Femtosecond structural dynamics in VO2 during a solid-to-solid phase transition.
Physical Review Letters 87 (2001) 237401 4pp
Femtosecond thermal X-ray pulses from hot solid density plasmas
LASER PHYS 11:11 (2001) 1201-1204
Abstract:
We review the progress we made recently on the generation of a femtosecond thermal X-ray source (line and broadband emissions) using solid-density-plasmas generated by ultrashort laser, in view of applications to molecular dynamic.Observation of ultrafast structural transitions in solids using femtosecond x-ray pulses
Conference on Lasers and Electro-Optics Europe - Technical Digest (2001)
Abstract:
Time-resolved x ray diffraction was used to study ultrafast structural transitions in optically excited semiconductors and metals. Non thermal changes in the lattice structure was observed in less than 300 fs. The analysis confirmed the existence of femtosecond non-thermal melting in a covalent semiconductor. The analysis indicated an ultrafast structural transition in a metal.Transient lattice dynamics in fs-laser-excited semiconductors probed by ultrafast X-ray diffraction
J PHYS IV 11:PR2 (2001) 473-477
Abstract:
Using time-resolved x-ray diffraction ultafast lattice dynamics in fs-laser-excited crystalline bulk Ge and Ge/Si-heterostructures has been studied. This experimental technique uniquely allows us to observe fast energy transport deep into. the bulk of the material, coherent acoustic phonon dynamics, lattice anharmonicity, and vibrational transport across a buried interface.Femtosecond X-Ray Diffraction
Optics and Photonics News Optica Publishing Group 12:5 (2001) 28