Abstract
The interaction of a femtosecond laser pulse with deuterium clusters was experimentally studied. The prepulse and the ampli ed spontaneous emission (ASE) e ects on laser absorption and ion emission were measured with the ASE time width controlled. We also measured the spatial distribution of ions along the plasma channel produced from laser interaction with clusters. We performed an experiment to generate neutrons by using laser-induced nuclear fusion, d(d, n)3He. A 10-TW femtosecond laser beam (280 mJ, 30 fs) was focused onto deuterium gas clusters and produced ions accelerated by Coulomb explosion, which resulted in a neutron yield of 3 103/shot.
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