Norman J. Dovichi, David S. Moore, and Richard A. Keller, "Use of the optogalvanic effect and the uranium atlas for wavelength calibration of pulsed lasers," Appl. Opt. 21, 1468-1473 (1982)
The optogalvanic effect in a commercial uranium hollow cathode discharge can be used in conjunction with the uranium atlas for wavelength calibration of pulsed lasers at wavelengths longer than 3500 Å. At shorter wavelengths photoelectric emission from the cathode surface interferes with the measurements. The use of a tubular hollow cathode eliminates interference from photoelectric emission and permits wavelength calibration at shorter wavelengths. The photoelectric emission is measured as a function of wavelength.
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The assignment of these transitions to energy levels in uranium can be found from the LASL uranium atlas, Ref. 4.
Fill gas 3-Torr Ar, current 100 mA.
Fill gas 5-Torr Ne, current 25 mA.
From LASL uranium atlas, Ref. 4.
Table II
Comparison of the OGS in the Tubular Discharge Tube with the Uranium Emission Spectrum-Ultraviolet Spectral Region
From extended LASL Uranium Atlas, in preparation.
Fill gas 3-Torr Ar, current 100 mA.
Fill gas 5-Torr Ne, current 25 mA. I, neutral uranium, II, singly ionized uranium. The assignments to II are somewhat uncertain.
Tables (2)
Table I
Comparison of OGS in Tubular and Commercial Discharge Tubes with the Uranium Emission Spectrum Visible Spectral Region
The assignment of these transitions to energy levels in uranium can be found from the LASL uranium atlas, Ref. 4.
Fill gas 3-Torr Ar, current 100 mA.
Fill gas 5-Torr Ne, current 25 mA.
From LASL uranium atlas, Ref. 4.
Table II
Comparison of the OGS in the Tubular Discharge Tube with the Uranium Emission Spectrum-Ultraviolet Spectral Region
From extended LASL Uranium Atlas, in preparation.
Fill gas 3-Torr Ar, current 100 mA.
Fill gas 5-Torr Ne, current 25 mA. I, neutral uranium, II, singly ionized uranium. The assignments to II are somewhat uncertain.
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