Towards a FAST-CARS anthrax detector: Analysis of cars generation from DPA Conference Paper uri icon

abstract

  • Femtosecond coherent anti-Stokes Raman spectroscopy (CARS) of dipicolinic acid (DPA), a marker molecule for bacterial spores of anthrax, has been investigated. The temporal evolution of the CARS response of DPA was examined using two ultrafast pulses to pump the DPA and a third pulse to probe the response. In one set of experiments, a single detector recorded the temporal behaviour of the signal as a function of different pump conditions. In another set of experiments, the full anti-Stokes spectrum was recorded as a function of probe delay. The data from both experiments displayed a strong, instantaneous response and a structured transient response. The implications of these data for molecular detection are discussed. 2004 Taylor & Francis Group, LLC.

published proceedings

  • Journal of Modern Optics

author list (cited authors)

  • Beadie, G., Bashkansky, M., Reintjes, J., & Scully, M. O.

citation count

  • 12

complete list of authors

  • Beadie, G||Bashkansky, M||Reintjes, J||Scully, MO

publication date

  • November 2004