Emitter-site-selective photoelectron circular dichroism of trifluoromethyloxirane

被引：27

作者：

Ilchen, M. ^{[1
,2
,3
]}

Hartmann, G. ^{[4
,5
,6
]}

Rupprecht, P. ^{[1
,2
,7
,10
]}

Artemyev, A. N. ^{[4
,5
]}

Coffee, R. N. ^{[1
]}

Li, Z. ^{[1
,8
]}

Ohldag, H. ^{[1
]}

Ogasawara, H. ^{[1
]}

Osipov, T. ^{[1
]}

Ray, D. ^{[1
]}

Schmidt, Ph. ^{[4
,5
]}

Wolf, T. J. A. ^{[2
]}

Ehresmann, A. ^{[4
,5
]}

Moeller, S. ^{[1
]}

Knie, A. ^{[4
,5
]}

Demekhin, Ph. V. ^{[4
,5
,9
]}

机构：

[1] SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA

[2] Stanford PULSE Inst, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA

[3] European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany

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

[5] Univ Kassel, CINSaT, Heinrich Plett Str 40, D-34132 Kassel, Germany

[6] DESY, Notkestr 85, D-22607 Hamburg, Germany

[7] Tech Univ Munich, Phys Dept, James Franck Str 1, D-85748 Garching, Germany

[8] DESY, Ctr Free Electron Laser Sci CFEL, Notkestr 85, D-22607 Hamburg, Germany

[9] Southern Fed Univ, Res Inst Phys, Stachki Av 194, Rostov Na Donu 344090, Russia

[10] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany

来源：

PHYSICAL REVIEW A | 2017年 / 95卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

FREE-ELECTRON LASER; CHIRAL MOLECULES; ANGULAR-DISTRIBUTION; POLARIZED LIGHT; ABEL TRANSFORM; ASYMMETRY; ENANTIOMERS; PHOTOIONIZATION; CAMPHOR; IONIZATION;

D O I：

10.1103/PhysRevA.95.053423

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The angle-resolved inner-shell photoionization of R-trifluoromethyloxirane, C3H3F3O, is studied experimentally and theoretically. Thereby, we investigate the photoelectron circular dichroism (PECD) for nearly symmetric O 1s and F 1s electronic orbitals, which are localized on different molecular sites. The respective dichroic beta(1) and angular distribution beta(2) parameters are measured at the photoelectron kinetic energies from 1 to 16 eV by using variably polarized synchrotron radiation and velocity map imaging spectroscopy. The present experimental results are in good agreement with the outcome of ab initio electronic structure calculations. We report a sizable chiral asymmetry beta(1) of up to about 9% for the K-shell photoionization of oxygen atom. For the individual fluorine atoms, the present calculations predict asymmetries of similar size. However, being averaged over all fluorine atoms, it drops down to about 2%, as also observed in the present experiment. Our study demonstrates a strong emitter and site sensitivity of PECD in the one-photon inner-shell ionization of this chiral molecule.

引用

页数：7

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