Generation of isolated sub-100-as pulses with 30-fs lasers

作     者：Songsong Tang Xianfeng Chen 

作者机构：Department of Physics State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems Shanghai Jiao Tong University 800 Dong Chuan Road Shanghai 200240 China 

出 版 物：《Physical Review A》 (物理学评论A辑：原子、分子和光学物理学)

年 卷 期：2010年第82卷第1期

页      面：013827-013827页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China [10734080, 10574092] National Basic Research Program "973" of China [2006CB806000] Shanghai Leading Academic Discipline Project [B201] 

主　　题：Polarization 

摘      要：We propose a scheme to generate isolated sub-100-as pulses with 30-fs lasers. Our model is based on high-order harmonic generation from a helium atom irradiated by a two-color femtosecond laser field, in which the driving and the control fields are linearly polarized and the polarization angle between them is π/4. By mixing the polarization gating technique and optimization of two-color lasers, we destroy the symmetry of the driving field from two directions and realize quantum path control with multicycle lasers.