Extending Optical Filaments Using Auxiliary Dress Beams

Keywords

dressed filaments; femtosecond phenomena; filamentation; ultrafast nonlinear optics

Abstract

Dressed optical filaments offer a way to greatly protract an optical filament's natural length while at the same time mitigating nonlinear losses and unwanted multifilamentation effects. In this article, we first theoretically reexamine the quasi-linear propagation dynamics of a standard Gaussian-ring wavefront and then proceed to explore several optical dress beam arrangements of equal-energy. The purpose of this study is to numerically simulate configurations which more economically utilize the finite amount of energy available for filament prolongation. In general, we find that parameters such as beam width and inward radial chirp, when adjusted in unison, play an important role in extending a filament whereas the spatial distribution of power in the optical dress only affects the characteristic intensity fluctuations seen during refocusing cycles.

Publication Date

5-14-2015

Publication Title

Journal of Physics B: Atomic, Molecular and Optical Physics

Volume

48

Issue

9

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0953-4075/48/9/094014

Socpus ID

84927660469 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84927660469

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