In this work we report on a study of the plasma produced in laser ablation of aluminum targets by visible (532 nm) and UV (355 nm) radiation. In particular, we have obtained ion energy distributions through time-of-flight measurements in the laser ablation plasma at different laser fluences (3 - 60 Jcm-2). The experimental TOF distributions of ions were fitted quite well by theoretical Maxwell-Boltzmann distributions superimposed onto a common center-of-mass flow velocity. By these fits ion plasma temperature and flow velocity were inferred. We also studied the ion yield at different laser fluences, observing a saturation behavior above a specific incident laser fluence.


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    Title :

    Time-of-flight distribution analysis of laser ablation plasmas of aluminum targets


    Contributors:

    Conference:

    Nonresonant Laser-Matter Interaction (NLMI-9) ; 1996 ; St. Petersburg,Russia


    Published in:

    Publication date :

    1997-04-04





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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