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Time Resolved Vacuum Ultraviolet Observations of Excimer Laser-Produced Yba2cu3O7 Plasmas

Published online by Cambridge University Press:  15 February 2011

D.B. Chrisey ,
J.S. Horwitz ,
G. Mehlman ,
R.C.Y. Auyeung  and
P.C. Dorsey
D.B. Chrisey
Affiliation:
Naval Research Laboratory, Washington, D.C. 20375-5345
J.S. Horwitz
Affiliation:
Naval Research Laboratory, Washington, D.C. 20375-5345
G. Mehlman
Affiliation:
SFA Inc., Landover, MD 20785
R.C.Y. Auyeung
Affiliation:
SFA Inc., Landover, MD 20785
P.C. Dorsey
Affiliation:
NRL/ASEE Postdoctoral Research Associate
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Abstract

Simultaneous temporal and spatial resolution of the monochromatic vacuum ultraviolet emission from an excimer laser ablated YBa2Cu3O7 plasma has yielded quantitative information on the plasma generation and velocity. From the time resolved spectral data, plasma velocities were measured and found to be ∼2.3x106 cm/s. It was observed that vacuum ultraviolet emission from above the YBa2Cu3O7 surface does not occur until ˜20 ns after the beginning of the laser pulse. Energetic material continues to be ejected from the target for more than 100 ns after the end of the laser pulse.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 397: Symposium B – Advanced laser Processing of Materials-Fundamentals and Applications , 1995 , 99
Copyright
Copyright © Materials Research Society 1996

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References

REFERENCES

1 Mehlman, G., Chrisey, D.B., Burkhalter, P.G., Horwitz, J.S., and Newman, D.A., J. Appl. Phys. 66, 53 (1993).Google Scholar
2 Mehlman, G., Chrisey, D.B., Burkhalter, P.G., Horwitz, J.S., Auyeung, R.C.Y., and Newman, D.A., Appl. Phys. Lett. 63, 2490 (1993).Google Scholar
3 Mehlman, G., Chrisey, D.B., and Horwitz, J.S., Appl. Phys. Lett. 66, 1848 (1995).Google Scholar