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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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