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New AOTF Technology for IR Hyperspectral Imaging
BRIMROSE CORP OF AMERICA BALTIMORE MD
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We have developed a new Acousto-Optic Tunable Filter AOTF for implementation as a spectrally selective element for hyperspectral imaging applications in the NIR .8 - 1.7 micron and MWIR 2.5 - 4.5 micron ranges of the optical spectrum. The new AOTF has high spectral resolution about 3cm and requires relatively low RF drive power. It has a broad acceptance angle and increased diffraction efficiency for enhanced optical throughput. In combination with a 2-D IR focal plane array the new AOTF allows for real time hyperspectral imaging of both self-emitting sources, such as astronomical objects or rocket exhaust plumes, and externally illuminated absorbingreflecting specimens.
APPROVED FOR PUBLIC RELEASE