报告人：Prof. Lou F. Dimauro
主持人：李辉副研究员
时间：2021年10月12日（周二）上午8：00-10：00
地点：光学大楼B325，zoom会议id：89068995643，密码：536040
报告人简介：
Louis Franklin Dimauro教授，美国Ohio州立大学Edward E. and Sylvia Hagenlocker Chair，美国物理协会会士，美国光学学会会士，美国科学促进会会员。1980年在Connecticut大学获得博士学位，长期从事原子分子光物理领域研究，与P. Agostini共同领导超快原子物理研究组，专注于原子与强激光光场的阿秒相互作用、中红外强场物理的研究。曾获美国光学学会William F. Meggers 奖等奖项。共发表SCI论文200余篇，引用超万次。
报告内容简介：
Over the past three decades, the tailoring of a light field for manipulating the dynamics of a system at the quantum level has taken a prevalent role in modern atomic, molecular and optical physics. As first described by L. V. Keldysh, the ionization of an atom by an intense laser field will evolve depending upon the light characteristics and atomic binding energy. Numerous experiments have systematically investigated the dependence of the intensity and pulse duration on the ionization dynamics. However, exploration of the wavelength dependence has been mainly confined to wavelengths near 1 mm, or in the language of Keldysh to the multiphoton or mixed ionization regime. It is technically possible to perform more thorough test the strong-field limit (tunneling), and exploit the scaling laws at wavelengths greater than 1 mm. In addition, the emergence of XFELs has broadened the scope into the x-ray regime.
This new perspective on strong-field interactions is driving a renewed interest in the fundamental physics and a renaissance in applications. This talk will examine the implication of the strong-field scaling as it pertains to the production of energetic particles, the generation of attosecond pulses and molecular imaging.