Zeeman Patterns in Fourier Transform Resolved Fluorescence Spectra of NiH

Details Zeeman Patterns in Fourier Transform Resolved Fluorescence Spectra of NiH Zeeman Patterns in Fourier Transform Resolved Fluorescence Spectra of NiH

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..conferg10r&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Astronomy and Astrophysics

Astrophysics

Mini-Symposium: Metal Containing Molecules

Scientific paper

We have found that dispersed laser induced fluorescence spectra of NiH produced in a discharge source are characterized by remarkably strong emission bands from upper state levels populated by collisional energy transfer.
When the molecules are formed in the presence of a static magnetic field, magnetic response can be measured simultaneously for many transitions, under identical experimental conditions. Working with magnetic fields of 5000 - 10000 Gauss, the Zeeman patterns of many lines are at least partially resolved, at Doppler limited resolution.
If the initial excitation process is chosen to be isotopically selective, the entire spectrum features emission from a single isotopologue, which simplifies analysis considerably. {M_J} selectivity is also possible in some cases. Measurements have been made so far for 58NiH and 60NiH.
The magnetic response of NiH in the low-lying states W_1 2Π 3/2, X_2 2Δ3/2, and X_1 2Δ5/2 states evidently c hanges with v''. This illustrates the effects of mixing between states, described by the supermultiplet 3d^9 complex model given by Gray et al. The intensity distributions of the M_J components in these spectra will be discussed.
R. Vallon et al. Astrophys. J. 696 172 (2009)
J. A. Gray, M. Li, T. Nelis, and R. W. Field, J. Chem. Phys., 95 7164 (1991)

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