White Light Achromatic Grating Imaging Polarimeter

Researchers at the University of Arizona have developed white light polarization-grating-based imaging polarimeters and associated methods. These "snapshot" imaging polarimeters operate over broad wavelength ranges, including thermal infrared and visible wavelengths. The polarization gratings produce a shear between first and second polarization components of received radiation flux.

Advantages:

• Higher signal-to-noise ratio and contrast
• Able to operate in LWIR and visible
• Snapshot capability eliminates registration problems

Applications:

• Remote sensing
• Inspection

Status: issued US Patent #9,074,993