Accession Number:

ADA399433

Title:

New AOTF Technology for IR Hyperspectral Imaging

Descriptive Note:

Conference Proceedings

Corporate Author:

BRIMROSE CORP OF AMERICA BALTIMORE MD

Personal Author(s):

• Pelekhaty, Vladimir
• Wang, Xiaolu
• Paulsen, Duane E.

Report Date:

1998-03-03

Pagination or Media Count:

14.0

Abstract:

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.

Descriptors:

• *INFRARED IMAGES
• *ACOUSTOOPTICS
• *HYPERSPECTRAL IMAGERY
• LOW POWER
• OPTICAL PROPERTIES
• SYMPOSIA
• REAL TIME
• HIGH RESOLUTION
• DIFFRACTION
• THROUGHPUT
• VISIBLE SPECTRA
• INFRARED DETECTORS
• EXHAUST PLUMES
• NEAR INFRARED RADIATION
• WIDE ANGLES
• RADIOFREQUENCY POWER
• ROCKET EXHAUST
• FOCAL PLANE ARRAYS

Subject Categories:

• Acoustooptic and Optoacoustic Devices
• Acoustic Countermeasures

Distribution Statement:

APPROVED FOR PUBLIC RELEASE