ABSTRACT
The 2023 Nobel Prize in Physics was awarded to three physicists, for their seminal accomplishments of developing attosecond pulses of light for the study of electron dynamics in matter. The ultrashort lasers toward the attosecond scale has led to a broad interest of studies in a large variety of research fields, such as condensed matter physics, materials science, chemical reactions, biological engineering, medical diagnosis, etc.. Here I will give an overview of the ultrafast optical spectroscopy and electron dynamics toward attosecond scale, along with this year's Prize. Elaborate experiments by ultrashort laser pulses have demonstrated the incredible control and imaging of electron and phonon motions in molecules and semiconductor materials. A microscopic pictutre of understanding the attosecond techniques and theory will be provided.
BIOGRAPHY
Prof. Zhedong Zhang is now an Assistant Professor at City University of Hong Kong. He obtained his Ph.D. in physics from Stony Brook University in 2016. Since then, he has been working as a postdoctoral fellow at University of California Irvine and Texas A&M University until 2020 when he moved to Hong Kong. He has received the Robert A. Welch Postdoctoral Fellowship. Prof. Zhang’s research interest is the theoretical quantum physics, focusing on two fields: (1) Nonlinear optical spectroscopy with quantum states of light and X ray; (2) Nonequilibrium quantum thermodynamics. He has more than 30 professional publications, on high-profile journals including Nature, Phys. Rev. Lett., Optica, Phys. Rev. A and Phys. Rev. B.
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