Speaker
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
No
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
Abstract content <br> (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>
Cylindrical vector(CV) beams are spatial modes of light with spatially variant polarization states in the transverse profile. Over the years, CV beams have found their way into plenty of applications ranging from material processing and lithography to electron acceleration and particle trapping.
Though qualitative measurements are routinely used to analyse CV beams, there is no quantitative measure of CV beam purity. Here, we introduce new measure, the vector quality factor (VQF), that maps the purity of CV beams to a scale ranging from 0 to 1. We demonstrate a simple optical setup to generate and detect CV beams using a birefringent phase plate known as a q-plate. Real time tomographic measurements are performed using principles of modal decomposition and demultiplexing. Real time measurements are encoded as a demultiplexing of the modal decomposition of the CV beam into its circular basis states. The measurements give a twelve on-axis intensity outputs represent full state tomography which used to evaluate the VQF of CV beams.
Apply to be<br> considered for a student <br> award (Yes / No)?
yes
Main supervisor (name and email)<br>and his / her institution
Prof. Andrew Forbes
Andrew.forbes@wits.ac.za
University of The Witwatersrand
