Improvement of the spatial and temporal contrast of short-pulse KrF laser beams

S. Szatmári, R. Dajka, A. Barna, I. B. Földes

Research output: Conference contribution

1 Citation (Scopus)

Abstract

Important figure of merit of high-intensity laser systems is the temporal and spatial quality of their pulses. Spatial filtering is a well known technique to improve the spatial quality by modulating the spatial components at the Fourier-plane, using a pinhole of appropriate size or recently by a nonlinear process. Modulation of the beam in the Fourier-plane allows however a simultaneous spatial and temporal filtering. By the use of a "conjugate" pinhole arrangement before and after the nonlinear spatial selector, intensity dependent transmission is obtained: the low intensity part is efficiently suppressed. Numerical calculations predict practical operation for both amplitude and phase modulation at the Fourier-plane. In the preferred latter case the experimental observations are in good agreement with the theory, demonstrating >40% throughput.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
Volume59
DOIs
Publication statusPublished - 2013
Event7th International Conference on Inertial Fusion Sciences and Applications, IFSA 2011 - Bordeaux, France
Duration: szept. 12 2011szept. 16 2011

Other

Other7th International Conference on Inertial Fusion Sciences and Applications, IFSA 2011
CountryFrance
CityBordeaux
Period9/12/119/16/11

Fingerprint

spatial filtering
pinholes
laser beams
selectors
pulses
figure of merit
phase modulation
high power lasers
modulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Szatmári, S., Dajka, R., Barna, A., & Földes, I. B. (2013). Improvement of the spatial and temporal contrast of short-pulse KrF laser beams. In EPJ Web of Conferences (Vol. 59). [07006] https://doi.org/10.1051/epjconf/20135907006

Improvement of the spatial and temporal contrast of short-pulse KrF laser beams. / Szatmári, S.; Dajka, R.; Barna, A.; Földes, I. B.

EPJ Web of Conferences. Vol. 59 2013. 07006.

Research output: Conference contribution

Szatmári, S, Dajka, R, Barna, A & Földes, IB 2013, Improvement of the spatial and temporal contrast of short-pulse KrF laser beams. in EPJ Web of Conferences. vol. 59, 07006, 7th International Conference on Inertial Fusion Sciences and Applications, IFSA 2011, Bordeaux, France, 9/12/11. https://doi.org/10.1051/epjconf/20135907006
Szatmári, S. ; Dajka, R. ; Barna, A. ; Földes, I. B. / Improvement of the spatial and temporal contrast of short-pulse KrF laser beams. EPJ Web of Conferences. Vol. 59 2013.
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