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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
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
We analyze theoretically the entanglement between two non-planar and light identical molecules (e.g., pyramidal NH3) that present inversion doubling due to the internal spatial inversion of their nuclear conformations by tunneling. The peculiari[...]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
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
Antón Revilla, Miguel Ángel ; Arrieta Yáñez, Francisco ; Cabrera Granado, Eduardo ; Carreño Sánchez, Fernando ; Ezquerro Rodríguez, José Miguel ; Gómez Calderón, Óscar ; Gonzalo Fonrodona, Isabel ; Guerra Pérez, José Manuel ; Melle Hernández, Sonia ; Soler Rus, Miguel Odín ; Sánchez Balmaseda, Margarita María ; Weigand Talavera, Rosa María | Sociedad Española de Óptica | 2011En este trabajo presentamos las líneas de investigación del Grupo de Física del Láser, Óptica Cuántica y Óptica No Lineal de la UCM. La investigación comprende trabajos experimentales y teóricos en el desarrollo de prototipos de láser, análisi[...]texto impreso
Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Caro, César E. ; Cabrera Granado, Eduardo ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando | Optical Society of America | 2008-04-15We report a change from sub- to superluminal propagation upon increasing the modulation frequency of an amplitude-modulated 1550?nm signal when propagating through highly doped erbium fibers pumped at 980?nm. We show that the interplay between t[...]texto impreso
We study the optical response of a coupled asymmetric semiconductor quantum dot-spherical metal nanoparticle structure. The asymmetric quantum dot has permanent electric dipole moments that also interact with light. We derive the density matrix [...]texto impreso
Antón Revilla, Miguel Ángel ; Razavi, S. Maede ; Carreño Sánchez, Fernando ; Thanopulos, Ioannis ; Paspalakis, Emmanuel | American Physical Society | 2017-12-08A two-level quantum emitter with broken inversion symmetry simultaneously driven by an optical field and a microwave field that couples to the permanent dipole's moment is presented. We focus to a situation where the angular frequency of the mic[...]texto impreso
Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Cabrera Granado, Eduardo ; Singh, Mahi R. | American Physical Society | 2013-05-07The preparation of quantum states with a defined spin is analyzed in a hybrid system consisting of a p-doped semiconductor quantum dot (QD) coupled to a metallic nanoparticle. The quantum dot is described as a four-level atom-like system using [...]
