Información del autor
Autor Carreño Sánchez, Fernando |
Documentos disponibles escritos por este autor (48)
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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[...]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
Zoido Chamorro, Jesús Manuel ; Carreño Sánchez, Fernando ; Bernabeu Martínez, Eusebio | Sociedad Española de Óptica | 1999In this work we propose a systematic procedure in order to integrate an arbitrary function over any chromaticity diagram similar to that associated with the CIE 1931 standard observer. The precision of this method os checked when smooth function[...]texto impreso
The dynamics of thermoplastic-photoconductor films is reviewed. A theory of thermoplastic film deformation is presented for a three-layer structure in air with modified boundary conditions. The amplitude of the deformation A versus the spatial f[...]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
Zoido Chamorro, Jesús Manuel ; Carreño Sánchez, Fernando ; Bernabeu Martínez, Eusebio | Sociedad Española de Óptica | 1996A systematic analysis of the results obtained by MacAdam is presented. We repeat the calculations with the aid of a computer using the data supplied in his paper and the same equations. Significative differences emerge between the results obtain[...]texto impreso
This letter analyzes the quality of reproduction of holograms recorded in thermoplastic media as a function of the variations in coating thickness of the different layers. The fidelity of reproduction is investigated by means of a phase sampling[...]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
Carreño Sánchez, Fernando ; Martínez Antón, Juan Carlos ; Bernabeu Martínez, Eusebio | American Institute of Physics | 1994-08Optical interference fringe measurements of the thickness of weakly absorbing media can be rapid, accurate, and nondestructive. When the refractive index n of the sample is known, it will give us the layer thickness d. If, however, n is unknown,[...]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 [...]texto impreso
Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Egatz-Gómez, Ana ; Cabrera Granado, Eduardo ; Carreño Sánchez, Fernando ; Salavagione, H. J. ; Antón Revilla, Miguel Ángel | OSA Publishing | 2014-04-08We analyze the phase shift induced in an amplitude-modulated laser beam propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. This phase shift arises from the thermally induced nonlinear refraction in the s[...]texto impreso
Carreño Sánchez, Fernando ; Yannopapas, V. ; Antón Revilla, Miguel Ángel ; Paspalakis, Emmanuel | American Physical Society | 2019-08-05We study theoretically the statistics of photons generated by a quantum emitter located in the vicinity of a periodic plasmonic nanostructure. The presented formalism is based on a macroscopic QED formalism in conjunction with a density-matrix a[...]texto impreso
Carreño Sánchez, Fernando ; Antón Revilla, Miguel Ángel ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Cabrera Granado, Eduardo ; Cox, Joel ; Singh, Mahi R. ; Egatz-Gómez, Ana | American Institute of Physics Publising | 2014A scheme for terahertz (THz) generation from intraband transition in a self-assembled quantum dot (QD) molecule coupled to a metallic nanoparticle (MNP) is analyzed. The QD structure is described as a three-level atom-like system using the densi[...]texto impreso
Cox, Joel D. ; Singh, Mahi R. ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando | IOP Publishing Ltd. | 2013-08-29Nonlinear two-photon absorption in a quantum dot–graphene nanoflake nanocomposite system has been investigated. An external laser field is applied to the nanocomposite to simultaneously observe two-photon processes in the quantum dot and excite [...]texto impreso
Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Melle Hernández, Sonia ; Calderón, Oscar Gómez ; Cabrera Granado, Eduardo ; Cox, Joel ; Singh, Mahi R. | American Physical Society | 2012We have investigated the coherent transfer of excitonic populations in a semiconductor quantum dot (SQD) modulated by the surface plasmon of a metallic nanoparticle (MNP). The SQD is considered as a three-level V-type atomic system. We applied a[...]texto impreso
Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Arrieta Yáñez, Francisco ; Cabrera Granado, Eduardo | American Physical Society | 2008-11-10We analyze the propagation regime of an amplitude-modulated 1536 nm signal when traveling along a highly doped erbium fiber pumped at 977 nm as a function of the fiber length. A propagation-induced transition from superluminal to subluminal p[...]texto impreso
Linear and nonlinear properties in an ensemble of single-hole spin InGaAs/GaAs quantum dots are theoretically studied. The application of a DC magnetic field in the semiconductor growth plane induces a Zeeman splitting of the hole levels which c[...]texto impreso
Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Cabrera Granado, Eduardo | IOP Publishing, Ltd. | 2016-02We propose a scheme for controlling the absorption and RFS of a quantum dot (QD) with broken inversion symmetry interacting with a plasmonic nanostructure. The QD is described as a two-level atom-like system with a permanent dipole moment in the[...]texto impreso
