Amplification and generation of ultra-intense twisted laser pulses via stimulated Raman scattering.

Abstract:

:Twisted Laguerre-Gaussian lasers, with orbital angular momentum and characterized by doughnut-shaped intensity profiles, provide a transformative set of tools and research directions in a growing range of fields and applications, from super-resolution microcopy and ultra-fast optical communications to quantum computing and astrophysics. The impact of twisted light is widening as recent numerical calculations provided solutions to long-standing challenges in plasma-based acceleration by allowing for high-gradient positron acceleration. The production of ultra-high-intensity twisted laser pulses could then also have a broad influence on relativistic laser-matter interactions. Here we show theoretically and with ab initio three-dimensional particle-in-cell simulations that stimulated Raman backscattering can generate and amplify twisted lasers to petawatt intensities in plasmas. This work may open new research directions in nonlinear optics and high-energy-density science, compact plasma-based accelerators and light sources.

journal_name

Nat Commun

journal_title

Nature communications

authors

Vieira J,Trines RM,Alves EP,Fonseca RA,Mendonça JT,Bingham R,Norreys P,Silva LO

doi

10.1038/ncomms10371

subject

Has Abstract

pub_date

2016-01-28 00:00:00

pages

10371

issn

2041-1723

pii

ncomms10371

journal_volume

7

pub_type

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