Design study of a broadband high-spatial-resolutionhigh-spectral-resolution flexible imaging spectrometer

2021 ◽  
Author(s):  
Qinghua Yang
Keyword(s):  
Spectral Resolution ◽  
Design Study ◽  
Imaging Spectrometer ◽  
Flexible Imaging

Sacrificial charge and the spectral resolution performance of the Chandra advanced CCD imaging spectrometer

2003 ◽  
Author(s):  
Catherine E. Grant ◽  
Gregory Y. Prigozhin ◽  
Beverly LaMarr ◽  
Mark W. Bautz
Keyword(s):  
Spectral Resolution ◽  
Imaging Spectrometer ◽  
Ccd Imaging

scholarly journals Spectral and Spatial Characterization and Calibration of FIFI-LS — The Field Imaging Spectrometer on SOFIA

2018 ◽  
Vol 07 (04) ◽  
pp. 1840004 ◽  
Author(s):  
Sebastian Colditz ◽  
Simon Beckmann ◽  
Aaron Bryant ◽  
Christian Fischer ◽  
Fabio Fumi ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
Far Infrared ◽  
Imaging Spectrometer ◽  
Line Spread Function ◽  
Spatial Characterization ◽  
Spectral Calibration ◽  
Blue Channel ◽  
Spread Function ◽  
Field Imaging ◽  
Science Instrument

The field-imaging far-infrared line spectrometer (FIFI-LS) is a science instrument for the Stratospheric Observatory for Infrared Astronomy (SOFIA). FIFI-LS allows simultaneous observations in two spectral channels. The “blue” channel is sensitive from 51[Formula: see text][Formula: see text]m to 125[Formula: see text][Formula: see text]m and the “red” channel from 115[Formula: see text][Formula: see text]m to 203[Formula: see text][Formula: see text]m. The instantaneous spectral coverage is 1000–3000[Formula: see text]km/s in the blue and 800–2500[Formula: see text]km/s in the red channel with a spectral resolution between 150[Formula: see text]km/s and 600[Formula: see text]km/s. Each spectral channel observes a field of five by five spatial pixels on the sky. The pixel size in the blue channel is 6.14 by 6.25 square arc seconds and it is 12.2 by 12.5 square arc seconds in the red channel. FIFI-LS has been operating on SOFIA since 2014. It is available to the astronomical community as a facility science instrument. We present the results of the spectral and spatial characterization of the instrument based on laboratory measurements. This includes the measured spectral resolution and examples of the line spread function in the spectral domain. In the spatial domain, a model of the instrument’s point spread function (PSF) and the description of a second pass ghost are presented. We also provide an overview of the procedures used to measure the instrument’s field of view geometry and spectral calibration. The spectral calibration yields an accuracy of 15–60[Formula: see text]km/s depending on wavelength.

Analysis and Optical Design of Very High Spectral Resolution Imaging Spectrometer of the Atmospheric CO2

2015 ◽  
Vol 35 (7) ◽  
pp. 0722001
Author(s):  
宋文宝 Song Wenbao ◽  
靳阳明 Jin Yangming ◽  
赵知诚 Zhao Zhicheng ◽  
沈为民 Shen Weimin ◽  
范东栋 Fan Dongdong
Keyword(s):  
Spectral Resolution ◽  
Optical Design ◽  
Atmospheric Co2 ◽  
High Spectral Resolution ◽  
Imaging Spectrometer ◽  
Resolution Imaging ◽  
Very High

Research of Wavelength Range and Spectral Resolution for Offner Imaging Spectrometer

2014 ◽  
Vol 43 (7) ◽  
pp. 730004
Author(s):  
裴梓任 PEI Ziren ◽  
黄元申 HUANG Yuanshen ◽  
张大伟 ZHANG Dawei ◽  
韩姗 HAN Shan ◽  
瑞金 HONG Ruijin ◽  
...  
Keyword(s):  
Wavelength Range ◽  
Spectral Resolution ◽  
Imaging Spectrometer
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