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Reference Lines in Optogalvanic Spectra of Uranium and Thorium Over the Wavelength Range 422 nm to 462 nm

Published

Author(s)

W DeGraffenreid, S C. Campbell, Craig J. Sansonetti

Abstract

The optogalvanic spectra of uranium and thorium are convenient sources of reference lines for laser wavelength calibartion at the level of a few parts in 10^8. We observed these spectra in commercial hollow-cathode lamps using a single-frequency cw dye laser operating over the wavelength range 422 nm to 462 nm. Ten uranium and eight thorium lines were measured with an estimated uncertainty of 0.0003 cm^-1 by using our Fabry-Perot wavemeter. The results are compared to previous measurements of these lies and are found to be in good agreement with values determined by Fourier Transform Spectroscopy.
Citation
JOSA B

Keywords

laser spectroscopy, optogalvanic, thorium, uranium, wavelengths

Citation

DeGraffenreid, W. , Campbell, S. and Sansonetti, C. (2021), Reference Lines in Optogalvanic Spectra of Uranium and Thorium Over the Wavelength Range 422 nm to 462 nm, JOSA B (Accessed April 20, 2024)
Created October 12, 2021