Application of spectroscopic ellipsometry and Mueller ellipsometry to optical characterization

Area of Science:

• Optics and Photonics
• Materials Science

Background:

• Ellipsometry is an indirect optical technique relying on modeling for sample property determination.
• Standard ellipsometry is suitable for optically isotropic materials.
• Anisotropic and depolarizing samples require advanced techniques like Mueller ellipsometry.

Purpose of the Study:

• To provide an overview of established and novel ellipsometry techniques.
• To discuss the basic theory of light polarization.
• To present applications of standard and Mueller ellipsometry.

Main Methods:

• Introduction to formalisms for describing light polarization.
• Detailed examination of standard ellipsometry, including experimental aspects and commercial instruments.
• Exploration of recent advances in Mueller ellipsometry (polarimetry).

Main Results:

• Standard ellipsometry effectively characterizes isotropic bulk and layered materials.
• Mueller ellipsometry is essential for accurate characterization of anisotropic and depolarizing samples.
• Application examples demonstrate the practical utility of both techniques.

Conclusions:

• Ellipsometry, encompassing both standard and Mueller techniques, offers versatile methods for material characterization.
• Understanding polarization is fundamental to applying these optical techniques effectively.
• Advanced ellipsometry methods are crucial for complex material analysis in research and industry.