Reference wavelengths in the spectra of Fe, Ge, and Pt in the region near 1935 Å
JOSA B, Vol. 21, Issue 2, pp. 442-453 (2004)
http://dx.doi.org/10.1364/JOSAB.21.000442
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Abstract
Wavelengths of seven spectral lines of Fe I, Ge I, and Pt I between 1932 Å and 1938 Å have been measured with uncertainties of less than 1×10−4 Å (5 parts in 108) with Fourier-transform spectroscopy. These lines provide accurate standards for wavelength calibration of ArF excimer lasers operating at 193 nm. Previously reported wavelengths of Fe I, Cu II, and Ge I were evaluated for calibration of the absolute wavelength scale. Calibrations based on Fe I and Ge I were found to differ systematically by several parts in 108. A calibration based on Cu II was internally inconsistent at a level of 2 parts in 107 and was not used. Improved wavelengths for an additional 147 lines of Pt I and Pt II and 161 lines of Kr II in the region 1636 Å to 3151 Å are also reported.
© 2004 Optical Society of America
OCIS Codes
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(300.6540) Spectroscopy : Spectroscopy, ultraviolet
Citation
Gillian Nave and Craig J. Sansonetti, "Reference wavelengths in the spectra of Fe, Ge, and Pt in the region near 1935 Å," J. Opt. Soc. Am. B 21, 442-453 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-2-442
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