Time-Resolved X-Ray Diffraction from Coherent Phonons during a Laser-Induced Phase Transition Export

@article{PRL2000Lindenberg, abstract = {Time-resolved x-ray diffraction with picosecond temporal resolution is used to observe scattering from impulsively generated coherent acoustic phonons in laser-excited InSb crystals. The observed frequencies and damping rates are in agreement with a model based on dynamical diffraction theory coupled to analytic solutions for the laser-induced strain profile. The results are consistent with a 12 ps thermal electron-acoustic phonon coupling time together with an instantaneous component from the deformation-potential interaction. Above a critical laser fluence, we show that the first step in the transition to a disordered state is the excitation of large amplitude, coherent atomic motion.}, author = {Lindenberg, A. M. and Kang, I. and Johnson, S. L. and Missalla, T. and Heimann, P. A. and Chang, Z. and Larsson, J. and Bucksbaum, P. H. and Kapteyn, H. C. and Padmore, H. A. and Lee, R. W. and Wark, J. S. and Falcone, R. W.}, citeulike-article-id = {3413294}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/PhysRevLett.84.111}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRL/v84/i1/p111_1}, citeulike-linkout-2 = {http://link.aps.org/pdf/PRL/v84/i1/p111_1}, day = {3}, doi = {10.1103/PhysRevLett.84.111}, journal = {Physical Review Letters}, keywords = {coherent, laser-induced, phonons, plase-transitions, txrd}, month = {January}, number = {1}, pages = {111+}, posted-at = {2008-10-15 18:59:07}, priority = {2}, publisher = {American Physical Society}, title = {Time-Resolved X-Ray Diffraction from Coherent Phonons during a Laser-Induced Phase Transition}, url = {http://dx.doi.org/10.1103/PhysRevLett.84.111}, volume = {84}, year = {2000} }

TY - JOUR ID - PRL2000Lindenberg L3 - citeulike-article-id:3413294 N2 - Time-resolved x-ray diffraction with picosecond temporal resolution is used to observe scattering from impulsively generated coherent acoustic phonons in laser-excited InSb crystals. The observed frequencies and damping rates are in agreement with a model based on dynamical diffraction theory coupled to analytic solutions for the laser-induced strain profile. The results are consistent with a 12 ps thermal electron-acoustic phonon coupling time together with an instantaneous component from the deformation-potential interaction. Above a critical laser fluence, we show that the first step in the transition to a disordered state is the excitation of large amplitude, coherent atomic motion. IS - 1 JF - Physical Review Letters TI - Time-Resolved X-Ray Diffraction from Coherent Phonons during a Laser-Induced Phase Transition PB - American Physical Society VL - 84 SP - 111 KW - coherent KW - laser-induced KW - phonons KW - plase-transitions KW - txrd AU - Lindenberg, AM AU - Kang, I AU - Johnson, SL AU - Missalla, T AU - Heimann, PA AU - Chang, Z AU - Larsson, J AU - Bucksbaum, PH AU - Kapteyn, HC AU - Padmore, HA AU - Lee, RW AU - Wark, JS AU - Falcone, RW PY - 2000/01/03/ UR - http://dx.doi.org/10.1103/PhysRevLett.84.111 ER -