Bulk phase explosion and surface boiling during short pulse laser ablation of semiconductors
Optics InfoBase Conference Papers (1999)
Lattice dynamics of femtosecond laser-excited semiconductors probed by ultrafast x-ray diffraction
Optics InfoBase Conference Papers (1999)
Propagation of picosecond acoustic pulses in semiconductor heterostructures probed by ultrafast X-ray diffraction
IQEC, International Quantum Electronics Conference Proceedings (1999) 306-307
Abstract:
The coherent lattice dynamics in semiconductor heterostructures were studied using an optical-pump X-ray probe. The data provided quantitative information on the propagation of optically generated picosecond acoustic pulses inside Germanium layers, across buried interfaces and into underlying Silicon substrates. The analysis of the time resolved data from Silicon, detect transmission of the acoustic pulse across the buried Ge/Si interface into the Silicon substrate. The peak magnitude of the compressive strain is of the order of 0.006% corresponding to an absolute change in interlayer spacing of approximately 20 femtometer. The magnitude of the measured compression feature is one order of magnitude smaller than in any previous reported data.Propagation of picosecond acoustic pulses in semiconductor heterostructures probed by ultrafast X-ray diffraction
Optics InfoBase Conference Papers (1999)
Relativistic generation and characterization of ultrafast X-rays for time-resolved diffraction and spectroscopy
IQEC, International Quantum Electronics Conference Proceedings (1999) 153