Attosecond electronic dynamics of core-excited states of N2O in the soft x-ray region

被引：9

作者：

Saito, Nariyuki ^{[1
]}

Douguet, Nicolas ^{[2
]}

Sannohe, Hiroki ^{[1
]}

Ishii, Nobuhisa ^{[3
]}

Kanai, Teruto ^{[1
]}

Wu, Yi ^{[4
,5
]}

Chew, Andrew ^{[4
,5
]}

Han, Seunghwoi ^{[4
,5
,6
]}

Schneider, Barry, I ^{[7
]}

Olsen, Jeppe ^{[8
]}

Argenti, Luca ^{[4
,5
]}

Chang, Zenghu ^{[4
,5
]}

Itatani, Jiro ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778581, Japan

[2] Kennesaw State Univ, Marietta, GA 30060 USA

[3] Natl Inst Quantum & Radiol Sci & Technol, Kansai Photon Sci Inst, 8-1-7 Umemidai, Kyoto 6190215, Japan

[4] Univ Cent Florida, CREOL, 4111 Libra Dr,PS430, Orlando, FL 32816 USA

[5] Univ Cent Florida, Dept Phys, 4111 Libra Dr,PS430, Orlando, FL 32816 USA

[6] Chonnam Natl Univ, Sch Mech Engn, 77 Yongbong Ro, Gwangju 61186, South Korea

[7] NIST, Gaithersburg, MD 20899 USA

[8] Aarhus Univ, Dept Chem, qLEAP Ctr Theoret Chem, Langelandsgade 140, DK-8000 Aarhus, Denmark

来源：

PHYSICAL REVIEW RESEARCH | 2021年 / 3卷 / 04期

基金：

日本学术振兴会; 美国国家科学基金会;

关键词：

REAL-TIME OBSERVATION; ABSORPTION-SPECTROSCOPY; PULSES;

D O I：

10.1103/PhysRevResearch.3.043222

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a combined experimental and theoretical study of the transient absorption spectroscopy of N2O at the N K edge (400 eV) by employing an attosecond soft x-ray pulse and an overlapping intense femtosecond infrared pulse. Our experiment demonstrates that tunnel ionization of the core-excited states of neutral N2O causes prominent half-cycle oscillations in the absorption signal. In addition, we observe the appearance of the N2O+ signal with increasing delay as a result of the tunneling ionization of N2O, thereby allowing us to follow the tunneling process in real time. We have developed theoretical models that allow us to interpret and reproduce the main trends of the experimental data.

引用

页数：8

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