Coherent processes at surfaces: Free-induction decay and photon echo of the Si-H stretching vibration for H/Si(111)
- 18 March 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (11), 1489-1492
- https://doi.org/10.1103/physrevlett.66.1489
Abstract
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.Keywords
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