Fano-Liouville Spectral Signatures in Open Quantum Systems
Por:
Finkelstein-Shapiro D., Urdaneta I., Calatayud M., Atabek O., Mujica V., Keller A.
Publicada:
1 ene 2015
Categoría:
Physics and Astronomy (miscellaneous)
Resumen:
The scattering amplitude from a set of discrete states coupled to a continuum became known as the Fano profile, characteristic for its asymmetric line shape and originally investigated in the context of photoionization. The generality of the model and the proliferation of engineered nanostructures with confined states gives immense success to the Fano line shape, which is invoked whenever an asymmetric line shape is encountered. However, many of these systems do not conform to the initial model worked out by Fano in that (i) they are subject to dissipative processes and (ii) the observables are not entirely analogous to the ones measured in the original photoionization experiments. In this Letter, we work out the full optical response of a Fano model with dissipation. We find that the exact result for the excited population, Raman, Rayleigh, and fluorescence emission is a modified Fano profile where the typical line shape has an additional Lorentzian contribution. Expressions to extract model parameters from a set of relevant observables are given. © 2015 American Physical Society. © 2015 American Physical Society.
Filiaciones:
Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85282, United States
Sorbonne Universités, UPMC Université Paris 06, UMR 7616, Laboratoire de Chimie Théorique, Paris, F-75005, France
CNRS, UMR 7616, Laboratoire de Chimie Théorique, Paris, F-75005, France
Institut des Sciences Moléculaires d'Orsay, Bâtiment 350, UMR8214, CNRS-Université Paris-Sud, Orsay, 91405, France
Institut Universitaire de France, France
All Open Access, Bronze
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