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

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 12, 2005
Accession Number
ADA429950

Entities

People

  • Dana D. Dlott

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Advanced Electronics
  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemistry
  • Energetic Materials
  • Energy
  • Energy Transfer
  • Frequency
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Molecular Dynamics
  • Nanoenergetics
  • Nanoparticles
  • Nanotechnology
  • Self Assembled Monolayers
  • Spectroscopy
  • Vibrational Relaxation

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Nanoscale Plasmonic Nanotechnology
  • Quantum Chemistry

Technology Areas

  • Biotechnology
  • Directed Energy
  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster