Spatiotemporal Stability of a Femtosecond Hard-X-Ray Undulator Source Studied by Control of Coherent Optical Phonons

Journal Article · Fri Oct 26 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.174801· OSTI ID:21024362

Beaud, P; Johnson, S L; Streun, A; Abela, R; Abramsohn, D; Grolimund, D; Krasniqi, F; Schmidt, T; Schlott, V; Ingold, G ^[1]

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1. Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

We report on the temporal and spatial stability of the first tunable femtosecond undulator hard-x-ray source for ultrafast diffraction and absorption experiments. The 2.5-1 A output radiation is driven by an initial 50 fs laser pulse employing the laser-electron slicing technique. By using x-ray diffraction to probe laser-induced coherent optical phonons in bulk bismuth, we estimate an x-ray pulse duration of 140{+-}30 fs FWHM with timing drifts below 30 fs rms measured over 5 days. Optical control of coherent lattice motion is demonstrated.

• OSTI ID: 21024362
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 17 Vol. 99; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
BISMUTH
CONTROL
ELECTRONS
HARD X RADIATION
LASERS
PHONONS
PULSES
STABILITY
WIGGLER MAGNETS
X-RAY DIFFRACTION