Anisotropic photoemission time delays close to a Fano resonance

被引：135

作者：

Cirelli, Claudio ^{[1
,2
]}

Marante, Carlos ^{[3
]}

Heuser, Sebastian ^{[1
]}

Petersson, C. L. M. ^{[3
]}

Jimenez Galan, Alvaro ^{[3
,4
]}

Argenti, Luca ^{[3
,5
,6
]}

Zhong, Shiyang ^{[7
]}

Busto, David ^{[7
]}

Isinger, Marcus ^{[7
]}

Nandi, Saikat ^{[7
]}

Maclot, Sylvain ^{[7
]}

Rading, Linnea ^{[7
]}

Johnsson, Per ^{[7
]}

Gisselbrecht, Mathieu ^{[7
]}

Lucchini, Matteo ^{[11
]}

Gallmann, Lukas ^{[1
]}

Dahlstrom, J. Marcus ^{[8
]}

Lindroth, Eva ^{[8
]}

L'Huillier, Anne ^{[7
]}

Martin, Fernando ^{[3
,9
,10
]}

Keller, Ursula ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Phys Dept, CH-8093 Zurich, Switzerland

[2] Empa, Swiss Fed Labs Mat Sci & Technol, Lab Adv Analyt Technol, CH-8600 Dubendorf, Switzerland

[3] Univ Autonoma Madrid, Dept Quim, Modulo 13, E-28049 Madrid, Spain

[4] Max Born Inst, Max Born Str 2a, D-12489 Berlin, Germany

[5] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

[6] Univ Cent Florida, CREOL Coll Opt & Photon, Orlando, FL 32816 USA

[7] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[8] Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden

[9] Inst Madrileno Estudios Avanzados Nanociencia IMD, Madrid 28049, Spain

[10] Univ Autonoma Madrid, Condensed Matter Phys Ctr IFIMAC, E-28049 Madrid, Spain

[11] Politecn Milan, Dept Phys, Piazza L da Vinci 32, I-20133 Milan, Italy

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

基金：

欧洲研究理事会; 瑞典研究理事会; 美国国家科学基金会; 瑞士国家科学基金会;

关键词：

ATTOSECOND; PHOTOELECTRON; PHOTOIONIZATION; SPECTROSCOPY; MATRIX; ION;

D O I：

10.1038/s41467-018-03009-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum of atomic and molecular targets, is mediated by electron correlation. Here we investigate the attosecond photoemission dynamics in argon in the 20-40 eV spectral range, in the vicinity of the 3s(-1)np autoionizing resonances. We present measurements of the differential photoionization cross section and extract energy and angle-dependent atomic time delays with an attosecond interferometric method. With the support of a theoretical model, we are able to attribute a large part of the measured time delay anisotropy to the presence of autoionizing resonances, which not only distort the phase of the emitted photoelectron wave packet but also introduce an angular dependence.

引用

页数：9

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