Mechanisms of infrared-laser-assisted atomic ionization by attosecond pulses

被引：45

作者：

Tong, X. M. ^{[1
,2
]}

Ranitovic, P. ^{[3
,4
,5
]}

Cocke, C. L. ^{[3
]}

Toshima, N. ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[3] Kansas State Univ, Dept Phys, James R Macdonald Lab, Manhattan, KS 66506 USA

[4] Univ Colorado, JILA, Boulder, CO 80309 USA

[5] NIST, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 02期

基金：

日本学术振兴会;

关键词：

FIELD;

D O I：

10.1103/PhysRevA.81.021404

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a mechanism to understand the infrared (IR) laser assisted atomic ionization by attosecond pulses (AP). Atomic structures in an IR laser field are described by Floquet states and atoms can be ionized to a Floquet state by a single AP through different Floquet components. The interference of ionization through different Floquet components results in the oscillation of the ionization yield as a function of the arriving time of the AP. The proposed mechanism explains the recent experimental observations [Johnsson et al., Phys. Rev. Lett. 99, 233001 (2007)]. Furthermore, we find that, for a specified photoelectron energy, the ionization yield always oscillates as a function of the relative phase between the AP and the IR laser for both He and Ar atoms.

引用

页数：4

共 16 条

[1] Beyond the Floquet theorem: generalized Floquet formalisms and quasienergy methods for atomic and molecular multiphoton processes in intense laser fields [J].

Chu, SI ;

Telnov, DA .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 390 (1-2) :1-131

[2] X-ray pulses approaching the attosecond frontier [J].

Drescher, M ;

Hentschel, M ;

Kienberger, R ;

Tempea, G ;

Spielmann, C ;

Reider, GA ;

Corkum, PB ;

Krausz, F .

SCIENCE, 2001, 291 (5510) :1923-1927

[3] Single-cycle nonlinear optics [J].

Goulielmakis, E. ;

Schultze, M. ;

Hofstetter, M. ;

Yakovlev, V. S. ;

Gagnon, J. ;

Uiberacker, M. ;

Aquila, A. L. ;

Gullikson, E. M. ;

Attwood, D. T. ;

Kienberger, R. ;

Krausz, F. ;

Kleineberg, U. .

SCIENCE, 2008, 320 (5883) :1614-1617

[4] Inner-shell ionization of potassium atoms ionized by a femtosecond laser [J].

Hertlein, M. P. ;

Adaniya, H. ;

Amini, J. ;

Bressler, C. ;

Feinberg, B. ;

Kaiser, M. ;

Neumann, N. ;

Prior, M. H. ;

Belkacem, A. .

PHYSICAL REVIEW A, 2006, 73 (06)

[5] Attosecond control of ionization by wave-packet interference [J].

Johnsson, P. ;

Mauritsson, J. ;

Remetter, T. ;

L'Huillier, A. ;

Schafer, K. J. .

PHYSICAL REVIEW LETTERS, 2007, 99 (23)

[6] Attosecond electron wave packet dynamics in strong laser fields -: art. no. 013001 [J].

Johnsson, P ;

López-Martens, R ;

Kazamias, S ;

Mauritsson, J ;

Valentin, C ;

Remetter, T ;

Varjú, K ;

Gaarde, MB ;

Mairesse, Y ;

Wabnitz, H ;

Salières, P ;

Balcou, P ;

Schafer, KJ ;

L'Huillier, A .

PHYSICAL REVIEW LETTERS, 2005, 95 (01)

[7] Aharonov-Bohm oscillations in a hydrogen atom in a radiation field through electron self-interference [J].

Kalinski, M .

PHYSICAL REVIEW A, 1998, 57 (03) :2239-2242

[8] Observation of a train of attosecond pulses from high harmonic generation [J].

Paul, PM ;

Toma, ES ;

Breger, P ;

Mullot, G ;

Augé, F ;

Balcou, P ;

Muller, HG ;

Agostini, P .

SCIENCE, 2001, 292 (5522) :1689-1692

[9] IR-assisted ionization of helium by attosecond extreme ultraviolet radiation [J].

Ranitovic, P. ;

Tong, X. M. ;

Gramkow, B. ;

De, S. ;

DePaola, B. ;

Singh, K. P. ;

Cao, W. ;

Magrakvelidze, M. ;

Ray, D. ;

Bocharova, I. ;

Mashiko, H. ;

Sandhu, A. ;

Gagnon, E. ;

Murnane, M. M. ;

Kapteyn, H. C. ;

Litvinyuk, I. ;

Cocke, C. L. .

NEW JOURNAL OF PHYSICS, 2010, 12

[10] Isolated single-cycle attosecond pulses [J].

Sansone, G. ;

Benedetti, E. ;

Calegari, F. ;

Vozzi, C. ;

Avaldi, L. ;

Flammini, R. ;

Poletto, L. ;

Villoresi, P. ;

Altucci, C. ;

Velotta, R. ;

Stagira, S. ;

De Silvestri, S. ;

Nisoli, M. .

SCIENCE, 2006, 314 (5798) :443-446

← 1 2 →