Open AccessFLUORESCENCE EXCITATION SPECTRUM OF B2Σ＋—X2 Σ+ OF AlO RADICAL IN A SUPERSONIC JET
Author(s) -
Jin Jin,
Yang Chen,
Pei Li,
Hu Chang-Jin,
Xingxiao Ma,
Congxiang Chen
Publication year - 2000
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.49.1689
Subject(s) - excited state , anharmonicity , excitation , atomic physics , jet (fluid) , materials science , ground state , supersonic speed , fluorescence , laser induced fluorescence , range (aeronautics) , physics , optics , condensed matter physics , quantum mechanics , thermodynamics , composite material
Laser-induced fluorescence excitation spectrum of B2Σ— X2Σ+ transition of gas-phase AlO radical cooled in a supe rsonic jet has been observed in the range of 430—480nm.AlO was produced by reac ting O2 with Al atoms from a dc discharge-sputtering source.The obser ved vibrational bands were identified as V′-V″=1,2,3 transitions respectively. The vibrational frequencies and anharmonic constants were obtained for both the ground state X2Σ+ and the excited state B2Σ+.Furthermore a rotational analysis of the (1,4) band was made.The abno rmal intensity of the V″=5 transitions is discussed.