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Autor Gómez Calderón, Óscar |
Documentos disponibles escritos por este autor (35)
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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 [...]