Spectral calibration of programmable imaging spectrometer

2015 ◽  
Author(s):  
Guojun Du ◽  
Zhibo Liao ◽  
Wenchun Jiao ◽  
Xiaoying Zong ◽  
Xuhua He ◽  
...  
Keyword(s):  
Imaging Spectrometer ◽  
Spectral Calibration ◽  
Programmable Imaging

Spectral Calibration of Imaging Spectrometer

2011 ◽  
Vol 28 (11) ◽  
pp. 48-51 ◽  
Author(s):  
裴 舒 PEI Shu
Keyword(s):  
Imaging Spectrometer ◽  
Spectral Calibration

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.

scholarly journals Key techniques for spectrally programmable imaging spectrometer based on AOTF

2013 ◽  
Vol 32 (3) ◽  
pp. 237
Author(s):  
Ji-Fan LIU ◽  
Yan-Hua MA ◽  
Lei ZHANG ◽  
Rong SHU
Keyword(s):  
Imaging Spectrometer ◽  
Programmable Imaging ◽  
Key Techniques

Laboratory Spectral Calibration Method of Grating Dispersive Imaging Spectrometer

2013 ◽  
Vol 50 (2) ◽  
pp. 023001
Author(s):  
马亮 Ma Liang ◽  
危峻 Wei Jun ◽  
黄小仙 Huang Xiaoxian ◽  
崔毅 Cui Yi ◽  
张晓 Zhang Xiao
Keyword(s):  
Calibration Method ◽  
Imaging Spectrometer ◽  
Spectral Calibration
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