An assessment of the use of CARS for remote sensing

Technical Report · Thu Apr 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10167981· OSTI ID:10167981

Barletta, R E

With the increased interest in controlling the manufacture of chemical weapons (CW) agents globally as well as the interest in controlling the development and spread of nuclear weapons has come a concomitant need for the development instrumentation which will allow for either remote or clandestine surveillance of potential production and transportation facilities. The ability to monitor the effluent of a suspected weapon`s production plant from distances on the order of kilometers would provide the basis for treaty verification or for intelligence gathering. A number of potential techniques for accomplishing these ends are currently under development. In particular a technique based upon identification of the constituents of a mixture based upon the vibrational spectrum obtained using Raman spectroscopy is under development. Because this approach has range limitation due to the frequency of light being used for interrogation other methods which can accomplish the same ends even more remotely are of interest. To this end, a review of the appropriate literature has been conducted and the results of this review with respect to the application of coherent anti-Stokes Raman spectroscopy (CARS) to the remote detection of chemicals of interest has been conducted. This study is more limited in scope than a detailed developmental program which is currently being under taken by DESE Research, Inc. and is limited to the question as to whether CARS possesses adequate sensitivity to be used as a remote sensing technique. Since current interest in remote sensing centers around detection of CW production in conjunction with the recently signed international convention in this area, the detection of CW agents and simulants is given prominence in this discussion. The use of CARS for microscopic detection of such controlled materials, while not explicitly considered in this report, is a further application of the technology.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10167981
• Report Number(s): BNL--49036; ON: DE93016736
• Country of Publication: United States
• Language: English

Related Subjects

350300
42 ENGINEERING
420200
440600
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450600
47 OTHER INSTRUMENTATION
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CHEMICAL AND BIOLOGICAL
CHEMICAL WARFARE AGENTS
FACILITIES, EQUIPMENT, AND TECHNIQUES
FEASIBILITY STUDIES
OPTICAL INSTRUMENTATION
RAMAN SPECTROSCOPY
REMOTE SENSING
SENSITIVITY
SURVEILLANCE
VERIFICATION
VIBRATIONAL STATES