摘要

Laser control of electrons in molecular systems has attracted considerable attention. In particular, π electrons in aromatic molecules have potential usefulness for organic nano-electronics and opto-electronics. In the planar aromatic molecules π electrons create electronic angular momentum perpendicular to their aromatic ring; that is, the electronic ring current is only within the molecular plane. Nonplanar chiral aromatic molecules, on the other hand, are candidates for use as building blocks of multidimensional switching devices because the π electrons can generate ring currents with a variety of directions.
In this talk I employed (P)-2,2′-biphenol which is a typical nonplanar chiral aromatic molecule with axial chirality. Since (P)-2,2’-biphenol is nonplanar, the resultant angular momentum is not one-dimensional. I will show the results of numerical simulations of the time-dependent coherent angular momentum and ring current of (P)-2,2’-biphenol excited by ultrashort linearly polarized UV pulses.

报告人简介

1974年12月10日出生。1997年和1999年在东京大学获得工学学士和理学硕士学位，2002年在东京大学物理系获得博士学位。2002年在台湾大学物理系从事博士后研究，后来在中央研究院物理所(2002.08-2003.07)，台大物理系(2003.08-2005.07)，中研院原分所(2005.08-2007.10, 2012.11-2013.07)，台大应力所(2007.11-2012.10)从事博士后研究。2013年8月受聘於中研院原分所，助理研究学者。

雷射技术的发展，使我们可利用飞秒而高强度的雷射去探究分子和材料科学的领域。当强雷射和分子系统交互作用，新颖的非线性光电子现象已被发现。此研究可提供未来新颖的强雷射物质作用应用的基石。在该领域做出了具有国际影响力的重要研究成果，至今於国际性学术杂志上发表过30篇论文。

Host: Jie CHEN jiec@sjtu.edu.cn

Contact: Min ZHU zhumin@sjtu.edu.cn