Molecular hydrogen was studied spectroscopically using a frequency-doubled dye laser operating in the extreme ultraviolet (XUV, 86-90 nm) range. Crossed laser/molecular beam techniques were used for sub-Doppler resolution and 1 XUV+1 UV photoionization for sensitive detection applied in this study. The spectra of isolated and resolved rotational lines in the C1Πu-X1Σg +, B1Σu +-X1Σg +, D1Πu-X1Σg +, and B′1Σu +-X1Σg + systems were recorded. The transition frequencies were obtained from an I2-absorption spectrum in the visible domain using computerized interpolation procedures. The overall accuracy of linewidth measurements in the XUV domain was 0.04 cm-1. These spectroscopic measurements improved classical (non-spectroscopic) measurements by a factor of 5.
|Title of host publication||Technical Digest - European Quantum Electronics Conference|
|Number of pages||1|
|Publication status||Published - 1996|
|Event||Proceedings of the 1996 European Quantum Electronics Conference, EQEC'96 - Hamburg, Ger|
Duration: 8 Sep 1996 → 13 Sep 1996
|Conference||Proceedings of the 1996 European Quantum Electronics Conference, EQEC'96|
|Period||8/09/96 → 13/09/96|