Trace explosives residues of CL20 (hexanitrohexazaisowurtzitane) and RDX (hexahydro-1,3,5-hexanitro-1,3,5-triazine are measured in real-time by surface laser photofragmentation-fragment detection (SPFFD) spectroscopy at ambient conditions. A 248nm laser photofragments the target residue on a substrate, and a 226-nm laser ionizes the resulting NO fragment by resonance-enhanced multiphoton ioniza...

RIKEN Plant Science Center, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan (Y.S.-S., Y.J., Y.K., K.S.); Graduate School of Information Sciences, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8579, Japan (T.O.); Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa 226-8501, Japan (H.S.); Center for Biological Resources and Informatics, To...