Thermal modeling in cavity-enhanced photothermal spectroscopy Conference Paper uri icon


  • The quality-factor dependent enhancement of the field of a weak probe laser beam inside a resonant optical cavity is used to measure the minute optical absorption of liquid films, metallic and high reflectivity dielectric coatings. The measurement is not affected by the presence of the surface reflections and the scattering from the strong pump laser beam, which is focussed onto the sample placed inside the cavity. Laser surface heating calculations were performed and account qualitatively for both the spatial and temporal behavior of the observed signals.

published proceedings

  • Proceedings of SPIE - The International Society for Optical Engineering

author list (cited authors)

  • Chen, S. H., Tang, Z. C., Rong, Z., & Schuessler, H. A.

complete list of authors

  • Chen, SH||Tang, ZC||Rong, Z||Schuessler, HA

publication date

  • December 1990