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Volumn 98, Issue 19, 2011, Pages

Picosecond acoustic response of a laser-heated gold-film studied with time-resolved x-ray diffraction

Author keywords

[No Author keywords available]

Indexed keywords

EQUILIBRATION TIME; GOLD FILM; LATTICE EXPANSION; LATTICE STRAIN; PICOSECOND ACOUSTICS; QUANTITATIVE INFORMATION; TEMPORAL CHANGE; THERMAL PRESSURE; TIME-RESOLVED X-RAY DIFFRACTION; TRANSIENT EVOLUTION; ULTRASHORT X-RAY PULSE;

EID: 79959682406     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3584864     Document Type: Article
Times cited : (90)

References (23)
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    • We used commercially available (PHASIS, Switzerland) epitaxial gold films grown on (001)-oriented mica muscovite by rf magnetron sputtering.
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    • Similar to the Bragg-peak shift (Fig.) the broadening of the rocking curves exhibits an oscillatory time dependence (large shift maximum broadening). Since each measured rocking curve represents an average over 900 pulses we attribute this mainly to the pulse-to-pulse energy fluctuations of the 400 nm pumpulse (≈20%) which result in corresponding pulse-to-pulse fluctuations of the actual Bragg-peak shift and lead to an apparent broadening of the averaged rocking curve.
    • Similar to the Bragg-peak shift (Fig.) the broadening of the rocking curves exhibits an oscillatory time dependence (large shift maximum broadening). Since each measured rocking curve represents an average over 900 pulses we attribute this mainly to the pulse-to-pulse energy fluctuations of the 400 nm pump pulse (≈20%) which result in corresponding pulse-to-pulse fluctuations of the actual Bragg-peak shift and lead to an apparent broadening of the averaged rocking curve.


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