Photoelectron angular distributions in bichromatic atomic ionization induced by circularly polarized VUV femtosecond pulses
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Grum-Grzhimailo, Alexei N
Gryzlova, Elena V
Staroselskaya, Ekaterina I
Venzke, Joel
Bartschat, Klaus
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Abstract
We investigate two-pathway interferences between nonresonant one-photon and resonant two-photon ionization of atomic hydrogen. In particular, we analyze in detail the photoionization mediated by the fundamental frequency and the second harmonic of a femtosecond VUV pulse when the fundamental is tuned near an intermediate atomic state. Following our recent study [Phys. Rev. A 91, 063418 (2015)PLRAAN1050-294710.1103/PhysRevA.91.063418] of such effects with linearly polarized light, we analyze a similar situation with circularly polarized radiation. As a consequence of the richer structure in circularly polarized light, characterized by its right-handed or left-handed helicity, we present and discuss various important features associated with the photoelectron angular distribution.
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Physical Review A
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93
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3
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© 2021 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
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Atomic and molecular physics
Science & Technology
Physical Sciences
Optics
Physics, Atomic, Molecular & Chemical
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Douguet, N; Grum-Grzhimailo, AN; Gryzlova, EV; Staroselskaya, EI; Venzke, J; Bartschat, K, Photoelectron angular distributions in bichromatic atomic ionization induced by circularly polarized VUV femtosecond pulses, Physical Review A, 2016, 93 (3), pp. 033402