Optimizing the laser-pulse configuration for coherent Raman spectroscopy. Academic Article uri icon

abstract

  • We introduce a hybrid technique that combines the robustness of frequency-resolved coherent anti-Stokes Raman scattering (CARS) with the advantages of time-resolved CARS spectroscopy. Instantaneous coherent broadband excitation of several characteristic molecular vibrations and the subsequent probing of these vibrations by an optimally shaped time-delayed narrowband laser pulse help to suppress the nonresonant background and to retrieve the species-specific signal. We used this technique for coherent Raman spectroscopy of sodium dipicolinate powder, which is similar to calcium dipicolinate (a marker molecule for bacterial endospores, such as Bacillus subtilis and Bacillus anthracis), and we demonstrated a rapid and highly specific detection scheme that works even in the presence of multiple scattering.

published proceedings

  • Science

altmetric score

  • 3

author list (cited authors)

  • Pestov, D., Murawski, R. K., Ariunbold, G. O., Wang, X. i., Zhi, M., Sokolov, A. V., ... Scully, M. O.

citation count

  • 275

complete list of authors

  • Pestov, Dmitry||Murawski, Robert K||Ariunbold, Gombojav O||Wang, Xi||Zhi, Miaochan||Sokolov, Alexei V||Sautenkov, Vladimir A||Rostovtsev, Yuri V||Dogariu, Arthur||Huang, Yu||Scully, Marlan O

publication date

  • April 2007