Abstract
An optical vortex (phase singularity) with a high topological strength resides on the axis of a high-order light beam. The breakup of this vortex under elliptic perturbation into a straight row of unit-strength vortices is described. This behavior is studied in helical Ince-Gauss beams and astigmatic, generalized Hermite-Laguerre-Gauss beams, which are perturbations of Laguerre-Gauss beams. Approximations of these beams are derived for small perturbations, in which a neighborhood of the axis can be approximated by a polynomial in the complex plane: a Chebyshev polynomial for Ince-Gauss beams, and a Hermite polynomial for astigmatic beams.
| Translated title of the contribution | Rows of optical vortices from elliptically perturbing a high-order beam |
|---|---|
| Original language | English |
| Pages (from-to) | 1325 - 1327 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 31 |
| DOIs | |
| Publication status | Published - May 2006 |