Diffraction of strongly convergent X-rays from picosecond acoustic transients |
| |
| Authors: | U. Shymanovich M. Nicoul J. Blums K. Sokolowski-Tinten A. Tarasevitch T. Wietler M. Horn von Hoegen D. von der Linde |
| |
| Affiliation: | 1.Institut für Experimentelle Physik,Universit?t Duisburg-Essen,Duisburg,Germany;2.Technical Physics Institute,Riga Technical University,Riga,Latvia;3.Institut für Halbleiterbauelemente und Werkstoffe,Universit?t Hannover,Hannover,Germany |
| |
| Abstract: | Following femtosecond laser excitation, large transient changes in the X-raydiffraction efficiency have been observed in thin crystalline films of germanium. This behavior is explained in terms of the thermo-acoustic response of the impulsively heated material, when an inhomogeneously strained surface layer is probed by divergent X-ray beams. PACS 61.10.Nz; 41.50.+h |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
