Probing impulsive strain propagation with x-ray pulses

被引：158

作者：

Reis, DA ^{[1
]}

DeCamp, MF

Bucksbaum, PH

Clarke, R

Dufresne, E

Hertlein, M

Merlin, R

Falcone, R

Kapteyn, H

Murnane, MM

Larsson, J

Missalla, T

Wark, JS

机构：

[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[5] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[6] Natl Inst Stand & Technol, Boulder, CO 80309 USA

[7] Lund Inst Technol, Dept Atom Phys, SE-22100 Lund, Sweden

[8] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.3072

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Pump-probe time-resolved x-ray diffraction of allowed and nearly forbidden reflections in InSb is used to follow the propagation of a coherent acoustic pulse generated by ultrafast laser excitation. The surface and bulk components of the strain could be simultaneously measured due to the large x-ray penetration depth. Comparison of the experimental data with dynamical diffraction simulations suggests that the conventional model for impulsively generated strain underestimates the partitioning of energy into coherent modes.

引用

页码：3072 / 3075

页数：4

共 22 条

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