Articles dans des revues à comité de lecture
|Generation of optical vorticity from topological defects|
|Fumeron S., Pereira E.R., Moraes F.|
|Physica B 476 (2015) 19-23|
|DOI : 10.1016/j.physb.2015.07.010|
|HAL : hal-01281616|
The propagation of an electromagnetic wave along a chiral string (or screw dislocation) is studied. Adopting the formalism of differential forms, it is shown that the singular torsion of the defect is responsible for quantized modes. Moreover, it is demonstrated that the modes thus obtained have well defined orbital angular momentum, opening the possibility for applications relevant both for cosmology and for optics.