A Snapshot Imaging Spectropolarimeter
ARMY TANK-AUTOMOTIVE COMMAND WARREN MI
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A revolutionary technique for snapshot imaging spectropolarimetry has been developed because of the recent availability of large focal plane arrays and fast computers. The technique involves the combination of spectropolarimetry with computed tomography imaging spectrometry CTIS. This spectropolarimeter uses a modulation to encode the spectral dependence of all four Stokes parameters in a single spectrum. CTIS is a snapshot imaging spectrometry method in which both spatial and spectral information is reconstructed using the inverse mathematical technique of medical computed tomography. The combination of these techniques provides the basis for a snapshot imaging complete Stokes spectropolarimeter that can be implemented with no moving parts. This technique is being applied to the SWIR wavelength region to find targets that are camouflaged.
- Medicine and Medical Research