Raman Spectra and Cross Sections of Chemical Warfare Agents, Agent Simulants, and Explosives Using 213 NM Deep-Ultraviolet Laser Excitation
Abstract
A solid-state, deep-ultraviolet (DUV) laser operating at 213 nm was procured under the Foreign Technology Assessment Support (FTAS) program. The laser was characterized and integrated into a Raman test fixture to assess the lasers applicability for DUV resonance Raman spectroscopy. Under the FTAS program and a similar effort from the Joint Science and Technology Office of the Defense Threat Reduction Agency, this test bed was used to collect 213 nm Raman spectra for chemical warfare agents (CWAs), CWA simulants, and explosive materials and precursors. Raman cross sections were calculated for the CWAs and CWA simulants. Finally, an analysis was performed using previous DUV Raman cross sections to determine the trade-offs between the Raman scattering enhancement that occurs using shorter excitation sources and the signal reduction caused by higher optical absorption.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2018
- Accession Number
- AD1051864
Entities
People
- Erik D. Emmons
- Ian J. Pardoe
- Phillip G. Wilcox
Organizations
- Edgewood Chemical Biological Center