Spectro-polarimetric imager

Details Spectro-polarimetric imager Spectro-polarimetric imager

1998-02-05

2000-05-16

Sugarman, Scott J.

Optical: systems and elements

Optical modulator

Light wave directional modulation

359309, 356327, G02F 133, G02F 135

Patent

active

060645105

ABSTRACT:
An electronically agile spectro-polarimetric imager is described in which an acousto-optic tunable spectral filter (AOTF) is located in series with an electronically tunable optical phase modulation plate such that incident radiation will pass through the modulation plate and the AOTF in sequence. This system makes it possible to perform both spectral analysis, complex polarization analysis and object discrimination at video-rates of incident radiation from complex target scenes according to the spectral content and polarization state of the radiation reflected or emitted from the objects within the scene, regardless of the polarization state of the incident radiation. Embodiments for analyzing incident radiation of various wavelengths are provided.

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patent: 5611004 (1997-03-01), Chang et al.

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