Clark, JN;
Beitra, L;
Xiong, G;
Higginbotham, A;
Fritz, DM;
Lemke, HT;
Zhu, D;
... Robinson, IK; + view all
(2013)
Ultrafast three-dimensional imaging of lattice dynamics in individual gold nanocrystals.
Science
, 341
(6141)
pp. 56-59.
10.1126/science.1236034.
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Abstract
Key insights into the behavior of materials can be gained by observing their structure as they undergo lattice distortion. Laser pulses on the femtosecond time scale can be used to induce disorder in a "pump-probe" experiment with the ensuing transients being probed stroboscopically with femtosecond pulses of visible light, x-rays, or electrons. Here we report three-dimensional imaging of the generation and subsequent evolution of coherent acoustic phonons on the picosecond time scale within a single gold nanocrystal by means of an x-ray free-electron laser, providing insights into the physics of this phenomenon. Our results allow comparison and confirmation of predictive models based on continuum elasticity theory and molecular dynamics simulations.
| Type: | Article |
|---|---|
| Title: | Ultrafast three-dimensional imaging of lattice dynamics in individual gold nanocrystals |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1126/science.1236034 |
| Publisher version: | http://dx.doi.org/10.1126/science.1236034 |
| Language: | English |
| Additional information: | This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science 314(6141), 5 July 2013, doi: 10.1126/science.1236034. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1398733 |
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