Visible and UV coherent Raman spectroscopy of dipicolinic acid.

@article{Pestov2005VisibleAU,
  title={Visible and UV coherent Raman spectroscopy of dipicolinic acid.},
  author={Dmitry Pestov and Miaochan Zhi and Zoe-Elizabeth Sariyanni and Nikolai G Kalugin and Al. A. Kolomenskiǐ and Robert K. Murawski and Gerhard G. Paulus and Vladimir A. Sautenkov and Hans A. Schuessler and Alexei V. Sokolov and George R. Welch and Yuri V. Rostovtsev and Torsten Siebert and Denis A. Akimov and Stefanie Graefe and Wolfgang Kiefer and Marlan O. Scully},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2005},
  volume={102 42},
  pages={
          14976-81
        }
}
  • D. Pestov, M. Zhi, M. Scully
  • Published 18 October 2005
  • Chemistry, Physics
  • Proceedings of the National Academy of Sciences of the United States of America
We use time-resolved coherent Raman spectroscopy to obtain molecule-specific signals from dipicolinic acid (DPA), which is a marker molecule for bacterial spores. We use femtosecond laser pulses in both visible and UV spectral regions and compare experimental results with theoretical predictions. By exciting vibrational coherence on more than one mode simultaneously, we observe a quantum beat signal that can be used to extract the parameters of molecular motion in DPA. The signal is enhanced… 

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References

SHOWING 1-10 OF 24 REFERENCES
Towards an anthrax detector using the femtosecond adaptive spectroscopic technique for coherent anti-Stokes Raman Spectroscopy: Coherent anti-Stokes Raman spectroscopy signal from dipicolinic acid in bacterial spores
Abstract We present experimental evidence of a resonant coherent anti-Stokes Raman spectroscopy (CARS) signal from dipicolinic acid, a marker molecule in anthrax spores. We also show some evidence of
Towards a FAST-CARS anthrax detector: Analysis of cars generation from DPA
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
Generation and propagation of a resonant CARS signal from biomolecules: Application to dipicolinic acid
Abstract We develop a theoretical approach and perform simulations of coherent anti-Stokes Raman scattering (CARS) with ultrashort laser pulses. The signal is generated by biomolecules having
FAST CARS: Engineering a laser spectroscopic technique for rapid identification of bacterial spores
TLDR
This article proposes and analyses ways in which it could be used to rapidly identify preselected molecules in real time and calls it FAST CARS (femtosecond adaptive spectroscopic techniques for coherent anti-Stokes Raman spectroscopy).
Ultrashort pulse generation by molecular modulation
This PhD Tutorial describes a new source of coherent radiation, with a spectrum extending over many octaves of optical bandwidth. We demonstrate collinear generation of mutually coherent spectral
Towards a FAST-CARS anthrax detector: CARS generation in a DPA surrogate molecule
Abstract Coherent anti-Stokes Raman spectroscopy (CARS) has been investigated as a detection method for the identification of dipicolinic acid (DPA), a marker molecule for bacterial spores of
Subfemtosecond pulse generation by molecular modulation
This Letter suggests and analyzes a technique for producing subfemtosecond pulses of radiation. We will show that two laser beams whose frequency difference is slightly offset from a molecular
Observation of ultraslow and stored light pulses in a solid.
TLDR
Low group velocities of light in an optically dense crystal of Pr doped Y2SiO5 are reported by using a sharp spectral feature in absorption and dispersion that is produced by resonance Raman excitation of a ground-state spin coherence.
...
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