Brillouin Spectroscopy Data Base for Biological Threats
Abstract
Brillouin scattering from biological materials is conducted using a tandem Fabry-Perot interferometer. The interferometer is uniquely designed to measure small frequency shifts that are characteristic of Brillouin scattering. Brillouin scattering from DNA, ovalbumen, the Bacillus spores globigii and thuringiensis were measured to determine the feasibility of biological material discrimination using Brillouin scattering. It was found that all biological materials exhibited unique Brillouin spectra and that it was possible to discern Bacillus spores at the species level. It is concluded that Brillouin spectroscopy has great potential as an optical tool for the detection and discrimination of threat biological materials. The only limitation in this approach is that the cross sections are small, and the tool is best suited for either point detection or short distance remote detection.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2003
- Accession Number
- ADA421126
Entities
People
- Glenn O. Rubel
- Kwok H. Fung
Organizations
- Edgewood Chemical Biological Center