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Updated: Jun 21, 2026

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
Published on: August 25, 2016
Sub-Doppler stark spectroscopy in the A-X (1,0) band of CN
Michael L Hause1, Gregory E Hall, Trevor J Sears
1Chemistry Department, Brookhaven National Laboratory, Building 555, P.O. Box 5000 Upton, New York 11793-5000, USA.
Abstract:
The effect of external electric fields has been measured in hyperfine-resolved sub-Doppler transitions in the A (2)Pi-X (2)Sigma (1,0) band of the CN radical near 10,900 cm(-1). Static electric fields less than 1 kV/cm are sufficient to mix the most closely spaced Lambda-dpublets in the A state, leading to Stark spectra with both new and shifted resonances. Simulations of the saturation-dip Stark spectral line profiles allow extraction of the A-state permanent electric dipole moment with a magnitude of 0.06 +/- 0.02 D.
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