Transient effects and pump depletion in stimulated Raman scattering. [Para-hydrogen]
Conference
·
OSTI ID:5920804
Stimulated rotational Raman scattering in a 300-K multipass cell filled with para-H/sub 2/ with a single-mode CO/sub 2/-pumped laser is studied using a frequency-narrowed optical parametric oscillator (OPO) as a probe laser at the Stokes frequency for the S/sub 0/(O) transition. Amplification and pump depletion are examined as a function of incident pump energy. The pump depletion shows clear evidence of transient behavior. A theoretical treatment of transient stimulated Raman scattering, including effects of both pump depletion and medium saturation is presented. In a first approximation, diffraction effects are neglected, and only plane-wave interactions are considered. The theoretical results are compared to the experimental pulse shapes.
- Research Organization:
- Los Alamos National Lab., NM (USA); New Mexico Univ., Albuquerque (USA). Inst. for Modern Optics
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5920804
- Report Number(s):
- LA-UR-83-1851; CONF-830425-32; ON: DE83014139
- Country of Publication:
- United States
- Language:
- English
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