Phase dynamics of continuous topological upconversion in vortex beams.
The vortex emergence process as an integer order Bessel field progresses continuously onto the contiguous higher order Bessel field is studied in detail. We assess the progressive migration of phase singularities and explain the predicted increase in fractional orbital angular momentum content of the beam in terms of this gradual process.
López-Mariscal
Carlos
C
Photonics and Mathematical Optics Group, Tecnológico de Monterrey, México.
Burnham
Daniel
D
Rudd
Daniel
D
McGloin
David
D
Gutiérrez-Vega
Julio C
JC
D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation