Zhiwei, Xia, Guo, Lu, Rongsheng, Cai, Xiaobo, Cui, Hao, Hu, Mingyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825106/
https://www.ncbi.nlm.nih.gov/pubmed/33418864
http://dx.doi.org/10.3390/s21020323
Descripción
Sumario:A unique method to design a high-throughput and high-resolution ultrathin Czerny–Turner (UTCT) spectrometer is proposed. This paper reveals an infrequent design process of spectrometers based on Coddington’s equations, which will lead us to develop a high-performance spectrometer from scratch. The spectrometer is composed of cylindrical elements except a planar grating. In the simulation design, spot radius is sub-pixel size, which means that almost all of the energy is collected by the detector. The spectral resolution is 0.4 nm at central wavelength and 0.75 nm at edge wavelength when the width of slit is chosen to be 25 μm and the groove density is 900 lines/mm.