Presenter: Prof. Petra Rudolf (ZernikeInstitute for Advanced Materials, University of Groningen)
Topic: See atoms move in real time:ultrafast electron diffraction
Time: 10:00AM, Oct. 13th (Thursday)
Location: Conference Room B, BLDG909-1F
Abstract
Time-resolvedelectron diffraction is a unique tool for providing direct and detailedinformation on the structural dynamics of solid surfaces, nano-sized materials,molecules and atomically thin layers, thanks to the high cross section forinteraction between electron and matter. Femtosecond lasers are used togenerate ultrashort light and electron pulses. Light initiates a process in thesample - a phase transition, an electronic excitation or simply a temperaturejump - and by recording snapshots of the electrons diffracted from the samplein a stroboscopic fashion, one can image the photo-induced motion of thestructure.
Inthis talk I shall try to give a taste of the immense possibilities of ultrafastelectron diffraction, illustrating how this novel technique opens the door tophysical understanding of many aspects of light-matter interaction such as outof equilibrium structural phase transitions, melting, controlled nanoscalemechanical phenomena, and creation of coherent phonons.
Biography
Petra Rudolf was born in Munich,Germany. She studied Physics at the La Sapienza, University of Rome, where shespecialized in Solid State Physics. In 1987 she joined the National SurfaceScience laboratory TASC INFM in Trieste for the following five years,interrupted by two extended periods in 1989 and 1990/1991 at Bell Labs in theUSA, where she began to work on the newly discovered fullerenes. In 1993 shemoved to the University of Namur, Belgium where she received her PhD in 1995and then quickly progressed from postdoctoral researcher to lecturer and seniorlecturer before taking up the Chair in Experimental Solid State Physics at theUniversity in Groningen in 2003. Herprincipal research interests lie in the areas of condensed matter physics andsurface science, particularly molecular motors, graphene and other 2D solids,organic thin films and inorganic-organic hybrids. She has published 217peer-reviewed articles and 28 book chapters, and given 80 invited talks atinternational / national conferences.
Dr. Rudolf serves on the editorialboards of the New Journal of Physics and of EPL. She was the President of theBelgian Physical Society in 2000/2001 and was elected Fellow of the Instituteof Physics (2001), Member of Merit of the Dutch Physical Society (2006), Fellowof the American Physical Society (2010) and member of the European Academy ofSciences and Arts (2015). For her work on molecular motors she received the2007 Descartes Prize of the European Commission. In 2013 she was appointedOfficer in the Order of Orange Nassau by H.M. Queen Beatrix of the Netherlands.
Contact:Prof. Lifeng Chi
（责任编辑：张伶 邮箱：zhangling10@suda.edu.cn）
