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Subnanosecond Time-Resolved Electron Diffraction from Thin Crystalline Gold Films

  • Hsiu-Cheng Chen (a1) (a2), Gerard A. Mourou (a1) and Robert S. Knox (a1) (a2)

Abstract

A 100-ps-resolution electron pulse was used to study a 25-nm thick gold single crystal irradiated by a synchronized infrared optical pulse. The change in electron diffraction intensity following laser heating (the Debye-Waller effect) was measured as a function of delay time. The relaxation of a crystal lattice distortion in the surface region appears to explain an observed oscillation in time of the scattered electron intensity. This novel technique provides a sensitive structure probe for short-time dynamics and is, we believe, the fastest lattice temperature probe.

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Subnanosecond Time-Resolved Electron Diffraction from Thin Crystalline Gold Films

  • Hsiu-Cheng Chen (a1) (a2), Gerard A. Mourou (a1) and Robert S. Knox (a1) (a2)

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