Title :
Measurement of photothermally induced distortion of thin films using an external cavity laser diode sensor
Author :
Kim, J.-Y. ; Chung, R.W.
Author_Institution :
Centre for NDE Iowa State Univ., Ames, IA, USA
Abstract :
The thermal distortion of a 2.5 mu m thick gold film on a glass plate, produced by a modulated Ar ion laser beam, was measured using a simple external cavity laser diode configuration. Experimental results agree well with calculations. The results of these measurements will help elucidate the photoinductive effect, the photothermally induced change in the inductance of a coil placed over the gold film.
Keywords :
gold; laser beam effects; measurement by laser beam; optical sensors; photothermal effects; 2.5 micron; Au; coil; external cavity laser diode sensor; inductance; modulated Ar ion laser beam; photoinductive effect; photothermally induced distortion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930239
