a theoretical chemistry approach to time -resolved ... · a theoretical chemistry approach to time...
TRANSCRIPT
A Theoretical Chemistry Approach toA Theoretical Chemistry Approach to
TimeTime--Resolved Molecular Resolved Molecular PlasmonicsPlasmonics
TAMETAME--PlasmonsPlasmons
PI: Stefano Corni
HI: University of Padova
Partner: CNR-Nano, Modena
http://www.tame-plasmons.eu
ERC CoG 2015 - PE4:Physical and Analytical Chemical sciences
BackgroundBackground
• Real time atomic motion
by ultrafast spectroscopy
Ultrafast optics
However:• Spatial resolution limited by wavelength
• Ensemble measurements (blur details)
E.g., proteins of photosynthesis......
BackgroundBackground
• Real time atomic motion
by ultrafast spectroscopy
Ultrafast optics
However:• Spatial resolution limited by wavelength
• Ensemble measurements (blur details)
......
Add plasmonic nanoantenna• To focus light at the nanoscale
BUT: interpretation of results?
Localized Surface Plasmon
Au
tip
Ag
tip
E.g., proteins of photosynthesis
GoalGoal
To develop a Quantum Chemistry approach
to describe plasmon-enhanced
molecular optical processes in real time
ε(ω)
Maxwell eqns
⁞
Schrödinger eqn
TAMingTAMing PlasmonicPlasmonic ExperimentsExperiments
• Plasmon-enhanced High Harmonic GenerationExp: Kim et al. Nature 2008; Sivis et al. Nature 2012
• Sub-molecular STM electroluminescenceExp: Qiu et al. Science 2003
• Time-resolved SERSExp: Klingsporn et al.; Pozzi et al. JPCLett 2014
• Enhanced pump probe in multi-chromophoric system (e.g. light-harvesting proteins)Exp: not performed yet
Initial plan
The TeamThe Team
GiorgiaBrancolini
Gabriel
Gil
EmanueleCoccia
JacopoFregoni
...