Optical description of an interface

Diana Tentori; Javier Camacho

doi:10.1117/12.437215

14 August 2001 Optical description of an interface

Diana Tentori, Javier Camacho

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437215
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

The refractive index is the parameter used to describe the physical medium through which light propagates. It is considered that for homogeneous and isotropic materials it has a unique value at any point; hence a material border is represented by a step index function. This description assumes that the physical properties of the materia at the surface are the same as those of the bulk. From the physics of surfaces we know that in the case of a solid, the interaction between the atoms of the solid and its surroundings are responsible of processes such as adsorption, desorption, etc. In this work we present two basic models that can be sued to characterize, in terms of gradient index profiles, the physical properties of the interface. These models were developed within the physical chemistry of solids to describe the interfacial state, and we have translated them to refractive index profiles following recent results reported for optical wave-guides. The ray tracing equations obtained for light traveling through such refractive index profiles predict Goos-Hanchen effect and satisfy the reflection laws.

Citation Download Citation

Diana Tentori and Javier Camacho "Optical description of an interface", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437215

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KEYWORDS

Interfaces

Refractive index

Geometrical optics

GRIN lenses

Ray tracing

Solids

Solid modeling

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