Combined laser calorimetry and photothermal technique for absorption measurement of optical coatings.
To the best of our knowledge, a combined sensitive technique employing both laser calorimetry and a surface thermal lens scheme for measuring absorption values of optical coatings is presented for the first time. Laser calorimetric and pulsed surface thermal lens signals are simultaneously obtained with a highly reflecting UV coating sample irradiated at 193 nm. The advantages and potential applications of the combined technique and the experimental factors limiting the measurement sensitivity are discussed.
Li
Bincheng
B
Chinese Academy of Sciences, Institute of Optics and Electronics, China. bcli@ioe.ac.cn
Blaschke
Holger
H
Ristau
Detlev
D