Tunable coherent soft X-rays

Tunable coherent soft X-rays

A tunable, spatially and spectrally coherent soft X-ray undulator branchline at the Advanced Light Source (ALS) is under operation. Using the third harmonic from an 8-cm period undulator, this branch delivers coherent soft X-rays with photon energies ranging from 200 to 1000 eV. Here, the beamline l...

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Veröffentlicht in:IEEE Journal of Selected Topics in Quantum Electronics 2004-11, Vol.10 (6), p.1405-1413
Hauptverfasser: Rosfjord, K.M., Yanwei Liu, Attwood, D.T.
Format: Artikel
Sprache:eng
Schlagworte:
Coherence
COHERENT RADIATION
Free electron lasers
harmonic
Laboratories
LAWRENCE BERKELEY LABORATORY
MATERIALS SCIENCE
Optical harmonic generation
Optical scattering
SOFT X RADIATION
soft X-rays
Spatial coherence
Tunable circuits and devices
Ultrafast optics
Ultraviolet sources
undulator
Undulators
X-rays
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Beschreibung
Zusammenfassung:A tunable, spatially and spectrally coherent soft X-ray undulator branchline at the Advanced Light Source (ALS) is under operation. Using the third harmonic from an 8-cm period undulator, this branch delivers coherent soft X-rays with photon energies ranging from 200 to 1000 eV. Here, the beamline layout and characterization are presented. The characterization includes measurements of available coherent photon flux as well as a series of double-pinhole experiments to measure spatial coherence in the focal plane.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2004.838036