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 $1\times {10}^{-4} \AA$ (5 parts in ${10}^8)$ 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 ${10}^8.$ A calibration based on Cu II was internally inconsistent at a level of 2 parts in ${10}^7$ 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

Wavelength calibration of Fourier-transform emission spectra with applications to Fe i

R. C. M. Learner and A. P. Thorne
J. Opt. Soc. Am. B 5(10) 2045-2059 (1988)

Wavelengths of the 3d⁶(⁵D)4s a⁶D−3d⁵(⁶S)4s4p y⁶P multiplet of Fe II (UV 8)

Gillian Nave and Craig J. Sansonetti
J. Opt. Soc. Am. B 28(4) 737-745 (2011)

Precision vacuum-ultraviolet wavelengths of Fe ii measured by Fourier-transform and grating spectrometry

Gillian Nave, Sveneric Johansson, and Anne P. Thorne
J. Opt. Soc. Am. B 14(5) 1035-1042 (1997)

Spectra in the 60345-Å wavelength region of the elements Fe, Ni, Zn, Ge, Se, and Mo injected into the Princeton Large Torus tokamak

A. Wouters, J. L. Schwob, S. Suckewer, J. F. Seely, U. Feldman, and J. H. Davé
J. Opt. Soc. Am. B 5(7) 1520-1527 (1988)

Reference lines in the optogalvanic spectra of uranium and thorium over the wavelength range 694–755 nm

W. DeGraffenreid and Craig J. Sansonetti
J. Opt. Soc. Am. B 19(7) 1711-1715 (2002)