Generation of Linear Isolated Sub-60 Attosecond Pulses by Combining a Circularly Polarized Pulse with an Elliptically Polarized Pulse

被引：22

作者：

Xia Chang-Long ^{[1
]}

Miao Xiang-Yang ^{[1
]}

机构：

[1] Shanxi Normal Univ, Coll Phys & Informat Engn, Linfen 041004, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2015年 / 32卷 / 04期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

D O I：

10.1088/0256-307X/32/4/043202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The two-color circularly polarized pulses scheme was proposed to generate isolated attosecond pulses in our previous work [Phys. Rev. A 87 (2013) 043406], while the polarization of the attosecond pulse was not investigated. We show a supplementary explanation of this scheme and present another scheme to generate linear isolated attosecond pulses by combining a circularly polarized pulse with an elliptically polarized pulse. High-order harmonic generation and quantum path control are investigated to compare these two schemes. Both schemes can obtain supercontinuum spectra plateau from about 200 eV to 550 eV, which belong to the water window region. It is found that the latter scheme can clearly eliminate the short quantum path and extend the harmonic plateau. A linear isolated attosecond pulse with a duration of sub-60 as can be generated by superposing a bandwidth of 70 eV.

引用

页数：4

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