Ballistic Imaging for Dense Spray Diagnostics in Harsh Chemically Reacting Environments

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-08-C-0030
Agency Tracking Number: F064-009-0437
Amount: $749,952.00
Phase: Phase II
Program: STTR
Awards Year: 2008
Solicitation Year: 2006
Solicitation Topic Code: AF06-T009
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
 Sivaram Gogineni
 Senior Engineer
 (937) 255-8446
 gosslp@innssi.com
Business Contact
 Larry Goss
Title: President
Phone: (937) 429-4980
Email: gosslp@innssi.com
Research Institution
 IOWA STATE UNIV.
 Diane Meyer
 1138 Peerson Hall
Ames, IA, 50011 2207
 (515) 294-4567
 Nonprofit college or university
Abstract
The primary objective of this Phase-II research effort will be to build, deliver, and test a next-generation time-domain ballistic photon imaging (BPI) system based on ultrafast lasers for characterizing the two-phase combustion region within bi-propellant rocket engines. This will include integration into a rocket facility of choice for the Air Force Office of Scientific Research and the Air Force Research Laboratory. Preparations will be conducted in consultation with researchers at Edwards AFB and our industry partner, Aerojet Corporation. This work will build upon the successful application of the BPI technique in various sprays during the Phase-I research activities. The unique feature of BPI is that it can circumvent the difficulties associated with propagating light through dense media. Through the combined use of ultrafast time gating, polarization gating, and spatial filtering, photons that propagate without interference (i.e., ballistic photons) are preferentially detected over photons that undergo significant beam steering or multiple scattering. In addition to ballistic photon imaging, the delivered diagnostic hardware will provide an ultrafast laser source that is the key element for a number of emerging diagnostic approaches, including Terahertz spectroscopy and ultrafast coherent anti-Stokes Raman scattering. In this manner, the current effort will lay the foundation for a versatile ultrafast laser diagnostic system for harsh chemically reacting environments.

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

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