Stand-off detection and classification of CBRNe using a Lidar system based on a high power femtosecond laser

Jun Izawa; Takeshi Yokozawa; Takao Kurata; Akihiro Yoshida; Yasushi Mastunaga; Toshihiro Somekawa; Shuzo Eto; Naohiro Manago; Hideyuki Horisawa; Shigeru Yamaguchi; Takashi Fujii; Hiroaki Kuze

doi:10.1117/12.2067005

7 October 2014 Stand-off detection and classification of CBRNe using a Lidar system based on a high power femtosecond laser

Jun Izawa, Takeshi Yokozawa, Takao Kurata, Akihiro Yoshida, Yasushi Mastunaga, Toshihiro Somekawa, Shuzo Eto, Naohiro Manago, Hideyuki Horisawa, Shigeru Yamaguchi, Takashi Fujii, Hiroaki Kuze

Author Affiliations +

Proceedings Volume 9253, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI; 92530C (2014) https://doi.org/10.1117/12.2067005
Event: SPIE Security + Defence, 2014, Amsterdam, Netherlands

Abstract

We propose a stand-off system that enables detection and classification of CBRNe (Chemical, Biological, Radioactive, Nuclear aerosol and explosive solids). The system is an integrated lidar using a high-power (terawatt) femtosecond laser. The detection and classification of various hazardous targets with stand-off distances from several hundred meters to a few kilometers are achieved by means of laser-induced breakdown spectroscopy (LIBS) and two-photon fluorescence (TPF) techniques. In this work, we report on the technical considerations on the system design of the present hybrid lidar system consisting of a nanosecond laser and a femtosecond laser. Also, we describe the current progress in our laboratory experiments that have demonstrated the stand-off detection and classification of various simulants. For the R and N detection scheme, cesium chloride aerosols have successfully been detected by LIBS using a high-power femtosecond laser. For the B detection scheme, TPF signals of organic aerosols such as riboflavin have clearly been recorded. In addition, a compact femtosecond laser has been employed for the LIBS classification of organic plastics employed as e-simulants.

Citation Download Citation

Jun Izawa, Takeshi Yokozawa, Takao Kurata, Akihiro Yoshida, Yasushi Mastunaga, Toshihiro Somekawa, Shuzo Eto, Naohiro Manago, Hideyuki Horisawa, Shigeru Yamaguchi, Takashi Fujii, and Hiroaki Kuze "Stand-off detection and classification of CBRNe using a Lidar system based on a high power femtosecond laser", Proc. SPIE 9253, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI, 92530C (7 October 2014); https://doi.org/10.1117/12.2067005

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available