Powered by Indico
v3.2.3
The past decade has seen the expansion of strong-field and attosecond physics from the gas phase to the condensed-matter phase. The high-harmonic generation (HHG) process, where a sample irradiated by a strong laser pulse emits high harmonics of the generating pulse, has exciting prospects for the engineering of compact ultrafast light sources and the ultrafast probing of band structures and topology. The recollision model for HHG, consisting of tunneling, propagation and recollision, has been instrumental to our understanding of HHG in the gas- and condensed-matter phases. I will first introduce strong-field physics and HHG. Then I will proceed to our theoretical findings on our expanded recollision picture, specifically the importance of full-Brillouin-zone tunneling and imperfect electron-hole recollisions. Lastly, I will give an outlook and discuss our future interests.
Lun Yue obtained his bachelor's degree and PhD degree at Aarhus University in 2010 and 2016, respectively. He then did a postdoc stay at Jena University for two years, and since 2018 is working as a postdoc at Louisiana State University. Lun is interested in strong-field and attosecond physics, particularly in strong-field-induced breakup of molecules, attosecond transient absorption spectroscopy and high-harmonic generation in solids.