For the first time femtosecond X-ray diffraction measures the coherent strain connected to a zone-folded longitudinal acoustic phonon optically excited in a GaAs/AlGaAs superlattice, giving direct evidence for the displacive excitation mechanism.
Coherent phonons in a semiconductor superlattice studied by femtosecond X-ray diffraction
2005 Quantum Electronics and Laser Science Conference ; 2 ; 745-747 Vol. 2
01.01.2005
2079899 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Femtosecond pulses put the squeeze on phonons
British Library Online Contents | 1997
Observation of coherent interfacial optical phonons in III-V semiconductor nanostructures
British Library Conference Proceedings | 2003
|