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High-resolution laser spectroscopy on H2 at 97–98 nm

Abstract

A narrowband tunable eXtreme UltraViolet (XUV) laser source is used for a high resolution study of the Lyman (B 1 Σ u + X 1 Σ g + ) band system of molecular hydrogen. Seven rotational transitions of two vibrational bands, (10,0) and (11,0), in the wavelength range from 97.2–98.3 nm have been investigated for the first time under sub-Doppler molecular beam conditions. A calibration procedure using the I2 standard in the visible yielded an absolute frequency accuracy of 0.02 cm−1. The obtained H2 transition frequencies provide a calibration standard in the extreme ultraviolet wavelength region.

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Hinnen, P.C., Hogervorst, W., Stolte, S. et al. High-resolution laser spectroscopy on H2 at 97–98 nm. Appl. Phys. B 59, 307–310 (1994). https://doi.org/10.1007/BF01081398

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PACS

  • 33.20.Ni
  • 62.65.Ky