1 / 1

Atom specific view of chemical reaction at surfaces/interfaces “Need a pump pulse”

Atom specific view of chemical reaction at surfaces/interfaces “Need a pump pulse”. Laser-ablation sample damage >> x-ray induced damage. Laser induced temperature jump 1. fs -optical laser pump 2. < 1ps electronic excitation 3. > 1ps phononic excitation 4. Molecules do chemistry.

mizell
Télécharger la présentation

Atom specific view of chemical reaction at surfaces/interfaces “Need a pump pulse”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Atom specific view of chemical reaction at surfaces/interfaces“Need a pump pulse” Laser-ablation sample damage >> x-ray induced damage Laser induced temperature jump 1. fs-optical laser pump 2. <1ps electronic excitation 3. >1ps phononicexcitation 4. Molecules do chemistry Can we resonantly excite the molecular motion on the surface? Frustrated rotation/translation energy ~10 THz LCLS e-beam can produce THz! "Single-cycle terahertz pulses with >0.2 V/Å field amplitudes via coherent transition radiation", D. Daranciang, J. Goodfellow, M. Fuchs, H. Wen, S. Ghimire, D.A. Reis, H. Loos, A.S. Fisher, and A.M. Lindenberg, Appl. Phys. Lett.99, 141117 (2011) Can we use strong THz field (>0.2 V/Å) to control the molecular motion on the surface? manipulation by THz sliding pulling pushing

More Related