Optical Grade Sapphire Manufacturing Growth Process for IR Window Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-10-M-5153
Agency Tracking Number: F101-001-0007
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solitcitation Year: 2010
Solitcitation Topic Code: AF101C-001
Solitcitation Number: 2010.1
Small Business Information
Rubicon Technology, Inc.
9931 Franklin Avenue, Franklin Park, IL, 60131
Duns: 967266123
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jonathan Levine
 Crystal Growth Engineer
 (847) 457-3440
 jlevine@rubicon-es2.com
Business Contact
 William Weissman
Title: Chief Financial Officer
Phone: (847) 457-3610
Email: bweissman@rubicon-es2.com
Research Institution
N/A
Abstract
Sapphire possesses a number of physical properties, including high strength, high melting point, chemical inertness, and excellent transparency in the visible and IR spectrum, which make it an attractive window material for military applications. Until recently, the largest detrimental factor has been the small size of available crystals. However, crystal growth capabilities have advanced to where large, single crystal sapphire windows are now realizable. During Phase I, Rubicon Technology, with their extensive experience in bulk sapphire crystal growth, will investigate the feasibility of producing optical grade sapphire blanks for use as IR windows. Research efforts will focus on designing and demonstrating a horizontal furnace capable of producing sapphire windows with minimum post-processing dimensions of 14” x 20” x 1”. BENEFIT: The ability to provide c-plane sapphire will address new markets where application are currently not serviceable by current sapphire products due to limitations in window size and thickness and/or concerns over strength or optical quality of the material. Some specific target markets include commercial aircraft and commercial shipping which will benefit from the enhanced optical qualities as well as enhanced strength of the c-plane material. In addition, many applications for clear armor currently rely on less effective materials that could be improved by utilizing sapphire windows.

* information listed above is at the time of submission.

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