Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Portable Technique Could Detect Anthrax

Photonics Spectra
Sep 2002
A proposed form of coherent anti-Stokes Raman spectroscopy shows promise in distinguishing anthrax spores from other organic compounds. Like conventional anti-Stokes Raman techniques, the procedure would apply two laser pulses to heighten coherence in the vibrational states of molecules of interest and a third pulse to extract an anti-Stokes signature.

The approach, outlined in the Aug. 20 Proceedings of the National Academy of Sciences, induces maximal ground-state coherence in a sample, which runs counter to conventional anti-Stokes techniques. This could help detect specific organic molecules, such as anthrax, against a broad background of materials.

The study was funded by the Defense Advanced Research Projects Agency through the Office of Naval Research. It was conducted at Texas A&M University in College Station with help from scientists in Germany, Czech Republic, Pakistan and Bozeman, Mont.

As We Go To PressBreaking NewsdefensePresstime Bulletinspectroscopy

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,
x Subscribe to Photonics Spectra magazine - FREE!