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K: Fachverband Kurzzeitphysik

K 6: Laser-Materie-Wechselwirkung und Laseranwendungen III

K 6.3: Vortrag

Dienstag, 18. März 2014, 17:00–17:15, SPA SR203

Visualization of ultrafast two-dimensional atomic motions in a single crystal of bismuth — •Eeuwe Zijlstra and Martin Garcia — Theoretische Physik, Universität Kassel, Deutschland

A new method to optically control two-dimensional atomic motions in a bulk solid has recently been demonstrated [1]. In addition, the controlled motions were quantitatively visualized by density functional theory calculations [1]. The newly developed visualization scheme, which is based on the calculation of optical properties in two independent atomic directions, allows to follow the real-space atomic motions from time-resolved optical reflectivity measurements only. Here, details of the optical calculations are presented and the conditions of validity of our novel scheme are discussed.

[1] H. Katsuki et al, Nature Communications 4, 2801 (2013).