Photo-Detachment of a Noncollinear Triatomic Anion



Document title: Photo-Detachment of a Noncollinear Triatomic Anion
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000398946
ISSN: 0103-9733
Authors: 1
2
Institutions: 1University of the Punjab, Centre of Excellence in Solid State Physics, Lahore, Punjab. Pakistán
2Dalian University of Technology, School of Physics and Optoelectronic Technology, Dalian, Liaoning. China
Year:
Season: Dic
Volumen: 44
Number: 6
Pages: 609-613
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico
English abstract Photo-detachment of a noncollinear triatomic anion is investigated by considering each atom of the molecular anion as a coherent source of detached-electron waves, originating in all possible directions. The waves traveling along three different trajectories result in a quantum interference that displays on a screen placed at a very large distance from the system. To explain this quantum interference, an analytical formula of detached-electron flux is derived using a collinear three-center model recently published. The detached-electron flux versus laser photon energy expression displays molecular geometry-dependent oscillatory structures on an observation plane. This oscillatory behavior in the result can be explained using the semiclassical closed-orbit theory. The outgoing electron waves produced from one coherent center are propagated in the vicinity of the sources at two other coherent centers, which cause these oscillations. It is also observed that in a particular case, the noncollinear triatomic system reduces to the collinear three-center system
Disciplines: Física y astronomía
Keyword: Física atómica y molecular,
Moléculas triatómicas,
Aniones,
Interferencia cuántica,
Fotodesprendimiento
Keyword: Physics and astronomy,
Atomic and molecular physics,
Triatomic molecules,
Anions,
Quantum interference,
Photo-detachment
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