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In einem Kristall bewegen sich Atome auf der Längenskala von Atomkernen und auf einer Zeitskala von weniger als einer Pikosekunde. Unsere Gruppe am Max‐Born‐Institut in Berlin hat in Kollaboration mit Kollegen aus der Schweiz und den USA eine Methode entwickelt, mit der sich Atome in LiBH4‐Kristallen gezielt zum Schwingen anregen lassen und anschließend mit Hilfe einer Reihe von Röntgenblitzen deren...
The ability to control the orientation of small polar molecules is an important step toward experiments such as X-ray diffraction and high-harmonic generation, where structural information or ultrafast molecular dynamics can be reconstructed in the molecular frame. We present experiments where we have combined hexapole state-selection and the application of a strong DC electric field with the use...
Nanoplasmas resulting from the ionization of nano-scale particles by intense laser pulses are typically described by quasiclassical models, where electron emission is understood to take place via thermal processes. Recently, we discovered that, following the interaction of intense near-infrared (NIR) laser pulses with molecular oxygen clusters, electron emission from nanoplasmas can also occur from...
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