Johnston Kalwe1, 2, Martin Neugebauer2,3, Calvine Ominde1, Gerd Leuchs2,3,4, Geoffrey Rurimo1 and Peter Banzer2,3,4
(European Journal of Physics, 2015-02-04)
5
Abstract
We exploit the birefringence of cellophane to convert a linearly polarised
Gaussian beam into either a radially or azimuthally polarised beam. For that,
we fabricated a low-cost polarisation mask consisting ...