Low fluence laser sputtering of gold at 532 nm
作者:
Jeffrey W. Elam,
Donald H. Levy,
期刊:
Journal of Applied Physics
(AIP Available online 1997)
卷期:
Volume 81,
issue 1
页码: 539-541
ISSN:0021-8979
年代: 1997
DOI:10.1063/1.364095
出版商: AIP
数据来源: AIP
摘要:
Angle velocity distributions of 532 nm laser sputtered gold atoms are measured. No emission is seen at low fluence unless melt structure is first induced on the gold surface. Following melting, the velocity distribution at 1.4 J/cm2is Boltzmann at 6500 K and the angular distribution is cosine. At 4.9 J/cm2the angle velocity distribution shows collisional modification. These data contradict thermal sputtering but may result from surface plasmon excitation. ©1997 American Institute of Physics.
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