Determination of the pulse duration of an x-ray free electron laser using highly resolved single-shot spectra.
Phys Rev Lett
; 109(14): 144801, 2012 Oct 05.
Article
em En
| MEDLINE
| ID: mdl-23083249
ABSTRACT
We determined the pulse duration of x-ray free electron laser light at 10 keV using highly resolved single-shot spectra, combined with an x-ray free electron laser simulation. Spectral profiles, which were measured with a spectrometer composed of an ultraprecisely figured elliptical mirror and an analyzer flat crystal of silicon (555), changed markedly when we varied the compression strength of the electron bunch. The analysis showed that the pulse durations were reduced from 31 to 4.5 fs for the strongest compression condition. The method, which is readily applicable to evaluate shorter pulse durations, provides a firm basis for the development of femtosecond to attosecond sciences in the x-ray region.
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Base de dados:
MEDLINE
Assunto principal:
Análise Espectral
/
Lasers
/
Modelos Teóricos
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article