Temporal and spatial evolution of laser ablated plasma from YBa2Cu3O7
- 20 June 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (25), 3377-3379
- https://doi.org/10.1063/1.111280
Abstract
YBa2Cu3O7 target was laser ablated, and the time‐of‐flight (TOF) distributions of Y, Y+, and YO in the resultant plasma were investigated as functions of distance from the target and laser energy density using emission spectroscopy. Up to a short distance from the target (≂1.5 cm), TOF distributions show twin peaks for Y and YO, while only single‐peak distribution is observed for Y+. At greater distances (≳1.5 cm) all of them exhibit single‐peak distribution. The twin peaks are assigned to species corresponding to those generated directly/in the vicinity of target surface and to those generated from collisional/recombination process.Keywords
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