Polarization gating in relativistic laser-solid interactions

M. Yeung, B. Dromey, S. Cousens, M. Coughlan, S. Rykovanov, C. Rödel, J. Bierbach, S. Kuschel, E. Eckner, M. Förster, G. Paulus, M. Zepf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High order harmonic generation from relativistic laser-solid interactions (focused intensity of > 1018 Wcm−2) has the potential to serve as a source of bright attosecond radiation. One key mechanism that can generate such radiation is the Relativistically Oscillating Mirror (ROM) where the overdense plasma surface oscillates at relativistic velocities leading to a Doppler upshift of the reflected laser radiation. A major obstacle to the application of such a harmonic source is that the radiation is emitted as a periodic pulse train with the frequency of the driving laser. One route to limiting this emission to a single pulse is to exploit the ellipticity dependence of these mechanisms by forming a pulse whose polarisation varies from circular to linear to circular—a technique known as polarization gating. At small angles of incidence it is expected that the efficiency of the ROM mechanism drops dramatically for circular polarization. Here we present a novel method of implementing this technique for high power laser pulses along with proof of principle experimental results.

Original languageEnglish
Title of host publicationX-Ray Lasers 2014 - Proceedings of the 14th International Conference on X-Ray Lasers
EditorsJorge Rocca, Carmen Menoni, Mario Marconi
PublisherSpringer Science and Business Media, LLC
Pages127-132
Number of pages6
ISBN (Print)9783319195209
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event14th International Conference on X-Ray Lasers, 2014 - Fort Collins, United States
Duration: 26 May 201430 May 2014

Publication series

NameSpringer Proceedings in Physics
Volume169
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference14th International Conference on X-Ray Lasers, 2014
Country/TerritoryUnited States
CityFort Collins
Period26/05/1430/05/14

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