Molecular Symmetry-Mixed Dichroism in Double Photoionization of H2
| Autor: | Anthony F. Starace, Suxing Hu, J. M. Ngoko Djiokap, N. L. Manakov, A. V. Meremianin, Lars Bojer Madsen |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
POLARIZATION General Physics and Astronomy Photoionization Electron Dichroism Elliptical polarization CROSS-SECTION MEASUREMENTS 01 natural sciences Molecular physics CIRCULAR-DICHROISM SINGLE Extreme ultraviolet Ionization 0103 physical sciences Molecular symmetry Molecule PHOTO-DOUBLE-IONIZATION ION 010306 general physics |
| Zdroj: | Djiokap, J M N, Meremianin, A, Manakov, N L, Madsen, L B, Hu, S X & Starace, A F 2019, ' Molecular Symmetry-Mixed Dichroism in Double Photoionization of H 2 ', Physical Review Letters, vol. 123, no. 14, 143202 . https://doi.org/10.1103/PhysRevLett.123.143202 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.123.143202 |
| Popis: | Dichroism in double photoionization of H_{2} molecules by elliptically polarized extreme ultraviolet pulses is formulated analytically as a sum of atomiclike dichroism (AD) and molecular symmetry-mixed dichroism (MSMD) terms. The MSMD originates from an interplay of ^{1}Σ_{u}^{+} and ^{1}Π_{u}^{+} continuum molecular ionization amplitudes. For detection geometries in which the AD vanishes, numerical results for the sixfold differential probabilities for opposite pulse helicities show that the MSMD is significant in the electron momentum and angular distributions and is controllable by the ellipticity. |
| Databáze: | OpenAIRE |
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