Bright circularly polarized soft X-ray high harmonics for X-ray magnetic circular dichroism

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10314371" target="_blank" >RIV/00216208:11320/15:10314371 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27740/15:86096645

Result on the web

<a href="http://dx.doi.org/10.1073/pnas.1519666112" target="_blank" >http://dx.doi.org/10.1073/pnas.1519666112</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1073/pnas.1519666112" target="_blank" >10.1073/pnas.1519666112</a>

Result language

angličtina

Original language name

Bright circularly polarized soft X-ray high harmonics for X-ray magnetic circular dichroism

Original language description

We demonstrate, to our knowledge, the first bright circularly polarized high-harmonic beams in the soft X-ray region of the electromagnetic spectrum, and use them to implement X-ray magnetic circular dichroism measurements in a tabletop-scale setup. Using counterrotating circularly polarized laser fields at 1.3 and 0.79 mu m, we generate circularly polarized harmonics with photon energies exceeding 160 eV. The harmonic spectra emerge as a sequence of closely spaced pairs of left and right circularly polarized peaks, with energies determined by conservation of energy and spin angular momentum. We explain the single-atom and macroscopic physics by identifying the dominant electron quantum trajectories and optimal phase-matching conditions. The first advanced phase-matched propagation simulations for circularly polarized harmonics reveal the influence of the finite phase-matching temporal window on the spectrum, as well as the unique polarization-shaped attosecond pulse train. Finally, we

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

BM - Solid-state physics and magnetism

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

Proceedings of the National Academy of Sciences of the United States of America

ISSN

0027-8424

e-ISSN

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Volume of the periodical

112

Issue of the periodical within the volume

46

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

14206-14211

UT code for WoS article

000365170400046

EID of the result in the Scopus database

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