Noncontact nanosecond-time-resolution temperature measurement in excimer laser heating of Ni–P disk substrates
作者:
Shaochen Chen,
Costas P. Grigoropoulos,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 22
页码: 3191-3193
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.120286
出版商: AIP
数据来源: AIP
摘要:
The thermal emission from a Ni–P disk substrate heated by a pulsed excimer laser is measured with nanosecond time resolution. A fast InGaAs photodetector is employed to capture the thermal emission signal. The spectral surface reflectivity is simultaneously measuredin situ. The transient surface temperature is derived from the spectral thermal emission signal on the basis of Planck’s blackbody radiation intensity distribution. The experimental results and analytical solutions are compared and an important parameter involving the thermal diffusivity and conductivity in the transient temperature response of the material is evaluated. ©1997 American Institute of Physics.
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