Experimental Evidence for Circular Dichroism in the Double Photoionization of Helium

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3975· OSTI ID:389389

Viefhaus, J; Avaldi, L; Snell, G; Wiedenhoeft, M; Hentges, R; Ruedel, A; Schaefers, F; Menke, D; Heinzmann, U; Engelns, A; Berakdar, J; Klar, H; Becker, U ^[1]

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1. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin (Germany)

Circular dichroism in the double photoionization of He by circularly polarized light has been observed in an angle resolved coincidence experiment at 93.5 eV photon energy. The use of a transmission multilayer, which acts as a quarter-wave plate for the linearly polarized incident light, together with time-of-flight spectrometers, which enable simultaneous detection of all electron pairs, has made the measurements possible. The results show strong dependence of the dichroism on the relative emission angles and the energy sharing between the ejected electrons in good agreement with our numerical calculations. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 389389
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COINCIDENCE METHODS
ELECTRONS
EMISSION
HELIUM
LAYERS
MAGNETIC CIRCULAR DICHROISM
PHOTOIONIZATION
POLARIZED BEAMS
TIME-OF-FLIGHT METHOD
TRANSMISSION