Confocal thermal-lens microscope.
The use of a confocal detection scheme in a dual-beam thermal-lens microscope is presented. The scheme allows the measurement of absorption factors down to 1.2 x 10(-7) in a 0.35-microm3 volume by use of a heating laser power of 100 mW incident upon the sample. Results are presented that prove that a 450-nm axial resolution is possible when a 1.2 water immersion objective lens with a N.A. of 1.2 is used.
Moreau
Julien
J
Centre National de la Recherche Scientifique, Unité Propre de Recherche 5, Ecole Supérieure de Physique et Chimie Industrielles de la Ville de Paris, Laboratorie d'Optique Physique, 10 Rue Vauquelin, 75005 Paris, France.
Loriette
Vincent
V