Ellipsometry is an optical technique used to measure the properties of thin films. An Ellipsometer will measure the change in polarisation of light reflected off a sample and use this in modelling to determine values such as thickness, refractive index and more.

Ellipsometry is non-destructive and ultra-sensitive to subtle changes in optical properties making it essential for critical applications in semiconductors, photovoltaics, and coatings. Advanced modelling further enhances it’s ability to analyse rough, textured or graded layers.

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