J. Phys. IV France 01 (1991) C7-681-C7-684
IS THERMAL LENS SPECTROMETRY AN ABSOLUTE METHOD FOR FLUORESCENCE QUANTUM YIELD AND ABSORBANCE MEASUREMENTSA. CHARTIER and J. GEORGES
Laboratoire des Sciences Analytiques, Bât. 308, Université Claude Bernard-Lyon I, F-69622 Villeurbanne cedex, France
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