Precision Plasmonics with Monomers and Dimers of Spherical Gold Nanoparticles: Nonequilibrium Dynamics at the Time and Space Limits
L Schumacher, J Jose, D Janoschka, P Dreher, TJ Davis, M Ligges, R Li, M Mo, S Park, X Shen, S Weathersby, J Yang, X Wang, F Meyer Zu Heringdorf, K Sokolowski-Tinten, S Schluecker
JOURNAL OF PHYSICAL CHEMISTRY C | AMER CHEMICAL SOC | Published : 2019
Monomers and dimers of spherical gold nanoparticles (NPs) exhibit highly uniform plasmonic properties at the single-particle level due to their high structural homogeneity (precision plasmonics). Recent investigations in precision plasmonics have largely focused on static properties using conventional techniques such as transmission electron microscopy and optical dark-field microscopy. In this Feature Article, we first highlight the application of femtosecond time-resolved electron diffraction for monitoring the nonequilibrium dynamics of spherical gold NPs after ultrafast optical excitation. The analysis of the transient diffraction patterns allows us to directly obtain quantitative inform..View full abstract
Awarded by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
Awarded by DOE BES SLAC
This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 278162697 - SFB 1242 "non-equilibrium dynamics of condensed matter in the time domain" (A04, B06, C01). The UED work was performed at SLAC MeV-UED, which is supported in part by the DOE BES SUF Division Accelerator & Detector R&D program, the LCLS Facility, and SLAC under contract nos. (DE-AC02-05-CH11231) and (DE-AC02-76SF00515). L.S. and S.S. acknowledge financial support from Evonik Industries for a Ph.D. fellowship for L.S.