Coherence properties near interfaces of random media

Area of Science:

• Optics and Photonics
• Surface Science
• Statistical Physics

Background:

• Spatial coherence theory for planar sources overlooks surface details.
• Coherence properties are influenced by angular intensity distribution and sample physics.

Purpose of the Study:

• To investigate the relationship between optical field correlations and surface characteristics.
• To extend coherence theory to highly inhomogeneous media.

Main Methods:

• Measurement of second-order correlations of the optical field.
• Analysis of optical fields at wavelengths away from the source surface.

Main Results:

• Second-order correlations are sensitive to surface characteristics.
• The study demonstrates a link between optical field correlations and the statistical properties of an interface.

Conclusions:

• Optical field correlations provide insights into the statistical nature of interfaces.
• This approach enhances understanding of light-matter interactions at complex surfaces.