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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1990),
  • paper QTHK1

Molecular vibrational energy relaxation at metal surfaces by picosecond infrared-visible sum spectroscopy

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Abstract

Time-domain experiments to establish vibrational energy relaxation mechanisms for adsorbates at surfaces are carried out using transient sum frequency generation (SFG). An intense resonant (IR) pump pulse vibrationally excites molecules at the surface. The subsequent population relaxation is followed by monitoring the SFG signal from a delayed pair of synchronized picosecond IR and visible probe pulses.

© 1990 Optical Society of America

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