Simulation for measurement of lightning channel temperature using a dual-band high-precision lightning imaging spectrometer

被引：1
|
作者：
Wang, Jingyu [1 ]
Gao, Haiyang [1 ,2 ]
Zhu, Di [1 ]
Huang, Shangzhang [1 ]
Zhou, Hengtao [1 ]
Kou, Leilei [1 ,2 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Sch Atmospher Phys, Nanjing 210044, Peoples R China
[2] Nanjing Univ Informat Sci & Technol, Lab Aerosol Cloud Precipitat, China Meteorol Adm, Nanjing 210044, Peoples R China
来源：
APPLIED OPTICS | 2021年 / 60卷 / 11期
关键词：
Spectrometers - Water vapor - Spectroscopy;
D O I：
10.1364/AO.418868
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A dual-band high-precision lightning imaging spectrometer (DHLIS) is designed to capture the fine spectrum of transient lightning. DHLIS improves the theoretical spectral resolution limit to 10(-3) nm and broadens the spectral range to 30-40 nm by employing double echelle gratings in the arms of a spatial heterodyne spectrometer. Four strong and three fine spectral lines are selected to retrieve the temperature of the lightning channel using the Boltzmann plot method. The experimental results indicate that the inversion accuracy of the temperature obtained by inserting fine spectral lines is higher than that by implementation of four strong spectral lines. (C) 2021 Optical Society of America
引用
收藏
页码：3192 / 3202
页数：11
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