Superheating of Pb(111)

Journal Article · Mon Aug 24 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.1228· OSTI ID:7088901

Herman, J W; Elsayed-Ali, H E ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

Time-resolved reflection high-energy electron diffraction is used to study the laser-induced superheating of Pb(111). For a heating laser pulse width of {similar to}180 ps, two regimes are observed depending upon the incident peak laser intensity. In the first regime, the time-resolved electron diffraction intensity indicates a transient superheating of the surface followed by cooling below the bulk melting temperature. In the second regime, which occurs at higher peak laser intensities, superheating is followed by melting. Superheating up to 120 K above the bulk melting temperature is observed.

• DOE Contract Number: FG02-88ER45376
• OSTI ID: 7088901
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:8; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
COHERENT SCATTERING
DIFFRACTION
ELECTRON DIFFRACTION
ELEMENTS
HEATING
HEATING RATE
LASER-RADIATION HEATING
LEAD
MELTING
METALS
PHASE TRANSFORMATIONS
PLASMA HEATING
PULSES
RESOLUTION
SCATTERING
SUPERHEATING
TIME RESOLUTION
TIMING PROPERTIES
TRANSIENTS