Carreño Sánchez, Fernando ; Antón Revilla, Miguel Ángel ; Yannopapas, V. ; Paspalakis, E. | American Physical Society | 2016-07-19We theoretically study the resonance fluorescence spectrum of a three-level quantum emitter coupled to a spherical metallic nanoparticle. We consider the case that the quantum emitter is driven by a single laser field along one of the optical tr[...]texto impreso
Carreño Sánchez, Fernando ; Antón Revilla, Miguel Ángel ; Arrieta Yáñez, Francisco | American Physical Society | 2013-11-08The resonance fluorescence spectrum (RFS) of a hybrid system consisting of a p-doped semiconductor quantum dot (QD) coupled to a metallic nanoparticle (MNP) is analyzed. The quantum dot is described as a four-level atomlike system using the dens[...]texto impreso
Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Egatz-Gómez, Ana | OSA Publishing | 2012The homogeneous linewidth of the transition I15/24?I13/24 in highly doped erbium fibers and its dependence with temperature in the range from 10 to 50 K are experimentally characterized using spectral hole burning. The homogeneous linewidth depe[...]texto impreso
Carreño Sánchez, Fernando ; Arrieta Yáñez, Francisco ; Antón Revilla, Miguel Ángel | Elsevier | 2015-05-15The spin initialization of a hybrid system consisting of a p-doped semiconductor quantum dot coupled to a gold bowtie nanoantenna is analyzed. The quantum dot is described as a four-level atom-like system using the density matrix formalism. The [...]texto impreso
Gonzalo Fonrodona, Isabel ; Antón Revilla, Miguel Ángel ; Carreño Sánchez, Fernando ; Gómez Calderón, Óscar | American Physical Society | 2005-09-13The squeezing spectrum of the fluorescent light is investigated for a laser-driven three-level atom of the Lambda configuration when quantum interference of the decay channels is accounted for. We show that when the two atomic transitions contri[...]texto impreso
Carreño Sánchez, Fernando ; Zoido Chamorro, Jesús Manuel | The Optical Society Of America | 1999-01-01By assuming that color matches are normally distributed in XYZ space, we present a rigorous statistical technique to obtain regions of equally noticeable chromaticity differences. The probability density function of color matches in (x, y, Y) sp[...]texto impreso
Carreño Sánchez, Fernando ; Gómez Calderón, Óscar ; Antón Revilla, Miguel Ángel ; Gonzalo Fonrodona, Isabel | American Physical Society | 2005-06-15We study the dispersion and absorption spectra of a weak probe in a Delta-type three-level atomic system with closely ground sublevels driven by a strong field and damped by a broadband squeezed vacuum. We analyze the interplay between the spont[...]texto impreso
Zoido Chamorro, Jesús Manuel ; Carreño Sánchez, Fernando ; Bernabeu Martínez, Eusebio | IOP Publishing Ltd. | 1999-05Colour detection systems can be specified in terms of a set of spectral functions (colour-matching functions in the case of human observers). By taking these functions into account we define the characteristic matrix associated with a given colo[...]texto impreso
We present a discussion about the influence of luminance on the geometry of color-difference thresholds. By assuming that color matchings are normally distributed in XYZ space, we have shown [Appl Opt 38:208–219 (1999)] that the probability dens[...]texto impreso
Ezquerro Rodríguez, José Miguel ; Carreño Sánchez, Fernando ; Zoido Chamorro, Jesús Manuel ; Bernabeu Martínez, Eusebio | John Wiley & Sons, Inc. | 2001-08In this research we compare the colorimetric behavior of several observers. For color centers recommended by CIE we have produced large sets of spectral distributions, which are metameric for the CIE 1931 standard observer. For each one of the c[...]texto impreso
Presented in this article is a method for the determination of the Weber fraction by analyzing data obtained from color-matching experiments. The method is based on a rigorous analysis of the probability density function derived from discriminat[...]texto impreso
Carreño Sánchez, Fernando ; Ezquerro Rodríguez, José Miguel ; Zoido Chamorro, Jesús Manuel | John Wiley & Sons, Inc. | 2006-12We present an analytical method to analyze, from a theoretical point of view, the influence of color-matching functions on the perception of luminance thresholds. We show that the thresholds depend on the spectral responsivities of each observer[...]texto impreso
Carreño Sánchez, Fernando ; Ezquerro Rodríguez, José Miguel ; Zoido Chamorro, Jesús Manuel | John Wiley & Sons, Inc. | 2009-06An analytical method to determine how color-matching functions influence the perception of chromaticity differences is proposed. We show that, as a consequence of the observer metamerism, a metameric color-match perceived by one observer may app[...]texto impreso
Melle Hernández, Sonia ; Calderón, Oscar Gómez ; Egatz-Gómez, Ana ; Cabrera Granado, Eduardo ; Carreño Sánchez, Fernando ; Antón Revilla, Miguel Ángel | The Optical Society Of America | 2015-10-26We experimentally study the temporal dynamics of amplitude-modulated laser beams propagating through a water dispersion of graphene oxide sheets in a fiber-to-fiber U-bench. Nonlinear refraction induced in the sample by thermal effects leads to [...]texto impreso
The obtention of spontaneous Raman photons is analyzed in singly charged p-doped quantum dots in the absence of an external magnetic field. The use of a far detuned single driving laser allows to obtain a Raman photon line which exhibits subnatu[...]