Experimental evidence for selection rules in multiphoton double ionization of helium and neon

被引：7

作者：

Henrichs, K. ^{[1
]}

Eckart, S. ^{[1
]}

Hartung, A. ^{[1
]}

Trabert, D. ^{[1
]}

Rist, J. ^{[1
]}

Sann, H. ^{[1
]}

Pitzer, M. ^{[2
]}

Richter, M. ^{[1
]}

Kang, H. ^{[1
,3
]}

Schoeffler, M. S. ^{[1
]}

Kunitski, M. ^{[1
]}

Jahnke, T. ^{[1
]}

Doerner, R. ^{[1
]}

机构：

[1] Goethe Univ Frankfurt, Inst Kernphys, Max von Laue Str 1, D-60438 Frankfurt, Germany

[2] Univ Kassel, Inst Phys, Heinrich Plett Str 40, D-34132 Kassel, Germany

[3] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China

来源：

PHYSICAL REVIEW A | 2018年 / 97卷 / 03期

关键词：

DIFFERENTIAL CROSS-SECTIONS; PHOTO-DOUBLE-IONIZATION; DOUBLE PHOTOIONIZATION; MOMENTUM SPECTROSCOPY; RECOIL-ION; CONTINUUM; HE;

D O I：

10.1103/PhysRevA.97.031405

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the observation of a multipeak structure in the correlated two-electron energy distribution from strong-field double ionization of helium using laser pulses with a wavelength of 394 nm and an intensity of 3 x 10(14) W/cm(2). For selected regions of electron emission angles the peaks emerging at energies corresponding to an odd number of absorbed photons are suppressed. We interpret this as direct results of quantum-mechanical selection rules. For neon these features occur for even photon numbers. By that we attribute this effect to the parity of the continuum wave function. A comparison with analogous data for single-photon double ionization is given.

引用

页数：4

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