| Literature DB >> 23083249 |
Yuichi Inubushi1, Kensuke Tono, Tadashi Togashi, Takahiro Sato, Takaki Hatsui, Takashi Kameshima, Kazuaki Togawa, Toru Hara, Takashi Tanaka, Hitoshi Tanaka, Tetsuya Ishikawa, Makina Yabashi.
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.Entities:
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Year: 2012 PMID: 23083249 DOI: 10.1103/PhysRevLett.109.144801
Source DB: PubMed Journal: Phys Rev Lett ISSN: 0031-9007 Impact factor: 9.161