Spectroscopic Ellipsometry Apr 2026

) until the model matches the experimental data, they can "solve" for the unknown properties of the film. Why Spectroscopic Ellipsometry Matters

The name "ellipsometry" comes from the fact that linearly polarized light often becomes after reflecting off a surface. Unlike standard reflectometry, which measures the total intensity of reflected light, SE measures two specific parameters: Spectroscopic Ellipsometry

A polarizer that sets the initial state of the light. The Sample: The thin film or bulk material being studied. ) until the model matches the experimental data,

Can detect films thinner than a single nanometer. Spectroscopic Ellipsometry

Can resolve the individual properties of many stacked layers simultaneously.

A second rotating polarizer (and sometimes a compensator) that detects the change in the light's state.