10.6084/m9.figshare.8170793.v1
Ahmed Dorrah
Ahmed
Dorrah
Michel Zamboni-Rached
Michel
Zamboni-Rached
Mo Mojahedi
Mo
Mojahedi
Visualization1.avi
Optica Publishing Group
2019
Optics Modes, Structured Light, and Beam Shaping
2019-06-18 15:20:46
Media
https://opticapublishing.figshare.com/articles/media/Visualization1_avi/8170793
This visualization depicts the propagation dynamics of a multichromatic vortex beam as it undergoes a transition in its wavelength and topological charge in free space. Each frame represents a transverse cross section of the beam as it propagates along the z-direction. It is observed that the beam changes it color from red to green (twice) and also changes its topological charge with propagation, which is evident from the change in the number of intensity petals at the beam's center. Notably, while the wavelength (linear momentum) and topological charge (orbital angular momentum) can vary locally, the global momenta are always conserved.