Deconvoluting nonaxial recoil in Coulomb explosion measurements of molecular axis alignment

被引：24

作者：

Christensen, Lauge ^{[1
]}

Christiansen, Lars ^{[1
]}

Shepperson, Benjamin ^{[1
]}

Stapelfeldt, Henrik ^{[1
]}

机构：

[1] Aarhus Univ, Dept Chem, Langelandsgade 140, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW A | 2016年 / 94卷 / 02期

基金：

欧洲研究理事会;

关键词：

COVARIANCE DATA-ACQUISITION; STRONG LASER-PULSES; ALIGNING MOLECULES; PHOTOELECTRON; COINCIDENCE; IONIZATION; DYNAMICS; FIELDS; OXYGEN; CS2;

D O I：

10.1103/PhysRevA.94.023410

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a quantitative study of the effect of nonaxial recoil during Coulomb explosion of laser-aligned molecules and introduce a method to remove the blurring caused by nonaxial recoil in the fragment-ion angular distributions. Simulations show that nonaxial recoil affects correlations between the emission directions of fragment ions differently from the effect caused by imperfect molecular alignment. The method, based on analysis of the correlation between the emission directions of the fragment ions from Coulomb explosion, is used to deconvolute the effect of nonaxial recoil from experimental fragment angular distributions. The deconvolution method is then applied to a number of experimental data sets to correct the degree of alignment for nonaxial recoil, to select optimal Coulomb explosion channels for probing molecular alignment, and to estimate the highest degree of alignment that can be observed from selected Coulomb explosion channels.

引用

页数：10

共 38 条

[1] Effects of molecular structure on ion disintegration patterns in ionization of O2 and N2 by short laser pulses -: art. no. 113003 [J].

Alnaser, AS ;

Voss, S ;

Tong, XM ;

Maharjan, CM ;

Ranitovic, P ;

Ulrich, B ;

Osipov, T ;

Shan, B ;

Chang, Z ;

Cocke, CL .

PHYSICAL REVIEW LETTERS, 2004, 93 (11) :113003-1

[2]

[Anonymous], 2007, Numerical Recipes: The Art of Scientific Computing

[3] Time-Resolved Molecular Frame Dynamics of Fixed-in-Space CS2 Molecules [J].

Bisgaard, Christer Z. ;

Clarkin, Owen J. ;

Wu, Guorong ;

Lee, Anthony M. D. ;

Gessner, Oliver ;

Hayden, Carl C. ;

Stolow, Albert .

SCIENCE, 2009, 323 (5920) :1464-1468

[4] Using laser-induced Coulomb explosion of aligned chiral molecules to determine their absolute configuration [J].

Christensen, Lauge ;

Nielsen, Jens H. ;

Slater, Craig S. ;

Lauer, Alexandra ;

Brouard, Mark ;

Stapelfeldt, Henrik .

PHYSICAL REVIEW A, 2015, 92 (03)

[5] Dynamic Stark Control of Torsional Motion by a Pair of Laser Pulses [J].

Christensen, Lauge ;

Nielsen, Jens H. ;

Brandt, Christian B. ;

Madsen, Christian B. ;

Madsen, Lars Bojer ;

Slater, Craig S. ;

Lauer, Alexandra ;

Brouard, Mark ;

Johansson, Mikael P. ;

Shepperson, Benjamin ;

Stapelfeldt, Henrik .

PHYSICAL REVIEW LETTERS, 2014, 113 (07)

[6]

Christiansen L., 2015, THESIS

[7] Laser-induced Coulomb explosion of 1,4-diiodobenzene molecules: Studies of isolated molecules and molecules in helium nanodroplets [J].

Christiansen, Lars ;

Nielsen, Jens H. ;

Christensen, Lauge ;

Shepperson, Benjamin ;

Pentlehner, Dominik ;

Stapelfeldt, Henrik .

PHYSICAL REVIEW A, 2016, 93 (02)

[8] Alignment enhancement of molecules embedded in helium nanodroplets by multiple laser pulses [J].

Christiansen, Lars ;

Nielsen, Jens H. ;

Pentlehner, Dominik ;

Underwood, Jonathan G. ;

Stapelfeldt, Henrik .

PHYSICAL REVIEW A, 2015, 92 (05)

[9] Ionization of oriented carbonyl sulfide molecules by intense circularly polarized laser pulses [J].

Dimitrovski, Darko ;

Abu-samha, Mahmoud ;

Madsen, Lars Bojer ;

Filsinger, Frank ;

Meijer, Gerard ;

Kuepper, Jochen ;

Holmegaard, Lotte ;

Kalhoj, Line ;

Nielsen, Jens H. ;

Stapelfeldt, Henrik .

PHYSICAL REVIEW A, 2011, 83 (02)

[10] Direct imaging of rotational wave-packet dynamics of diatomic molecules [J].

Dooley, PW ;

Litvinyuk, IV ;

Lee, KF ;

Rayner, DM ;

Spanner, M ;

Villeneuve, DM ;

Corkum, PB .

PHYSICAL REVIEW A, 2003, 68 (02) :12

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