Measurement of Optical Constants (n,k) absorption coefficient, dielectric constant, as well reflectance and transmitance is performed by Spectroscopic Ellipsometry. These can also be used to measure bandgap and Emission/Absorption

HORIBA offers several types of Spectroscopic Ellipsometers for research or production environments.

• Spectroscopic Ellipsometry (SE)

  

  for optical characterization and thickness measurement of thin film stacks.