Physical effects in time-domain CARS (coherent antistokes Raman spectroscopy) of molecular gases

Dmitry V. Kolomoitsev; Sergei Yu. Nikitin

doi:10.1117/12.47487

1 April 1991 Physical effects in time-domain CARS (coherent antistokes Raman spectroscopy) of molecular gases

Dmitry V. Kolomoitsev, Sergei Yu. Nikitin

Proceedings Volume 1402, USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes; (1991) https://doi.org/10.1117/12.47487
Event: USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics and Modeling, 1990, Koshice-Prague, Czechoslovakia

Abstract

Physical effects which have been observed in molecular gases by time-domain coherent antistokes Raman spectroscopy are described. Namely the slowing down of molecular vibrations doppler dephasing under the gas pressure increase (Dicke''s effect) quantum beats collisional frequency exchange. Experimental data dealing with molecules of hydrogen nitrogen and ammonia are presented. The physical mechanisms and calculation methods of effects mentioned above are discussed. The influence of laser pulses incoherence on the time-domain CARS signal is considered.

Citation Download Citation

Dmitry V. Kolomoitsev and Sergei Yu. Nikitin "Physical effects in time-domain CARS (coherent antistokes Raman spectroscopy) of molecular gases", Proc. SPIE 1402, USSR-CSFR Joint Seminar on Nonlinear Optics in Control, Diagnostics, and Modeling of Biophysical Processes, (1 April 1991); https://doi.org/10.1117/12.47487

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