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Autor Gómez Calderón, Óscar |
Documentos disponibles escritos por este autor (35)
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Ortega Rodríguez, Alicia ; Shen, Yingli ; Zabala Gutiérrez, Irene ; Santos, Harrison D. A. ; Torres Vera, Vivian ; Ximedes, Erving ; Villaverde Cantizano, Gonzalo ; Lifante, José ; Gerke, Christoph ; Fernández Monsalve, Nuria ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Marqués Hueso, José ; Méndez González, Diego ; Laurenti, Marco ; Jones, Callum M. S. ; López Romero, Juan Manuel ; Contreras Cáceres, Rafael ; Jaque García, Daniel ; Rubio Retama, Jorge | ACS | 2020-02-18Ag2S semiconductor nanoparticles (NPs) are near-infrared luminescent probes with outstanding properties (good biocompatibility, optimum spectral operation range, and easy biofunctionalization) that make them ideal probes for in vivo imaging. Ag2[...]![]()
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Díaz García, Elena ; Cabrera Granado, Eduardo ; Domínguez-Adame Acosta, Francisco ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Díaz Fernández, Álvaro ; Villas Pazos, Alberto | 2018-06-30La iniciativa de este proyecto viene justificada a la vista del gran interés generado por algunos de los materiales docentes diseñados por nuestro grupo en anteriores proyectos, en los que se vienen desarrollando diferentes herramientas docentes[...]![]()
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Méndez González, Diego ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; González Izquierdo, Jesús ; Bañares Morcillo, Luis ; López Díaz, David ; Velazquez Salicio, M. Mercedes ; Lopez Cabarcos, Enrique ; Rubio Retama, Jorge ; Laurenti, Marco | Academic Press Inc Elsevier Science | 2020-04-20Upconversion nanoparticles (UCNP) are increasingly used due to their advantages over conventional fluorophores, and their use as resonance energy transfer (RET) donors has permitted their application as biosensors when they are combined with app[...]![]()
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Méndez González, Diego ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Laurenti, Marco ; Cabrera Granado, Eduardo ; Egatz-Gómez, Ana ; Lopez Cabarcos, Enrique ; Rubio Retama, Jorge ; Díaz García, Elena | RSC | 2019-08-07Metallic nanostructures have the potential to modify the anti-Stokes emission of upconverting nanoparticles (UCNPs) by coupling their plasmon resonance with either the excitation or the emission wavelength of the UCNPs. In this regard gold nanop[...]![]()
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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[...]![]()
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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 [...]![]()
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Cabrera Granado, Eduardo ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Guerra Pérez, José Manuel | Optical Society of America | 2006We report the first experimental observation to our knowledge of a dynamic transition from modelike patterns to completely disordered patterns in a large-aspect-ratio Nd:YAG laser. Recordings of near-field patterns with an integration time as sm[...]![]()
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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[...]![]()
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Cabrera Granado, Eduardo ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Guerra Pérez, José Manuel | American Physical Society | 2006-12-06We measure polarization-resolved instantaneous patterns in a large-aspect ratio quasi-isotropic Nd:YAG laser. High correlation between the instantaneous orthogonal polarization patterns recorded at the earlier stages of the laser pulse has been [...]![]()
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Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Laurenti, Marco ; Méndez González, Diego ; Egatz-Gómez, Ana ; Lopez Cabarcos, Enrique ; Cabrera Granado, Eduardo ; Díaz García, Elena ; Rubio Retama, Jorge | Amer Chemical Soc | 2018-05Förster resonant energy transfer (FRET) with upconverting nanoparticles (UCNPs) as donors and quantum dots (QDs) as acceptors has been regarded as a promising tool for biosensing applications. In this work, we use time-resolved fluorescence spec[...]![]()
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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[...]![]()
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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 | 2016-01![]()
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Cabrera Granado, Eduardo ; Díaz García, Elena ; Soler Rus, Odín ; Gómez Calderón, Óscar ; Melle Hernández, Sonia | 2009Este documento tiene como objetivo ayudar a los primeros pasos en la instalación y manejo de la pantalla digital de bajo coste basada en el mando de control Wii Remote. En un primer apartado, se enumeraran los materiales necesarios para construi[...]![]()
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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 [...]![]()
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Díaz García, Elena ; Cabrera Granado, Eduardo ; Gómez Calderón, Óscar | 2016-05-25We study the slow-light performance in the presence of exciton – exciton interaction in films of linear molecular aggregates at the nanometer scale. In particular, we consider a four-level model to describe the creation/annihilation[...]![]()
