Speaker
Mr
Ruan Viljoen
(Stellenbosch University)
Description
A number of different techniques utilizing a coherent supercontinuum from a photonic crystal fibre to produce a single-beam coherent anti-stokes Raman scattering (CARS) signals from a variety of samples have been demonstrated. In this presentation, we compare some of these techniques, employing amplitude, phase, and polarisation modulation techniques on our supercontinuum pulse to produce single beam CARS signals. The supercontinuum used in these measurements is produced in a polarisation maintaining all-normal dispersion photonic crystal fibre, which is characterised and compressed through an iterative pulse characterisation technique. We compare Raman spectra from BBO and Cyclohexane to literature values to test which of these methods produce the best signal to noise ratio.
Main supervisor (name and email)<br>and his / her institution
Prof Erich Rohwer
egr@sun.ac.za
Laser Research Institute
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
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)?
no
Primary author
Mr
Ruan Viljoen
(Stellenbosch University)
Co-authors
Mr
Dirk-Mathys Spangenberg
(University of Stellenbosch)
Prof.
Erich Rohwer
(University of Stellenbosch)
Dr
Hans-Martin Frey
(Institute of Applied Physics, University of Bern)
Dr
Pieter Neethling
(Laser Research Institute, University of Stellenbosch)
