Reference lines in the optogalvanic spectra of uranium and thorium in the wavelength range 422 to 462 nm

被引：5

作者：

DeGraffenreid, W. ^{[1
]}

Campbell, Sarah C. ^{[2
]}

Sansonetti, Craig J. ^{[2
]}

机构：

[1] Calif State Univ Sacramento, Dept Phys & Astron, Sacramento, CA 95819 USA

[2] NIST, Gaithersburg, MD 20899 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2012年 / 29卷 / 07期

关键词：

HOLLOW-CATHODE LAMPS; CALIBRATION; REGION;

D O I：

10.1364/JOSAB.29.001580

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The spectra of uranium and thorium are convenient sources of reference lines for wavelength calibration at the level of a few parts in 10(8). We observed these spectra by laser optogalvanic spectroscopy in commercial hollow-cathode lamps using a single-frequency cw dye laser operating over the wavelength range 422 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 lines and are found to be in good agreement with, and 1 order of magnitude more accurate than, values determined by Fourier-transform spectroscopy.

引用

页码：1580 / 1583

页数：4

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