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Se presenta un conjunto de lecciones y ejercicios interactivos utilizando documentos Jupyter Notebook. Se combinan explicaciones teóricas junto a simulaciones realizadas en Python interactivas para profundizar en conceptos de difracción e interf[...]![]()
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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[...]![]()
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Soler Rus, Miguel Odín ; Cabrera Granado, Eduardo ; Díaz García, Elena ; Gómez Calderón, Óscar ; Melle Hernández, Sonia | 2015El objetivo de este trabajo es el desarrollo de un puntero infrarrojo de bajo coste y fácil construcción para su uso en enseñanza. Principalmente se trata de una herramienta docente que, combinada con un detector comercial (el Wii Remote), permi[...]![]()
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Cabrera Granado, Eduardo ; Díaz García, Elena ; Gómez Calderón, Óscar ; Melle Hernández, Sonia ; Domínguez-Adame Acosta, Francisco ; Ezquerro Rodríguez, José Miguel | 2013Tras la evaluación del uso de documentos interactivos basados en la herramienta IPython Notebook para aplicaciones docentes, hemos mostrado que esta plataforma ofrece un entorno rico en contenidos que facilitan el aprendizaje, integrando de mane[...]![]()
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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[...]![]()
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Díaz García, Elena ; Cabrera Granado, Eduardo ; Gómez Calderón, Óscar ; Maestre Varea, David ; Domínguez-Adame Acosta, Francisco | 2016-01En este trabajo presentamos diferentes entornos online de gran utilidad para el proceso enseñanza-aprendizaje y la autoevaluación o evaluación automática de competencias científicas en el cálculo numérico a nivel universitario. Destacamos las ve[...]![]()
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Gómez Calderón, Óscar ; Melle, Sonia ; Gonzalo Fonrodona, Isabel | American Physical Society | 2002-02We study a single-mode laser system, whose active medium consists of molecules with a large difference between excited and ground electrical permanent-dipole moments, In this case, the Maxwell-Bloch equations Lire further coupled by nonlinear te[...]![]()
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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 [...]![]()
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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[...]![]()
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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[...]![]()
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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[...]![]()
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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[...]![]()
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Arrieta Yáñez, Francisco ; Gómez Calderón, Óscar ; Melle Hernández, Sonia | IOP Publishing, Ltd. | 2010-09-24In this paper we review the main results on slow and fast light induced by coherent population oscillations in optical fibres doped with erbium ions. We explain the physics behind this technique and we describe the experimental realization. Fina[...]![]()
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Cabrera Granado, Eduardo ; Díaz García, Elena ; Gómez Calderón, Óscar | American Physical Society | 2011-06-29We study slow-light performance of molecular aggregates arranged in nanofilms by means of coherent population oscillations. The molecular cooperative behavior inside the aggregate enhances the delay of input signals in the gigahertz range in com[...]![]()
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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[...]![]()
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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[...]![]()
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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[...]![]()
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Transverse effects in the laser threshold, originated by electronic-vibrational coupling in the active centers, are analyzed theoretically by means of the semiclassical two-level Maxwell-Bloch equations. A single longitudinal mode is considered.[...]![]()
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Santos, Harrison D. A. ; Zabala Gutiérrez, Irene ; Shen, Yingli ; Lifante, José ; Ximendes, Erving ; Laurenti, Marco ; Méndez González, Diego ; Melle Hernández, Sonia ; Gómez Calderón, Óscar ; Lopez Cabarcos, Enrique ; Fernández Monsalve, Nuria ; Chavez Coria, Irene ; Lucena Agell, Daniel ; Monge, Luis ; Mackenzie, Mark D. ; Marqués Hueso, José ; Jones, Callum M. S. ; Jacinto, Carlos ; Rosal, Blanca, del ; Kar, Ajoy K. ; Rubio Retama, Jorge ; Jaque García, Daniel | Nature Publishing Group | 2020-06-10Optical probes operating in the second near-infrared window (NIR-II, 1,000-1,700?nm), where tissues are highly transparent, have expanded the applicability of fluorescence in the biomedical field. NIR-II fluorescence enables deep-tissue imaging [...]