Generation of intense isolated attosecond pulses for attosecond nonlinear opitcs

为阿秒非线性光学产生强隔离阿秒脉冲

• 批准号: 23246019
• 负责人: MIDORIKAWA Katsumi
• 金额: $ 30.28万
• 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 Scientific Research (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23246019/
• 关键词: 量子エレクトロニクス; 非線形光学; アト秒パルス; 高次高調波; 高強度レーザー物理; 極端紫外光

We have generated high energy isolated attosecond pulses, which are intense enough to induce the nonlinear phenomena in atoms and molecules. The pulse width was direct characterized by autocorrelation measurement based on two-photon double ionization in nitrogen molecules. By carefully designing the generation configurations, we obtained isolated attosecond pulses with energy up to 1.3 micro Joule/pulse, thus showing its energy enhancement from 100- to 1000-fold compared with the previous report so far. From a 500-as pulse duration determined by the autocorrelation method, the peak power of this isolated attosecond pulse was evaluated to be 2.6 GW. The presented method paves the way for the intense attosecond science frontier, which will certainly bring a great leap forward in research on ultrafast phenomena and nonlinear optics.

我们已经产生了高能量的孤立阿秒脉冲，其强度足以诱导原子和分子中的非线性现象。利用氮气分子中双光子双电离的自相关测量，直接表征了脉冲宽度。通过精心设计产生结构，我们获得了能量高达1.3微焦耳/脉冲的孤立阿秒脉冲，与之前的报道相比，其能量提高了100-1000倍。根据自相关方法确定的500As脉冲宽度，这个孤立的阿秒脉冲的峰值功率估计为2.6GW。该方法为密集阿秒科学前沿铺平了道路，必将带来超快现象和非线性光学研究的一大飞跃。

项目成果

Interferometry of an attosecond pulse train generated from Xe gas target

氙气靶产生的阿秒脉冲串的干涉测量

• 发表时间: 2013
• 期刊: Chemical Physics
• 影响因子: 2.3
• 作者: 矢澤宏次;鈴木不律;西山裕介;西村勝之;梶弘典;朝倉哲郎;瀧宮和男;Yasuo Nabekawa
• 通讯作者: Yasuo Nabekawa

Generation of intense isolated attosecond pulses

产生强烈的孤立阿秒脉冲

• 发表时间: 2012
• 作者: Toshiyuki Kondo;Takahiro Imaoka;Hiroyuki Hirakata;Masayuki Sakihara;Kohji Minoshima;K.Midorikawa
• 通讯作者: K.Midorikawa

High-Order Harmonic Generation and Attosecond Science

• DOI: 10.1143/jjap.50.090001
• 发表时间: 2011-09
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: K. Midorikawa

Laserinduced electron localization in a triatomic molecular ion

三原子分子离子中的激光诱导电子定位

• DOI: 10.1103/physreva.88.041402
• 发表时间: 2013
• 期刊: Phys. Rev. A
• 作者: 北山香澄;朝倉哲郎;馬場淳徳;金蔵拓郎;和田知明;幡多徳彦;舟久保昭夫;高木義秀;小川陽子;E.Lotestedt and K.Midorikawa
• 通讯作者: E.Lotestedt and K.Midorikawa

レーザー電場のサブサイクル制御による分子内電子の局在化

通过激光电场的子循环控制来定位分子内电子

• 发表时间: 2013
• 作者: 山本諭;岡本宏之;芳賀真;宮田哲郎 ;中澤靖元;朝倉哲郎;S. Shitomoto;越川孝範;瀧宮和男;緑川克美
• 通讯作者: 緑川克美