Narrow Bandwidth, Tunable, Holographic Filters for Solar Atmospheric Studies

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 22611
Amount: $69,824.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Accuwave Corp.
1651 19th Street, Santa Monica, CA, 90404
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George A. Rakuljic
 (301) 449-5540
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Narrow bandwidth filters using holographic reflection gratings will be developed for application in solar atmospheric studies, where rapid wavelength tunability over about a 1 A range is required. A holographic grating filter for monochromatic imaging at the Ha line has already been demonstrated by Accuwave Corporation, with 0.12 A bandwidth (FWHM) and -30 dB sidelobe levels at l.1 A from the peak. Techniques for improving this basic filter by incorporating rapid wavelength tunability, materials for holographic filters at wavelengths shorter than Ha such as the CaII line, and improvements in optical throughput, resolution, and field of view will be investigated.

* information listed above is at the time of submission.

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