Title

Manipulation of Diffusion of Light via Wave Interference Effects

Presenter Information

Timofey Golubev

Department

Physics

Major

Physics

Research Advisor

Yamilov, Alexey

Advisor's Department

Physics

Funding Source

Opportunities for Undergraduate Research (OURE)

Abstract

The concept of diffusion is fundamental to our understanding of light transport phenomena. Diffusion has been widely used to describe the motion of particles and waves, and it requires only one parameter – the diffusion coefficient. However, for waves, diffusion does not take into account the possibility of interference. Corrections to diffusion theory of waves have been predicted to depend on the distance to the boundaries where the waves can escape the medium. Thus, it is possible to affect the diffusion of light by varying the geometry of the system. The commercial package COMSOL Multiphysics, along with Matlab have been used to model the diffusion of light through a waveguide.

Biography

Tim Golubev is a senior at Missouri S&T and majoring in physics. He has been a member of the METIS research group advised by Dr. Alexey Yamilov since summer of 2012. His role in the research has been concentrated in studying the optical properties of various systems using COMSOL Multiphysics and Matlab. After receiving his bachelor’s degree, Tim plans to attend graduate school specializing in condensed matter physics and pursue a career in research physics.

Research Category

Sciences

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hall

Presentation Date

16 Apr 2014, 9:00 am - 11:45 am

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Apr 16th, 9:00 AM Apr 16th, 11:45 AM

Manipulation of Diffusion of Light via Wave Interference Effects

Upper Atrium/Hall

The concept of diffusion is fundamental to our understanding of light transport phenomena. Diffusion has been widely used to describe the motion of particles and waves, and it requires only one parameter – the diffusion coefficient. However, for waves, diffusion does not take into account the possibility of interference. Corrections to diffusion theory of waves have been predicted to depend on the distance to the boundaries where the waves can escape the medium. Thus, it is possible to affect the diffusion of light by varying the geometry of the system. The commercial package COMSOL Multiphysics, along with Matlab have been used to model the diffusion of light through a waveguide.