Abstract
Optical pump, x-ray diffraction probe experiments have been used to study the lattice dynamics of organic materials using a laser-produced plasma x-ray source. The x-ray source is generated from a 10 Hz, 26 mJ, 120 fs laser beam focused on a silicon wafer target. The emitted Kα x-ray radiation is used to probe a cadmium arachidate Langmuir-Blodgett film and a TlAP crystal optically perturbed at laser fluences from 1.8 J/cm2 to 27 J/cm2. Ultrafast disordering inside the lattice - within a time scale below 600 fs to few tens of picoseconds - is clearly observed and produce a drop of the probe x-ray diffracted signal.
| Original language | English |
|---|---|
| Pages (from-to) | 22-29 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3451 |
| Publication status | Published - 1 Dec 1998 |
| Event | Proceedings of the 1998 Conference on Time Structure of X-Ray Sources and Its Applications - San Diego, CA, USA Duration: 23 Jul 1998 → 24 Jul 1998 |
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