High-Repetition-Rate Sub-Cycle Waveform Synthesis
Associate Prof. Shaobo Fang
11:00, August 29, 2016
405, Section III, West Building, North Campus
Shaobo received his bachelor degree from the College of Precision Instrument & Opto-electronics Engineering of Tianjin University, and his doctoral degree from Hokkaido University (Japan). From 2007 to 2011, he was an assistant research scientist of the Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST). Since 2011 he has been a research scientist in the framework of the Helmholtz Association Young Scientist Program at DESY/CFEL. From 2015, Shaobo joined the Institute of Physics, Chinese Academy of Sciences, as an associate professor. His research interests include sub-cycle waveform synthesis and novel monocycle pulse generation for attoscience and compact X-ray sources.
Waveform Nonlinear Optics aims to study and control the nonlinear interactions of matter with custom-tailored sub-optical-cycle waveforms. In this regime, the time-evolution of the optical electric field deviates strongly from a sinusoidal carrier-wave oscillation within a single cycle of light, so that the usual approximations of nonlinear optics break down, and new phenomena and opportunities arise. Specifically, a novel multi-channel parametric synthesizer driven by a KW-level pump-laser will overcome pulse-energy and average-power bottlenecks for advanced applications. Such intense optical high-repetition-rate waveforms custom-sculpted within an optical cycle open up new horizons for controlling strong-field interactions in atoms, molecules, solids and nanostructures.
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