Metal Mesh Filters for Terahertz Receivers

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,950.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
NNC06CB68C
Agency Tracking Number:
040485
Solicitation Year:
2004
Solicitation Topic Code:
S2.01
Solicitation Number:
n/a
Small Business Information
Virginia Diodes, Inc.
979 Second Street SE, Suite 309, Charlottesville, VA, 22902-6172
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
788159445
Principal Investigator:
Jeffrey Hesler
Principal Investigator
(434) 297-3257
Hesler@VADiodes.com
Business Contact:
Thomas Crowe
Business Official
(434) 297-3257
crowe@vadiodes.com
Research Institution:
n/a
Abstract
The technical objective of this SBIR program is to develop and demonstrate metal mesh filters for use in NASA's low noise receivers for terahertz astronomy and atmospheric studies. Metal mesh filters, based on a free-standing sheet of metal with a periodic area of apertures, have been used for many years. However, they have proven to be extremely difficult and costly to fabricate and are not presently available over a large part of the terahertz frequency band (100 GHz through 10 THz). Also, the terahertz filters that are available from commercial suppliers tend to have unacceptable loss in the pass-band (20% or more) and often cost over one thousand dollars per filter. Through this program VDI is developing new fabrication processes and mesh designs that will improve performance and greatly reduce costs. Successful completion of this program will make the filters available for NASA's terahertz missions, facilitate the development of improved terahertz detectors (by facilitating bolometer calibration and testing) and also make the filters commercially available for the greater range of terahertz applications that are now emerging, such as imaging systems and spectrometers.

* information listed above is at the time of submission.

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