| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000398946 |
| ISSN: | 0103-9733 |
| Autores: | Afaq, A1 Farooq, K2 |
| Instituciones: | 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 |
| Año: | 2014 |
| Periodo: | Dic |
| Volumen: | 44 |
| Número: | 6 |
| Paginación: | 609-613 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | 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 |
| Disciplinas: | Física y astronomía |
| Palabras clave: | 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 |
| Texto completo: | Texto completo (Ver PDF) |
