Capillary wave spectroscopy
The Kapillarwellenspektroskopie is a combination of interferometry and spectroscopy , in which the means of an interferometer data obtained information about the physical processes of interfaces allow. The procedure is similar to infrared reflection-absorption spectroscopy ( IRRAS ) in combination with an FTIR spectrometer .
In the broadest sense, capillary wave spectroscopy is laser spectroscopy .
With a suitable procedure and object-specific boundary conditions, capillary waves generated by Brownian molecular movement on or between liquid phases can be used for measurement .
Areas of application can be found in metallurgy or in biology (for example through measurements on lipids ), since, for example, impurities often have an intense effect on the interfaces. A conceivable application would also be (in addition) trace analysis .
Capillary wave spectroscopy is also referred to as “ non-invasive ”, which, however, could possibly be controversial depending on the field of application, since a laser used for measurement could show a thermophysical effect on the measurement that may not be negligible.
Individual evidence
- ↑ a b Werner Freyland: Coulombic Fluids Bulk and Interfaces . Springer Science & Business Media, 2011, ISBN 978-3-642-17779-8 , pp. 167 ( limited preview in Google Book search).