High- L atomic Rydberg states studied by high resolution time-resolved Fourier-transform infrared spectroscopy

Abstract:
We report IR spectra of several metal atoms in the 800–8000 cm-1 region
using time-resolved Fourier-transform infrared (FTIR) spectroscopy. We
repor t 32 new lines of Au, 12 of Ag, 20 of Cu, 17 of Na, 26 of K, 24 of
Rb and 21 of Cs. The measured Na and K lines are in agreement with the
solar spectra recorded in Atmospheric Chemistry Experiment (ACE). From the
lines observed we extract revised energy values for more than 150 energy
levels (uncertainty 0.01–0.03 cm-1) of which 8 levels of Au, 3 of Ag, 4 of
Cu, 1 of K, 3 of Na, 4 of Rb and 2 of Cs are reported for the first time.