Two-photon ionization of he through a superposition of higher harmonics

被引：74

作者：

Papadogiannis, NA

Nikolopoulos, LAA

Charalambidis, D

Tsakiris, GD

Tzallas, P

Witte, K

机构：

[1] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, GR-71110 Iraklion, Greece

[2] Univ Crete, Iraklion, Crete, Greece

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.90.133902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present experimental results and theoretical analysis of two-photon ionization of He by a superposition of the 7th to the 13th harmonic of a Ti:sapphire laser. Solving the time-dependent Schrodinger equation for He in a coherent polychromatic field, the He+ yield is calculated. From this yield the number of He+ ions produced has been estimated and found in reasonable agreement with its measured value. The present results establish the feasibility of a second-order autocorrelation measurement of superposition of harmonics, and thus they represent the precursor towards the direct temporal characterization of attosecond pulse trains.

引用

收藏

页数：4

相关论文

共 24 条

[1] Characterization of pulsed gas sources for intense laser field-atom interaction experiments [J].

Altucci, C ;

Beneduce, C ;

Bruzzese, R ;

deLisio, C ;

Sorrentino, GS ;

Starczewski, T ;

Vigilante, F .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (01) :68-75

[2] Applications of B-splines in atomic and molecular physics [J].

Bachau, H ;

Cormier, E ;

Decleva, P ;

Hansen, JE ;

Martín, F .

REPORTS ON PROGRESS IN PHYSICS, 2001, 64 (12) :1815-1943

[3]

Chang T.N., 1993, Many-Body Theory of Atomic Structure and Photoionization, P213

[4] High-harmonic generation of attosecond pulses in the ''single-cycle'' regime [J].

Christov, IP ;

Murnane, MM ;

Kapteyn, HC .

PHYSICAL REVIEW LETTERS, 1997, 78 (07) :1251-1254

[5] Two- and three-photon ionization of rare gases using femtosecond harmonic pulses generated in a gas medium -: art. no. 031404 [J].

Descamps, D ;

Roos, L ;

Delfin, C ;

L'Huillier, A ;

Wahlström, CG .

PHYSICAL REVIEW A, 2001, 64 (03) :4

[6] PROPOSAL FOR ATTOSECOND LIGHT-PULSE GENERATION USING LASER-INDUCED MULTIPLE-HARMONIC CONVERSION PROCESSES IN RARE-GASES [J].

FARKAS, G ;

TOTH, C .

PHYSICS LETTERS A, 1992, 168 (5-6) :447-450

[7] A dispersionless Michelson interferometer for the characterization of attosecond pulses [J].

Goulielmakis, E ;

Nersisyan, G ;

Papadogiannis, NA ;

Charalambidis, D ;

Tsakiris, GD ;

Witte, K .

APPLIED PHYSICS B-LASERS AND OPTICS, 2002, 74 (03) :197-206

[8] ATOMIC-SCALE TEMPORAL STRUCTURE INHERENT TO HIGH-ORDER HARMONIC-GENERATION [J].

HARRIS, SE ;

MACKLIN, JJ ;

HANSCH, TW .

OPTICS COMMUNICATIONS, 1993, 100 (5-6) :487-490

[9] Attosecond metrology [J].

Hentschel, M ;

Kienberger, R ;

Spielmann, C ;

Reider, GA ;

Milosevic, N ;

Brabec, T ;

Corkum, P ;

Heinzmann, U ;

Drescher, M ;

Krausz, F .

NATURE, 2001, 414 (6863) :509-513

[10] Extreme-ultraviolet high-order harmonic pulses in the microjoule range -: art. no. 021801 [J].

Hergott, JF ;

Kovacev, M ;

Merdji, H ;

Hubert, C ;

Mairesse, Y ;

Jean, E ;

Breger, P ;

Agostini, P ;

Carré, B ;

Salières, P .

PHYSICAL REVIEW A, 2002, 66 (02) :4