Application of Non-Local Effects to Lasers and Plasma Chemistry in Flowing-Gas and Pulsed Electric Discharges.

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-06-C-0114
Agency Tracking Number: F064-038-0247
Amount: $99,998.00
Phase: Phase I
Program: STTR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: AF06-T038
Solicitation Number: N/A
Small Business Information
2766 Indian Ripple Rd, Dayton, OH, 45440
DUNS: 884812025
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Peter Bletzinger
 Senior Physicists
 (937) 252-2706
Business Contact
 Larry Goss
Title: President
Phone: (937) 429-4980
Research Institution
 Thomas L Boozer
 316 E Cullin Bldg
Houston, TX, 77204
 (713) 743-9104
 Nonprofit college or university
Oxygen and/or air plasmas are widely used in different processes such as etching, purifying, ashing, surface cleaning, ozone generation and for electrical oxygen/iodine laser discharges. The oxygen plasma is an important example of electronegative plasmas and has been widely studied and modeled, including non-local effects due to discharge boundaries, low pressure or unsteady-state or afterglow operation. The proposed Phase I program will investigate the so far neglected effect of the relatively high energy electrons created by associative detachment of negative ions. For some conditions, these electrons can form a major portion of the electron population and causing additional non-local effects. The contribution to the electron energy distribution by the detached electrons will be investigated, and the model will include these additional non-local effects. Appropriate modeling approaches will be considered for pulsed and flowing gas plasmas. Beneficial effects or controls using the non-local effects will be investigated. In a following Phase II program, further refinements of the model will be performed and example technical plasmas will be tested experimentally. The oxygen plasma is widely used and a more accurate model and possible improvements due to better understanding of the plasma kinetics will be important for both commercial and military applications.

* information listed above is at the time of submission.

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