Abstract
In pulsed laser deposition of high temperature superconducting thin films, it has been believed that the interaction between the ablated particles and the ambient oxygen gas plays an important role. In order to investigate the behavior of the ablated particles, we have already applied laser-induced fluorescence spectroscopy (LIF)1-3 In this paper, the propagation of the ablated particles (YO) through the ambient gas was directly monitored for the first time by a ID imaging LIE Furthermore, a PZT piezo-electric acoustic sensor was newly proposed as a monitor for all the particles incoming onto a substrate and its results were compared with those of the 1D LIF. The rotational temperatures of YO in the propagating plume were also measured by a single-point LIF. In the following, results obtained by the 1D LIF and the acoustic sensor were described.
© 1993 Optical Society of America
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