强场超快激光与原子分子相互作用产生高次谐波，不仅是产生阿秒级极端超快XUV相干光源的主要手段，也是一种在亚原子时间与空间尺度研究电子加速及其轨道操控的微观实验平台。我们将重点介绍上海光机所近期利用整形的激光场实现对亚原子时间与空间尺度的电子加速及其轨道操控，并进而实现对阿秒脉冲发射的相干控制的新进展。

High-order harmonic generation (HHG) during the interaction of ultrafast high field laser pulse with atoms and molecules is the main approach for attosecond XUV coherent emission. And HHG can be used to investigate the electron acceleration and its trajectory control in sub-atom regime.

报告人简介Introduction to the speaker：

李儒新教授，现任中科院上海光学精密机械研究所所长，强场激光物理国家重点实验室主任。1990年毕业于天津大学精仪系激光专业，获得学士学位。1995年毕业于中科院上海光学精密机械研究所，获得理学光学博士学位。李儒新研究员自1991年起一直从事强场超快激光及其前沿应用研究，取得系列重要创新成果。例如，最近提出并实验证实利用驱动激光场控制的色散特性来补偿阿秒脉冲固有啁啾的新方法，这种不同于以往利用介质静态色散特性的方法是一种动态补偿啁啾的新方法，基于该新方法首次实验上实现了对阿秒脉冲负啁啾的补偿并获得了近变换极限的阿秒脉冲[Physical Review Letters，103, 043904 (2009)]。国际同行高度评价为“为阿秒相干控制创造了新机遇”，“在实现阿秒光源完全控制的道路上前进了一步。”李儒新研究员在影响因子2.0以上的所属学科领域重要SCI刊物上发表了100余篇学术论文。近年来数十次应邀在重要国际学术会议上发表大会综述或特邀报告。2006年被邀为著名的德国Springer综述丛书 “Progress in Ultrafast Intense Laser Science”第一卷撰写一章。2008年与国际著名同行学者共同主编Springer综述丛书 “Progress in Ultrafast Intense Laser Science” 第四卷。李儒新曾被邀担任第一届亚洲高次谐波相干辐射讨论会（韩国，2005年），第五届国际超快强激光科学会议（中国，2006年）和第二届亚洲相干XUV和X射线辐射的产生与应用讨论会（日本，2007年）等的共同主席。李儒新研究员1998年入选中科院百人计划， 1999年获得国家杰出青年科学基金。曾获得1999年首届全国优秀博士学位论文，2001年中国科学院青年科学家奖，2005年第十二届“上海十大杰出青年”，2009年第十一届中国青年科技奖等荣誉称号。还获得2001年度国家自然科学奖二等奖和2004年度国家科技进步奖一等奖。

Prof. Ruxin Li is the director of Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences and the director of the state key laboratory of high field laser physics. Prof. Ruxin Li has been engaged in the frontier research on high-field ultrafast lasers and their applications and he has made a series of important creative achievements. Since 1991 he has made important progress in the research of x-ray lasers, high order harmonic generation. In recent years, he obtained important achievements in the generation of petawatt level femtosecond laser pulses and intense few-cycle laser pulses, the quantum control in the sub-optical-cycle regime under intense laser field, and the new schemes for the generation and control of attoscond pulses in the XUV spectral region. More recently he proposed and demonstrated experimentally a novel technique to control dynamically the intrinsic chirp of attosecond pulses and realized for the first time the compensation of negative chirp of attosecond pulses. Prof. Ruxin Li has authored more than 100 research papers published in important SCI journals with higher than 2 impact factors and owned 20 patents. Prof. Ruxin Li has been invited to give invited talks in tens of international academic conferences. Prof. Ruxin Li was recruited in 1997 by the 100 talents program of Chinese Academy of Sciences, and in 1999 the outstanding youth fund program of national natural science foundation of China. He won the national excellent Ph.D. degree dissertation award in 1999, and the young scientist award of Chinese Academy of Sciences in 2001. He was elected as one of the top ten outstanding youth in Shanghai in 2005. As one of main contributors, he was awarded the second-class national natural science award in 2001 and the first-class national scientific and technological progress award in 2004.