Accession Number:

ADA429950

Title:

Ultrafast Spectroscopy of Energetic Materials: Toward a Molecular Understanding of Impact Sensitivity

Descriptive Note:

Final rept. 1 Apr 2000-31 Dec 2004

Corporate Author:

ILLINOIS UNIV AT URBANA

Personal Author(s):

Report Date:

2005-01-12

Pagination or Media Count:

8.0

Abstract:

We have progress to report in three areas 1 fast vibrational spectroscopy of nanoenergetic material ignition 2 ultrafast surface spectroscopy 3 3D spectroscopy of ultrafast vibrational energy transfer. The original goals of this project have not changed, however we have extended our work to include nanotechnology energetic materials. We developed a fast laser-ignition technique for these materials and have successfully probed the time and space dependence of chemistry of Al oxidizer systems. Using vibrational sum-frequency generation SFG we have probed the structure of shock fronts with 1.5 Angstrom resolution. With 3D spectroscopy we have studied vibrational energy transfer in water and for the first time we have been able to watch vibrational energy flow across the interface between a molecular nanostructure and its surroundings.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE