Cascaded generation of multiply charged optical vortices and spatiotemporal helical beams in a Raman medium

Gorbach, A V; Skryabin, D V

doi:10.1103/PhysRevLett.98.243601

Cascaded generation of multiply charged optical vortices and spatiotemporal helical beams in a Raman medium (bibtex)

@article{GS2007,
abstract = {Using an example of a Raman active medium we describe how a common
nonlinear process of four-wave mixing can be used to induce strong
coupling between the spatial and temporal degrees of freedom in optical
waves. This coupling produces several unexpected effects. Amongst
those are cascaded excitation of multiply charged optical vortices,
spatial focusing in a nonlinearly defocusing medium, and generation
of helically shaped spatiotemporal optical solitons.},
author = {Gorbach, A V and Skryabin, D V},
doi = {10.1103/PhysRevLett.98.243601},
issn = {0031-9007},
journal = {PHYSICAL REVIEW LETTERS},
month = {jun},
number = {24},
title = {{Cascaded generation of multiply charged optical vortices and spatiotemporal helical beams in a Raman medium}},
volume = {98},
year = {2007}
}