Open AccessTHRESHOLD AND ENERGY TRANSFER EFFICIENCY IN HIGH PRESSURE HYDROGEN SRS
Author(s) -
Yong Guo,
Ding Hai-Shu,
Yao Min-Yan,
Caiyun Lou,
Gang Li,
Shouhuan Zhou
Publication year - 1985
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.34.24
Subject(s) - laser linewidth , raman scattering , materials science , atomic physics , dispersion (optics) , laser , work (physics) , raman spectroscopy , optics , physics , thermodynamics
In this work, the influences of several parameters (molecular density of medium, transition linewidth, photon density of pump laser and nonlinear interaction length) on high pressure H2 stimulated Raman scattering (SRS) threshold and energy transfer efficiency are investigated. The experiments were carried out on a Q(1) line vibration transition (4155 cm-1) SRS. Results of effect of H2 pressure (0 to 24 atm) on the threshold are coincident with the analysis of the combined effect of Dicke-Doppler and collision broadening. The influences of stimulated Raman process (SRP) and four-wave parametric processes (FWPP) on energy transfer efficiency, as well as the role of pressure-dispersion effect on higher order anti-Stokes are also discussed.