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Spectroscopic Characterization of Supersonic Molecular Beams
Author(s) -
Vaida Veronica,
Frost Gregory J.,
Goss Lisa M.
Publication year - 1997
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199700044
Subject(s) - supersonic speed , chemistry , molecular beam , excited state , infrared , characterization (materials science) , beam (structure) , high resolution , atomic physics , analytical chemistry (journal) , molecule , optics , aerospace engineering , physics , organic chemistry , remote sensing , geology , engineering
A general spectroscopic method is described by which samples prepared in supersonic molecular beams can be characterized independently in their ground and excited electronic states. The centerpiece of this experiment is a Fourier transform spectrometer operating at high resolution in the infrared, visible, and ultraviolet. This method is illustrated with studies of the NO 2 and OClO radicals prepared in supersonic molecular beams at temperatures and pressures characteristic of the Earth's atmosphere. This general spectroscopic method is discussed by analogy with low‐ and high‐resolution studies of electronic states which in limited cases have been used to characterize sample conditions in supersonic molecular beam experiments.