Speaker
Mr
Ruan Viljoen
(Stellenbosch University)
Description
Supercontinuum pulses produced by a polarisation maintaining all-normal dispersion photonic crystal fibre (ANDi-PCF) can be used to probe Raman active molecules and produce anti-Stokes Raman scattered light in a single beam setup. This supercontinuum is compressed and pumps and probes the sample ‘simultaneously’. In this poster, we present the experimental setup used to perform such Raman measurements. The setup comprises the supercontinuum generation in the ANDi-PCF, the pulse compression and spectrum manipulation using a spatial light modulator in a 4f-shaper, as well as the microscope used to probe the sample. We compare and combine different methods of probing the vibrational spectra of BBO and Cyclohexane by modulating the amplitude, phase and, polarisation of the supercontinuum pulses. The obtained spectra are compared with literature values.
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Main supervisor (name and email)<br>and his / her institution
Prof Erich Rohwer
egr@sun.ac.za
Laser Research Institute
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
No
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
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)
