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A compact X-ray free-electron laser emitting in the sub-ångström region.
- Source :
- Nature Photonics; Aug2012, Vol. 6 Issue 8, p540-544, 5p, 1 Diagram, 1 Chart, 3 Graphs
- Publication Year :
- 2012
-
Abstract
- The free-electron laser, first proposed by Madey in 1971, has significantly reduced laser wavelengths to the vacuum ultraviolet and soft X-ray regions. Recently, an X-ray free-electron laser (XFEL) was operated at 1.2 Å at the Linac Coherent Light Source (LCLS). Here, we report the successful generation of sub-ångström laser light using a compact XFEL source, combining a short-period undulator with an 8 GeV electron beam. The shortest wavelength attained-0.634 Å (63.4 pm)-is four orders of magnitude smaller than the 694 nm generated by Maiman's first laser. The maximum power exceeded 10 GW with a pulse duration of 10<superscript>?14</superscript> s. This achievement will contribute to the widespread use of XFEL sources and provide broad opportunities for exploring new fields in science. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17494885
- Volume :
- 6
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Nature Photonics
- Publication Type :
- Academic Journal
- Accession number :
- 78164393
- Full Text :
- https://doi.org/10.1038/nphoton.2012.141