High resolution spectroscopy of stable xenon isotopes

In this paper we investigate the hyperfine structure and isotope shift of four near infrared xenon transitions by means of a semiconductor diode laser. Doppler free spectra were obtained by using either a saturation spectroscopy technique in cell or a laser induced fluorescence technique on a collimated atomic metastable beam. The hyperfine coupling constants of ¹²⁹Xe and ¹³¹Xe were determined for the levels 1s₅, 1s₄, 1s₄2, 2p₂, 2p₄ and 2p₆ (Paschen notation). Moreover, a systematic study of the isotope shift was performed for the 1s₃ → 2p₄ and 1s₅ → 2p₆ transitions for which all the stable isotopes ^128–131Xe , ¹³²Xe, ¹³⁴Xe, and ¹³⁶Xe were fully resolved. This revised version was published online in August 2006 with corrections to the Cover Date.