A DCAMM seminar will be presented by
Postdoctoral Fellow Michael J. A. Smith
School of Mathematics
University of Manchester, United Kingdom
Abstract:
When combining different materials together to form an inhomogeneous composite, most resulting properties (such as the optical, acoustic, or thermal properties) are typically given by some weighted average of the constituent values. I show that this is not the case for the opto-mechanical properties, namely, for a key opto-mechanical response known as photoelasticity, which describes how the optical properties of a medium change under mechanical deformation.
In recent work, I have shown that two materials with zero photoelasticity can be combined to make a composite that is strongly photoelastic. I will examine the role of the unexpected photoelastic contribution in a selection of composite geometries, describing the effect in closed-form. I will also discuss implications for the homogenisation, mechanics, opto-mechanics, and optics communities.
Danish pastry, coffee and tea will be served 15 minutes before the seminar starts.
All interested persons are invited.