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【学术报告】研究生灵犀学术殿堂第264期之Markus Raschke报告会通知

作者:  来源:  发布时间:2017年12月14日 14:36  

全校师生:

我校定于2017年12月15日举办研究生灵犀学术殿堂——Markus Raschke教授报告会,现将有关事项通知如下:

1.报告会简介

报告人:Markus Raschke教授

时间:2017年12月15日(星期五)上午

地点:理学院学术报告厅

主题:Seeing with the nano-eye: accessing structure, function, and dynamics of matter on its natural length and time scales

内容简介:To understand and ultimately control the properties of most functional materials, from molecular soft-matter to quantum materials, requires access to the structure, coupling, and dynamics on the elementary time and length scales that define the microscopic interactions in these materials. To gain the desired nanometer spatial resolution with simultaneous spectroscopic specificity we combine scanning probe microscopy with different optical, including coherent, nonlinear, and ultrafast spectroscopies. The underlying near-field interaction mediated by the atomic-force or scanning tunneling microscope tip provides the desired deep-sub wavelength nano-focusing enabling few-nm spatial resolution. I will introduce our generalization of the approach in terms of the near-field impedance matching to a quantum system based on special optical antenna-tip designs. The resulting enhanced and qualitatively new forms of light-matter interaction enable measurements of quantum dynamics in an interacting environment or to image the electromagnetic local density of states of thermal radiation. Other applications include the inter-molecular coupling and dynamics in soft-matter hetero-structures, surface plasmon/phonon interferometry as a probe of electronic structure and dynamics in 2D materials, and quantum phase transitions in correlated electron materials. These examples highlight the general applicability of the new near-field microscopy approach, complementing emergent X-ray and electron imaging tools, aiming towards the ultimate goal of probing matter on its most elementary spatio-temporal level.

2.欢迎各学院师生前来听报告。报告会期间请关闭手机或将手机调至静音模式。

党委研究生工作部

理学院

2017年12月14日

 

报告人简介:

Markus Raschke is professor at the Department of Physics, Department of Chemistry, and JILA at the University of Colorado at Boulder. His research is on the development and application of new nano-scale nonlinear and ultrafast spectroscopy techniques to control the light-matter interaction on the nanoscale. These techniques allow for imaging structure and dynamics of molecular and correlated matter with nanometer spatial resolution. He received his PhD in 2000 from the Max-Planck Institute of Quantum Optics and the Technical University in Munich, Germany. Following research appointments at the University of California at Berkeley, and the Max-Born-Institute in Berlin, he became faculty member at the University of Washington in 2006, before moving with his group to Boulder in 2010. He is fellow of the Optical Society of America, the American Physical Society, and the American Association for the Advancement of Science. He is also an associate editor of the journal of Science Advances.

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