29 May 2013 Detection of liquid hazardous molecules using linearly focused Raman spectroscopy
Author Affiliations +
In security, it is an important issue to analyze hazardous materials in sealed bottles. Particularly, prompt nondestructive checking of sealed liquid bottles in a very short time at the checkpoints of crowded malls, stadiums, or airports is of particular importance to prevent probable terrorist attack using liquid explosives. Aiming to design and fabricate a detector for liquid explosives, we have used linearly focused Raman spectroscopy to analyze liquid materials in transparent or semi-transparent bottles without opening their caps. Continuous lasers with 532 nm wavelength and 58 mW/130 mW beam energy have been used for the Raman spectroscopy. Various hazardous materials including flammable liquids and explosive materials have successfully been distinguished and identified within a couple of seconds. We believe that our technique will be one of suitable methods for fast screening of liquid materials in sealed bottles.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Soo Gyeong Cho, Soo Gyeong Cho, Jin Hyuk Chung, Jin Hyuk Chung, } "Detection of liquid hazardous molecules using linearly focused Raman spectroscopy", Proc. SPIE 8721, Sensing for Agriculture and Food Quality and Safety V, 87210U (29 May 2013); doi: 10.1117/12.2020834; https://doi.org/10.1117/12.2020834

Back to Top