Optical twisters: beams having twists in both phase and amplitude
We describe a diffracting beam with orbital angular momentum (OAM) but with a helical profile in both phase and amplitude components of the beam. This is different from Laguerre-Gaussian (LG) beams where only the phase component has a helical profile. Such profile in LG beams introduces a phase singularity at the centre and produces a dark region surrounded by a ring-shaped light pattern. For LG-beams, the ring radius is proportional to the degree of helicity or topological charge of the beam....[Show more]
|Collections||ANU Research Publications|
|Source:||Proceedings of SPIE Vol 7613: Complex Light and Optical Forces|
|01_Daria_Optical_twisters:_beams_having_2010.pdf||1.71 MB||Adobe PDF||Request a copy|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.