Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-681 - C7-684
DOI http://dx.doi.org/10.1051/jp4:19917183
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-681-C7-684

DOI: 10.1051/jp4:19917183

IS THERMAL LENS SPECTROMETRY AN ABSOLUTE METHOD FOR FLUORESCENCE QUANTUM YIELD AND ABSORBANCE MEASUREMENTS

A. CHARTIER and J. GEORGES

Laboratoire des Sciences Analytiques, Bât. 308, Université Claude Bernard-Lyon I, F-69622 Villeurbanne cedex, France


Abstract
Some anomalies observed in pulsed-laser thermal lens spectrophotometry are presented. Deviations from the expected thermal lens signal were obtained with fluorescent as well as non-fluorescent compounds. Also, transient absorption of the probe beam from long-lived triplet states may induce errors in the measurement of the true thermal lens signal.



© EDP Sciences 1991