Surface photon echoes in the infrared range

Sander Woutersen, Mischa Bonn, Marco J. P. Brugmans

J. Stenger, Dorte Madsen, Peter M. Hamm +2 more

David A. Zimdars, Andrei Tokmakoff, S. Chen +4 more

The first infrared vibrational photon echo experiments conducted in a liquid and a glass are reported. The experiments were performed on the CO stretching mode of tungsten hexacarbonyl at 5.1 \ensuremath{\mu}m (1960 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$) in 2-methyltetrahydrofuran over the temperature range 300 to 16 K using picosecond pulses from the free electron laser at Stanford University. In addition, the first vibrational population relaxation measurements spanning a temperature range that takes a system from a liquid to a supercooled liquid to a glass are reported.

M. D. Fayer, David A. Zimdars, Andrei Tokmakoff +4 more

The first infrared vibrational photon echo experiments conducted in a liquid and a glass are reported. The experiments were performed on the CO stretching mode of tungsten hexacarbonyl at 5.1 micrometers (1960 cm-1) in 2-methyltetrahydrofuran over the temperature range 300 K to 16 K using picosecond pulses from the free electron laser at Stanford University. In addition, the first vibrational population relaxation measurements spanning a temperature range that takes a system from a liquid to a supercooled liquid to a glass are reported.

Philippe Guyot‐Sionnest

Using short infrared pulses and sum-frequency up-conversion, the dephasing of the transient polarization of the Si-H adsorbate-substrate vibration is followed in real time. At 120 K, dephasing due to homogeneous linewidth or inhomogeneous broadening are separated.