Speaker
Hlosani Dube
(Wits Masters Student)
Description
The elastic anisotropy of transparent polymer films and layers can be investigated nondestructively using Brillouin scattering techniques. In this study, an application of Reflection Induced ΘA scattering (RIΘA) technique is introduced. In this geometry, we can simultaneously obtain RIΘA scattering and back scattering peaks in one frequency spectrum. Because the shift frequency of 180 scattering peaks are dependent on the refractive index, one can deduce the information of optical anisotropy (birefringence) by comparing the RIΘA and back scattering peaks. Making use of this idea, the elastic and optical properties (birefringence) of a strontium fluoride (SrF3) crystal are investigated. The refractive index of the SrF3 was then estimated using Brillouin scattering results from this isotropic plane.
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
MSc
Main supervisor (name and email)<br>and his / her institution
Name: Bhekumusa Mathe
Email: Bermuda.Mathe@wits.ac za
Institute: School of Physics University of Witwatersrand
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
N
Primary authors
Dr
Bhekumusa Mathe
(University of the Witwatersrand)
Dr
Daniel Wamwangi
(wits university)
Hlosani Dube
(Wits Masters Student)
