The nonlinear optics of coherent X-ray generation: harness attosecond science and nano imaging

发布日期: 2017-07-03   作者:  浏览次数: 10

讲座题目:The nonlinear optics of coherent X-ray generation: harness attosecond science and nano imaging

主讲人:Assistant Prof. Ming-Chang Chen

主持人:吴健教授

讲座时间:2017.7.10上午9:30

讲座地点:理科大楼A814

报告人简介;

EDUCATION

Ph.D. in PhysicsUniversity of Colorado at Boulder, CO, USA May, 2012

M.S. in EO Eng. National Chiao Tung University (NCTU), Taiwan 2004

B.S. in PhysicsNational Tsing Hua University (NTHU), Taiwan 2002

CURRENT POSITION AND RELEVANT EXPERIENCE

Assistant Professor, Institute of Photonics Technologies, National Tsing-Hua University Feb, 2013~ present

Postdoctoral Research Associate, JILA, University of Colorado at Boulder, CO, USA Jun, 2012~ Jan, 2013

Research Assistant, JILA, University of Colorado at Boulder, CO, USA Jan, 2007~ May, 2012

Ph.D. Visiting, Photonic Institute, Vienna University of Technology /Baltuška group June, 2010~Dec, 2011

RESEARCH INTERESTS

High Power Ultrafast Laser Systems, High Harmonic Generation (HHG), Attosecond Generation and Measurement, Materials dynamics, Acoustic wave dynamics, X-ray Imaging

报告摘要:

To explore the world, people use their eyes and hands to see and to manipulate the objects around them. To see the nano-world and ultrafast electron dynamics, the development of new tools is highly desired in this generation. When moving my research career back to NTHU in 2013 spring, I built a EUV&ATTO lab aiming for making a bright, coherent table-top EUV and soft X-ray lasers. My recent research is focusing on understanding the mechanism of high order harmonic generation (HHG) — a process to convert visible/infrared light into light with much shorter wavelength. Simply speaking, when intense visible/infrared light is focused into noble gas atoms, the nonlinear interaction between them could give light with tens of times higher frequency. The spectrum, spatial coherence and brightness of the generated light depend on a lot of parameters like the interaction geometry, the driving laser frequency, and how well the phase matching condition is satisfied. Huge progresses have been made in recent years during my research in NTHU. This new accessible and reliable table-top EUV light source makes a lot of the first possibilities in Taiwan, e.g. providing ultrafast EUV light for Time-Resolved Angle-resolved Photoemission Spectroscopy (TR-ARPES) in NSRRC, and coherent 13.5nm EUV light source for semiconductor industries for nanometer-scale defect inspection.