SYSTEM FOR LIFETIME MEASUREMENTS OF ALKALI F-STATES WITH A DIODE-LASER IN THE FIRST STEP OF A DIPOLE-QUADRUPOLE EXCITATION SCHEME

An experimental set-up is presented for lifetime measurements of F-sta tes of alkali metal atoms. Its implementation is designed for rubidium . F-states were populated by stepwise dipole-quadrupole S-P-F transiti ons. Two components of the set-up, specially developed for experiment, are described in more detail These are: (i) a stabilized diode-laser, and (ii) a general purpose PC-based system for on-line data acquisiti on and control of various experimental parameters. The set-up is adapt able to serve for other lifetime measurements.