Transmission of pulsedCO2laser beams through “opaque” liquids by a cavitation effect
作者:
A. German,
D. Bunimovich,
A. Katzir,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 70,
issue 18
页码: 2362-2364
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.118874
出版商: AIP
数据来源: AIP
摘要:
The formation of a stationary cavity by a sequence ofCO2laser pulses was investigated in liquids of different viscosity and surface tension. Decreasing the surface tension of the liquid and increasing its viscosity increases the depth of the cavity and decreases the threshold energy needed for its formation. A theoretical model based on the Bernoulli–Stokes equation was developed. Good agreement between experimental and theoretical results was obtained. A method of reducing thermal damage, involving liquid layer effects during laser cutting of different materials, is proposed. ©1997 American Institute of Physics.
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