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We analyze the absorption of a weak probe field in singly charged n-doped quantum dots in the presence of an external magnetic field in the Voigt geometry. The dots are modeled as double lambda systems. A laser field pumps two of the four active[...]texto impreso
We use mutually delayed and partially overlapping optical pulses, similar to those used in stimulated Raman adiabatic passage and its variations, for the coherent control of quantum dot spin states in the Voigt geometry. We consider the quantum [...]texto impreso
Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel ; Carreño Sánchez, Fernando | IOP Publishing | 2021-01-16Entanglement generation and control of two spatially separated asymmetric quantum dots with broken inversion symmetry and mediated by a photonic cavity is studied using a quantum master equation formalism. The quantum dots are coherently driven [...]texto impreso
Cabrera Granado, Eduardo ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Díaz García, Elena ; López Alonso, José Manuel ; Arrieta Yáñez, Francisco | 2015-02-19Nuevos documentos de trabajo y consulta basados en IPython Notebook han sido desarrollados con el fin de ofrecer nuevas herramientas para el aprendizaje de la asignatura de Óptica Biomédica de la Facultad de Óptica y Optometría. Este tipo de doc[...]texto impreso
Cox, Joel ; Singh, Mahi R. ; Gumbs, Godfrey ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando | American Physical Society | 2012-09-28We study theoretically the dipole-dipole interaction and energy transfer in a hybrid system consisting of a quantum dot and graphene nanodisk embedded in a nonlinear photonic crystal. In our model, a probe laser field is applied to measure the e[...]texto impreso
Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Zhuo, Zhong C. ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando | OSA Publising | 2011-06-07The efficiency of the dynamic population gratings recorded in highly doped erbium fibers has been studied. We find that the grating response increases with optical density, although the presence of erbium ion pairs in fibers with ion density of [...]texto impreso
Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Carreño Sánchez, Fernando ; Cabrera Granado, Eduardo ; Antón Revilla, Miguel Ángel ; Jarabo Lallana, Sebastián | Elsevier Science BV | 2007-11-01The effect of ion density on slow light propagation enabled by coherent population oscillations has been experimentally investigated for highly doped erbium fibers at room temperature. We found that fractional delay increases with ion density. A[...]texto impreso
Gómez Calderón, Óscar ; Cabrera Granado, Eduardo ; Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel ; Carreño Sánchez, Fernando ; Guerra, J. M. | American Physical Society | 2004-04-23Phase domains and phase solitons in two-level amplifying media damped by a squeezed vacuum are predicted for the first time. Two different types of pattern formation are found depending on the relative value of the cavity detuning to the squeeze[...]texto impreso
Sánchez Pérez, Isabel ; Alda Serrano, Javier ; Carreño Sánchez, Fernando ; Cabrero Granado, Eduardo ; Peces Peña, Dolores ; Garrido Mercado, Rafaela ; Puell Marín, María Cinta ; Martín Pérez, Yolanda ; López Alonso, José Manuel ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Movilla Serrano, Jesús María | 2016-01texto impreso
By taking into account a geometrical interpretation of the measurement process [1, 2], we define a set of measures of uncertainty. These measures will be called geometrical entropies. The amount of information is defined by considering the metri[...]texto impreso
We analyze the storage and retrieval of a weak light pulse, having two orthogonally (circularly) polarized components, onto an atomic ensemble of four-level atoms of the tripod type driven by a far detuned coupling field. The atoms are subject t[...]texto impreso
Egatz-Gómez, Ana ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Carreño Sánchez, Fernando ; Antón Revilla, Miguel Ángel ; Gort, Elske M. | Elsevier Science BV | 2013-06We study the green upconversion luminescence of Er3+ ions in an aluminosilicate optical fiber upon near infrared excitation at 787 nm. The dependence of the upconversion luminescence on temperature has been determined. As temperature drops from [...]texto impreso
Zoido Chamorro, Jesús Manuel ; Carreño Sánchez, Fernando ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 1995-04-10We present an application of linear-programming techniques to generate metameric spectral radiant power distributions. Conditions concerning physical color properties, dominant wavelength, and excitation purity lead us to propose criteria that p[...]texto impreso
Ezquerro Rodríguez, José Miguel ; Carreño Sánchez, Fernando ; Zoido Chamorro, Jesús Manuel | John Wiley & Sons, Inc. | 2003-02A systematic method of analyzing the colorimetric behavior of a set of observers is proposed. The differences between each observer and a standard one are analyzed with different procedures in two color-representation systems. It is apparent tha[...]texto impreso
We present a discussion on the intra-observer and inter-observer variability in judging small color-differences when considering the experimental data provided by Wyszeky and Fielder. By using standard techniques in statistical theory we evalu[...]
