Open AccessTHE ANGULAR MOMENTUM ORIENTATION OF C2H221 AND ITS COLLISIONAL DECAY AND TRANSFER
Author(s) -
Cao Wen-Bing,
Armin D. Rudert,
J. Martín,
H. Zacharias,
Joshua B. Halpern
Publication year - 1999
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.48.862
Subject(s) - excited state , atomic physics , angular momentum , orientation (vector space) , physics , rotational transition , acetylene , laser , optics , chemistry , geometry , mathematics , organic chemistry , quantum mechanics
The rotational angular momentum orientation of acetylene in vibrationally excited discrete rotational state (X1Σ+gν″21J″) has been selectively prepared by circularly polarized laser stimulated Raman pumping. From the induced fluorescence by a circularly polarized UV laser, A1Au(ν′31)←X1Σ+g(ν″21), the orientation of C2H2(X1Σgν″21J″478…13is measured for the first time. The decay rate constants and transfer of the orientation from the initial excited level to neighboring rotational states have been extracted.