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Pulsed laser etching of highTcsuperconducting films

 

作者: Arun Inam,   X. D. Wu,   T. Venkatesan,   S. B. Ogale,   C. C. Chang,   D. Dijkkamp,  

 

期刊: Applied Physics Letters  (AIP Available online 1987)
卷期: Volume 51, issue 14  

页码: 1112-1114

 

ISSN:0003-6951

 

年代: 1987

 

DOI:10.1063/1.98756

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Etching of Y‐Ba‐Cu‐O superconducting thin films has been accomplished using a pulsed excimer laser (248 nm, 30 ns). Etch depth as a function of the number of laser pulses was linear over a wide range of incident laser energy densities. An etch threshold energy density of 0.11 J/cm2was observed and etch rate per pulse scaled linearly with the logarithm of the incident energy density. The dependence is adequately explained by a linear absorption model with an inverse absorption length of 2.3×105cm−1.

 

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