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Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
The application of intensity transients in ellipsometry.
Applied Optics
|January 16, 2010
Summary
This study introduces a faster ellipsometric technique using intensity measurements. The method allows separate determination of Delta and psi changes, verified experimentally for iron oxidation.
Area of Science:
- Materials Science
- Physical Chemistry
- Optical Physics
Background:
- Traditional manual nulling techniques for ellipsometry are time-consuming.
- Ellipsometry measures changes in polarization to characterize thin films and surfaces.
- Accurate and rapid measurements are crucial for dynamic processes like oxidation.
Purpose of the Study:
- To develop a faster ellipsometric method using intensity measurements.
- To enable separate determination of Delta and psi changes.
- To experimentally validate the new technique for iron oxidation.
Main Methods:
- Analysis of theoretical intensity relations in ellipsometry.
- Development of a technique utilizing successive transients.
- Experimental verification using the oxidation of iron.
Main Results:
- Intensity measurement provides significantly faster ellipsometric readings compared to manual nulling.
- The proposed technique successfully separates and determines changes in Delta and psi.
- Experimental data confirmed the efficacy of the method for monitoring iron oxidation.
Conclusions:
- The novel intensity-based ellipsometric technique offers enhanced speed and precision.
- This method is suitable for studying dynamic surface processes, such as oxidation.
- The successful verification for iron oxidation demonstrates the technique's practical applicability.
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