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Y sub 1 Ba sub 2 Cu sub 3 O sub 7-x laser-ablation plume dynamics measurement by nanosecond response ion probe: Comparison with optical measurements

Conference ·
OSTI ID:7005079
A family of fast time response ion probes has been developed to study the laser-ablation plume dynamics under Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7-x} film-growth conditions. These probes are useful over a wide range of pressures, distances, laser energies, and energy densities. The ion probe measurements are complemented and corroborated by measurements using spatially and temporally resolved optical emission and absorption spectroscopy. The results confirm a long lived ionized component to the plume and a marked slowing of the plasma front at film deposition pressures and distances. Both the ion probe and spectroscopic techniques show promise as sensitive process monitors for film deposition by laser ablation. 23 refs., 10 figs.
Research Organization:
Oak Ridge National Lab., TN (USA)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
AC05-84OR21400
OSTI ID:
7005079
Report Number(s):
CONF-8910197-3; ON: DE90007658
Country of Publication:
United States
Language:
English