We have investigated photoionisation of laser-cooled cesium atoms excited to the 6 P-2(3/2) state by irradiating a cesium magneto-optical trap with a beam from either an Ar+ laser or a frequency doubled diode laser. From the analysis of time resolved and steady state fluorescence, we have derived the ionisation cross section on the basis of a simple model of the trapping dynamics in the presence of an ionising beam.
Photoionisation of laser-cooled cesium 6 2P_3/2 atoms
FUSO, FRANCESCO;CIAMPINI, DONATELLA;ARIMONDO, ENNIO;
1998-01-01
Abstract
We have investigated photoionisation of laser-cooled cesium atoms excited to the 6 P-2(3/2) state by irradiating a cesium magneto-optical trap with a beam from either an Ar+ laser or a frequency doubled diode laser. From the analysis of time resolved and steady state fluorescence, we have derived the ionisation cross section on the basis of a simple model of the trapping dynamics in the presence of an ionising beam.File in questo prodotto:
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