Title :
Self-channeling of femtosecond laser pulses for rapid and efficient standoff detection of energetic materials
Author :
Baudelet, Matthieu ; Richardson, Martin ; Sigman, Michael
Author_Institution :
Townes laser Inst., Univ. of Central Florida, Orlando, FL, USA
Abstract :
Self-channeling properties of high intensity laser pulses are used to extend spectroscopic methods as LIBS to standoff. This work shows the advantages of using self-channeled femtosecond pulses in laser-induced breakdown spectroscopy of polymeric micrometer-size thin films in a standoff configuration at 12 meters. We show the possibility of trace analysis on surfaces and the importance of molecular signal as a signature for carbon-based samples.
Keywords :
high-speed optical techniques; laser beams; measurement by laser beam; polymer films; spectrochemical analysis; thin films; visible spectra; LIBS; energetic material; femtosecond laser pulse; laser-induced breakdown spectroscopy; molecular signal; polymeric micrometer-size thin film; self-channeling; spectroscopic method; standoff detection; trace analysis; Chemical lasers; Electric breakdown; Laser beams; Laser modes; Laser theory; Optical materials; Optical propagation; Optical pulses; Spectroscopy; Ultrafast optics;
Conference_Titel :
Technologies for Homeland Security, 2009. HST '09. IEEE Conference on
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-4178-5
DOI :
10.1109/THS.2009.5168075
