Code: ThOP	Time Slot/Poster Number: 8:30 - 9:15 am	Session: Thursday Plenary
Vibrational Spectroscopy Using Short Optical Pulses: Coherence, Transients and Interfaces
Tahei Tahara
RIKEN, Wako, Japan
View Abstract PDF
Summary
Vibrational coherence, short-lived transients and liquid interfaces have been studied by vibrational spectroscopy using short optical pulses. Ultrafast chemical reactions were investigated by time-domain vibrational spectroscopy using 10-fs pulses. Coherent nuclear motion of the excited states was observed, which shed new light on the primary chemical processes studied. New types of frequency-domain interface-selective even-order nonlinear spectroscopy have been developed. The heterodyne nature of the methods provides new information about the molecules at liquid interfaces.

Code: ThOP	Time Slot/Poster Number: 9:15 - 10:00 am	Session: Thursday Plenary
Raman spectroscopy of graphene: State of the Art
Andrea C. Ferrari
University of Cambridge, Cambridge, United Kingdom
View Abstract PDF
Summary
Raman spectroscopy is the most common and informative characterization technique in graphene science and technology. It is used to determine the number of layers, doping, strain, defects, functional groups, quality and type of edges. I will outline the state of the art in this field, the recent developments and future directions of research, focussing on the link between Raman spectra and sample mobility, the quantification and identification of defects, and the role of electron-electron interactions. Finally, I will discuss how Raman spectroscopy could play a similar role in the emerging field of topological insulators.