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[Study on far ultraviolet imaging spectrometer with grating dispersion for atmosphere remote sensing]
Lei Yu1, Shu-rong Wang, Guan-yu Lin
1Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. top1gods@email.ustc.edu.cn
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|May 16, 2012
Summary
A new far ultraviolet imaging spectrometer was developed for atmospheric remote sensing. This instrument is crucial for studying Earth's ionosphere, thermosphere, and auroral zones.
Area of Science:
- Atmospheric Physics
- Remote Sensing Technology
- Optical Instrumentation
Context:
- The study focuses on atmospheric remote sensing, particularly for China's atmospheric research.
- Far ultraviolet (FUV) spectroscopy is vital for understanding upper atmospheric phenomena like the ionosphere, thermosphere, and auroral zones.
Purpose:
- To design and develop a far ultraviolet imaging spectrometer prototype for atmospheric remote sensing.
- To achieve high spectral and spatial resolution for detailed atmospheric analysis.
Summary:
- Two optical systems were designed, leading to a plane grating structure prototype for nadir and limb atmospheric sounding.
- The spectrometer operates in the 120-180 nm waveband, utilizing an off-axis parabolic mirror, Czerny-Turner system, and a back-illuminating CCD detector.
- Calibration experiments confirmed spectral resolution of 2 nm and spatial resolution of 0.5 mrad.
Impact:
- The developed spectrometer prototype is essential for advancing atmospheric remote sensing studies and applications in China.
- Provides critical data for monitoring and understanding dynamic atmospheric processes and space weather.
- Enhances capabilities for ionospheric and thermospheric research using FUV imaging spectroscopy.
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