Generation of isolated attosecond pulses by a two-color laser field synthesis

通过双色激光场合成产生孤立的阿秒脉冲

• 批准号: 23760057
• 负责人: TAKAHASHI Eiji
• 金额: $ 2.83万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760057/
• 关键词: レーザー; 高次高調波発生; アト秒パルス; 高次高調波

We propose and demonstrate a robust generation method of intense isolated attosecond pulses (IAP), which enable us to perform a nonlinear attosecond optics experiment. Our generation scheme is based on the two-color infrared laser field synthesis and the energy-scaling method of HHG. By using our robust generation method, the maximum pulse energy of the IAP reaches as high as 1.3 uJ. The generated pulse with a duration of 500 as, as characterized by a nonlinear autocorrelation measurement, is the shortest and highest-energy pulse ever with the ability to induce nonlinear phenomena. The peak power of our tabletop light source reaches 2.6GW, which even surpasses that of an extreme-ultraviolet free-electron laser.

我们提出并证明了一种强孤立阿秒脉冲(IAP)的稳健产生方法，它使我们能够进行非线性阿秒光学实验。我们的产生方案是基于双色红外激光场合成和高次谐波的能量定标方法。使用我们的稳健性产生方法，IAP的最大脉冲能量高达1.3微焦耳。根据非线性自相关测量的特征，产生的脉冲的持续时间为500as，是有史以来最短和能量最高的脉冲，具有诱导非线性现象的能力。我们的桌面光源的峰值功率达到2.6GW，甚至超过了极紫外自由电子激光器。

项目成果

Full-coherent free electron laser seeded by 13th- and 15th-order harmonics of near-infrared femtosecond laser pulses

• DOI: 10.1088/0953-4075/46/16/164006
• 发表时间: 2013-08
• 期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
• 作者: T. Sato;A. Iwasaki;S. Owada;K. Yamanouchi;E. Takahashi;K. Midorikawa;M. Aoyama;K. Yamakawa;T. Togashi;K. Fukami;T. Hatsui;T. Hara;T. Kameshima;H. Kitamura;N. Kumagai;S. Matsubara;M. Nagasono;H. Ohashi;T. Ohshima;Y. Otake;T. Shintake;K. Tamasaku;H. Tanaka;T. Tanaka;K. Togawa;H. Tomizawa;T. Watanabe;M. Yabashi;T. Ishikawa

Generation of multigigawatt isolated attosecond pulses

生成数千兆瓦隔离阿秒脉冲

• 发表时间: 2012
• 作者: 川口 侑亮;奥村和;片田直伸;K.Midorikawa
• 通讯作者: K.Midorikawa

Material survey for a novel beam splitter separating high-order harmonics from high-average-power fundamental pulses

用于将高次谐波与高平均功率基波脉冲分离的新型分束器的材料调查

• DOI: 10.1143/jjap.51.062601
• 发表时间: 2012
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: H. Fukuzawa;X.-J. Liu;K. Motomura;Y. Kojima
• 通讯作者: Y. Kojima

A few tens of microjoule full-coherent EUV-FEL seeded by high-order harmonic beam

高次谐波光束产生的几十微焦全相干 EUV-FEL

• 发表时间: 2013
• 作者: Eiji J. Takahashi; Masatoshi Hatayama; Satoshi Ichimaru;Katsumi Midorikawa;Eiji J. Takahashi;Eiji J. Takahashi;Eiji J. Takahashi;Eiji J. Takahashi;Eiji J. Takahashi
• 通讯作者: Eiji J. Takahashi

Carrier envelop phase dependence of electron localization in the multicycle regime

多周期状态下电子局域化的载流子包络相位依赖性

• 发表时间: 2013
• 期刊: New J. Phys.
• 作者: P.Lan;E.J.Takahashi;K.L.Liu;Y.X.Fu;and K.Midorikawa
• 通讯作者: and K.Midorikawa