title: Diamagnetic cavitization of laser-produced barium plasma in transverse magnetic field.
abstract: Influence of uniform transverse magnetic field and ambient Ar pressure on the plasma plume produced by Nd:YAG laser ablation of barium has been investigated by time-of-flight optical emission spectroscopy. Experiments were carried out with laser pulse energy of 150 mJ and 0.45 Tesla magnetic field. The time-of-flight profiles showed ambient pressure independent behavior at 6-mm distance from the target, which is attributed to the diamagnetic behavior of the laser plasma. A theoretical model is proposed that may explain the compression of temporal profiles of the ionic lines.
authors.forename: Makaraju Srinivasa
authors.initials: MS
authors.lastname: Raju
authors.forename: R K
authors.initials: RK
authors.lastname: Singh
authors.forename: Ajai
authors.initials: A
authors.lastname: Kumar
authors.forename: Pramod
authors.initials: P
authors.lastname: Gopinath