New Microslice Technology for Hyperspectral Imaging

We present the results of a project to develop a proof of concept for a novel hyperspectral imager based on the use of advanced micro-optics technology. The technology gives considerably more spatial elements than a classic pushbroom which translates into far more light being integrated per unit of...

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Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2013-03, Vol.5 (3), p.1204-1219
Main Authors: Content, Robert, Blake, Simon, Dunlop, Colin, Nandi, David, Sharples, Ray, Talbot, Gordon, Shanks, Tom, Donoghue, Danny, Galiatsatos, Nikolaos, Luke, Peter
Format: Article
Language:English
Subjects:
Chlorophyll
Electronic mail systems
Field tests
Fourier transforms
hyperspectral imaging
Integral Field Unit
microslice
Optics
Pollutants
Remote sensing
Sensors
spectroscopy
Spectrum analysis
staring hyperspectral imager
Vegetation mapping
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Summary:We present the results of a project to develop a proof of concept for a novel hyperspectral imager based on the use of advanced micro-optics technology. The technology gives considerably more spatial elements than a classic pushbroom which translates into far more light being integrated per unit of time. This permits us to observe at higher spatial and/or spectral resolution, darker targets and under lower illumination, as in the early morning. Observations of faint glow at night should also be possible but need further studies. A full instrument for laboratory demonstration and field tests has now been built and tested. It has about 10,000 spatial elements and spectra 150 pixel long. It is made of a set of cylindrical fore-optics followed by a new innovative optical system called a microslice Integral Field Unit (IFU) which is itself followed by a standard spectrograph. The fore-optics plus microslice IFU split the field into a large number of small slit-like images that are dispersed in the spectrograph. Our goal is to build instruments with at least hundreds of thousands of spatial elements.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs5031204