Imprinting a focused x-ray laser beam to measure its full spatial characteristics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00450793" target="_blank" >RIV/68378271:_____/15:00450793 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevApplied.4.014004" target="_blank" >http://dx.doi.org/10.1103/PhysRevApplied.4.014004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevApplied.4.014004" target="_blank" >10.1103/PhysRevApplied.4.014004</a>

Result language

angličtina

Original language name

Imprinting a focused x-ray laser beam to measure its full spatial characteristics

Original language description

The new generation of x-ray free-electron lasers opens up unique avenues for exploring matter under exotic and extreme conditions. We present a direct method of in-focus numerical phase recovery exploiting multishot desorption imprints in poly(methyl methacrylate). Shapes of the imprints serve as input data for the newly developed code PHARE (phase recovery), inspired by the iterative Gerchberg-Saxton algorithm. A procedure of dynamic input-output mixing guarantees that the algorithm always converges toa selfconsistent paraxial Helmholtz equation solution, which is thereafter optimized for transverse spatial coherence. Very good agreement with single-shot ablation imprints in lead tungstate (PbWO4) is found. The experiment is carried out at LCLS witha focused beam monochromatized at 800 eV. The results of the coherence optimization indicate that the act of monochromatization may have an effect on otherwise very good transverse coherence of free-electron laser beams.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review Applied

ISSN

2331-7019

e-ISSN

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Volume of the periodical

4

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

"014004-1"-"014004-11"

UT code for WoS article

000357864500001

EID of the result in the Scopus database

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