Monitoring adsorption and sedimentation using evanescent-wave cavity ringdown ellipsometry. Academic Article uri icon


  • We monitor the adsorption of Rhodamine 800, and the sedimentation of a polytetrafluoroethylene (PTFE) suspension at the surface of a fused-silica prism, by measuring both the absorption and s-p phase shift of a 740 nm probe laser beam, using evanescent-wave cavity ringdown ellipsometry (EW-CRDE). The two systems demonstrate the complementary strengths of EW-CRDE, as the progress of adsorption of the Rhodamine 800 dye can only be observed sensitively via the measurement of absorption, whereas the progress of sedimentation of PTFE can only be observed sensitively via the measurement of . We show that EW-CRDE provides a sensitive method for the measurement of and demonstrates precision in of about 10(-4) deg.

published proceedings

  • Appl Opt

author list (cited authors)

  • Stamataki, K., Papadakis, V., Everest, M. A., Tzortzakis, S., Loppinet, B., & Peter Rakitzis, T.

citation count

  • 8

complete list of authors

  • Stamataki, Katerina||Papadakis, Vassilis||Everest, Michael A||Tzortzakis, Stelios||Loppinet, Benoit||Peter Rakitzis, T

publication date

  • February 2013