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Matched and Ultra-Low CTE Optical Materials

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-05-C-7288
Agency Tracking Number: 05-0116T
Amount: $99,985.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: MDA05-T021
Solicitation Number: N/A
Solicitation Year: 2005
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-09-13
Award End Date (Contract End Date): 2006-03-13
Small Business Information
3120 Leeman Ferry Road
Huntsville, AL 35801
United States
DUNS: 151305088
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Paul Gierow
 Principal Investigator
 (256) 509-9348
Business Contact
 Paul Gierow
Title: President
Phone: (256) 509-9348
Research Institution
 Shelia Lien
501 East St.Joseph
Rapid City, SD 57707
United States

 (605) 394-1213
 Nonprofit College or University

A new material and processing technology is proposed that will dramatically reduce the cost of manufacturing lightweight mirrors for optical test applications. Such precision mirrors are also required for surveillance, directed energy, and DoD-sponsored space programs. There is a significant amount of research devoted to developing materials and processes for space-born mirrors and ground test use. Carbon fiber mirrors and advanced ceramic (SiC) mirrors are being developed. These materials provide excellent stiffness to weight ratios and thermal stability. The principal problem with using these lightweight materials for mirrors is the difficulty of polishing and length of time it takes to achieve the optical quality surface finish and scale up to large diameters. GATR is proposing to demonstrate a process for depositing a very thin, optical-quality membrane layer to reduce the polishing step. The key elemental innovation is the use of an optically tolerant fabrication process using a specially developed polyimide which has a matched substrate CTE. These polyimides are cryogenic compliant and can be cast on flats, off-axis and on-axis mirrors. The STTR will investigate the possible use of ultra-low CTE membrane optics as well as matched CTE over layers on Aluminum of SiC unpolished surfaces.

* Information listed above is at the time of submission. *

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