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Phys. Rev. Lett. 90, 094801 (2003) [4 pages]

Brilliant, Coherent Far-Infrared (THz) Synchrotron Radiation

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M. Abo-Bakr, J. Feikes, K. Holldack, P. Kuske, W. B. Peatman, U. Schade, and G. Wüstefeld
BESSY mbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany

H.-W. Hübers
DLR, Rutherford Strasse 2, 12489 Berlin, Germany

Received 20 December 2002; published 6 March 2003

See accompanying Physics Focus

A new technology for generating steady state, brilliant, broadband, coherent, far-infrared (FIR) radiation in electron storage rings is presented, suitable for FIR spectroscopy. An FIR power increase of up to 100 000 compared to the normal, incoherent synchrotron radiation in the range of ∼5 to ∼40  cm-1 could be achieved. The source is up to 1000 times more brillant compared to a standard Hg arc lamp. The coherent synchrotron radiation is produced in a “low alpha” optics mode of the synchrotron light source BESSY, by bunch shortening and non-Gaussian bunch deformation.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.094801
DOI:
10.1103/PhysRevLett.90.094801
PACS:
41.60.Ap, 07.57.Hm, 29.27.Bd