Inelastic rescattering processes in molecules measured with few-cycle laser pulses

被引：1

作者：

Legare, Francoise ^{[1
]}

Bocharova, Irina A. ^{[2
]}

Lassonde, Phillippe ^{[1
]}

Karimi, Reza ^{[3
]}

Sanderson, Joseph H. ^{[3
]}

Johnston, Tudor ^{[1
]}

Kieffer, Jean-Claude ^{[1
]}

Litvinyuk, Igor V. ^{[2
,4
]}

机构：

[1] INRS Ctr Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada

[2] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

[3] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[4] Griffith Univ, Ctr Quantum Dynam, Brisbane, Qld 4111, Australia

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 23期

基金：

加拿大自然科学与工程研究理事会;

关键词：

NONSEQUENTIAL DOUBLE-IONIZATION; ELECTRON LOCALIZATION; FIELD; ION; DYNAMICS; HELIUM;

D O I：

10.1088/0953-4075/42/23/235601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study electron recollision processes induced in D(2) by the nonlinear interaction with 800 nm few-cycle laser pulses. We show that sequential double ionization is suppressed at intensities below 2 x 10(14) W cm(-2), and the inelastic rescattering processes (electronic excitation and double ionization) become dominant and can be investigated as a function of intensity and ellipticity. At 1 x 10(14) W cm(-2), the D(+) kinetic energy spectrum arises from recollision- induced electronic excitation (D(2)(+) -> D(+)+D) and is explained by the contributions of two dissociative excited electronic states of D(2)(+) ((2)Sigma(+)(u) and (2)Pi(u)).

引用

页数：5

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