Vacuum-ultraviolet laser-excited spectra of Xe(2).

Vacuum-ultraviolet laser-excited spectra of Xe(2).
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Xe(2) 的真空紫外激光激发光谱。

DOI:
10.1364/ol.9.000402
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发表时间:
1984
期刊:
影响因子:
3.6
通讯作者:
B. Stoicheff
B. Stoicheff
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
R. Lipson;P. LaRocque;B. Stoicheff

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用脉冲超音速射流形成和冷却二聚体,用镁蒸气中四波混频产生的可调谐相干真空紫外光激发Xe(2),观察到Xe(2)在149.0 nm处的荧光激发。由同位素Xe(2)分子产生的可分辨振动结构产生了明确的振动数(u=37-46),给出了Xe(2)的第一O(+)(U)激发态的下列常数:T(E)=63796(6)cm(-1),omega‘(E)=124.86(30)cm(-1),omega(E)X’(E)=0.937(3)cm(-1),D(E)=4446(7)cm(-1)。
Fluorescence excitation of Xe(2) at 149.0 nm has been observed using a pulsed supersonic jet for dimer formation and cooling and using tunable coherent VUV radiation from four-wave mixing in Mg vapor for excitation. The resolved vibronic structure resulting from isotopic Xe(2) molecules has yielded unambiguous vibrational numbering (upsilon'=37-46), giving the following constants for the first O(+)(u) excited state of Xe(2): T(e) = 63 796(6) cm (-1), omega'(e) = 124.86(30) cm(-1), omega(e)X'(e) = 0.937(3) cm(-1), and D(e) = 4446(7) cm(-1).