Información del autor
Documentos disponibles escritos por este autor (61)
Añadir el resultado a su cesta Hacer una sugerencia Refinar búsqueda
texto impreso
Martínez Matos, Óscar ; Cheben, Pavel ; Schmid, Jens H. ; Bogdanov, Alexei L. ; Calvo Padilla, María Luisa ; Delâge, André ; Densmore, Adam ; Janz, Siegfried ; Lamontagne, Boris ; Lapointe, Jean ; Post, Edith ; Powell, Ian ; Rodrigo Martín-Romo, José Augusto ; Waldron, Phillip ; Xu, Dan-Xia | IEEE | 2006We present several new concepts to extend the capabilities of arrayed waveguide grating spectrometers. Strong lateral mode confinement wavegaide structure in the focal plane is used to increase resolution, a Michelson-type AWG spectrometer can i[...]texto impreso
Chevalier del Río, Margarita ; Alieva Krasheninnikova, Tatiana ; Martínez Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Canabal Boutureira, Hector Alfonso ; Comas Renfigo, María Dolores ; Soto Rueda, Juan Manuel ; Angulo Curto, Mercedes ; Castillo Garcia, Maria | 2020-06-19El objetivo del proyecto es el diseño de las prácticas de laboratorio para la asignatura Instrumentación Biomédica del Master de Física Biomédica. Se pretende mejorar el aprendizaje potenciando la participación activa y autonomía de los estudian[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | Elsevier Science BV | 2007-10-15Gyrator transform is a new tool for manipulation of two-dimensional signals such as images or laser beam profiles. Here we demonstrate various applications of the gyrator transform for image processing. Several aspects such as noise reduction, f[...]texto impreso
Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Janz, Siegfried ; Rodrigo Martín-Romo, José Augusto ; Xu, Dan-Xia ; Delâge, André | IEEE - Inst. Electrical Electronics Engineers Inc. | 2006-03The authors propose a new wavelength-dispersive principle based on waveguide group-index modification and apply this principle in a new type of arrayed waveguide dispersive element based on modified group index. The element is composed by an arr[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Davis, Jeffrey A. ; Ramirez, Laura | The International Society for Optical Engineering (SPIE) | 2004We study experimentally and by numerical simulation the Fresnel diffraction on the recently introduced fractal zone plates (ZPs) associated with Cantor sets'. The focusing properties of these ZPs and the evolution of the intensity patterns at th[...]texto impreso
Vaveliuk, Pablo ; Lencina, Alberto ; Rodrigo Martín-Romo, José Augusto ; Martínez Matos, Óscar | American Physical Society | 2015-09-28In this paper, a meaningful classification of optical caustic beams in two dimensions is presented. It is demonstrated that the phase symmetry of the beam's angular spectrum governs the optical catastrophe, which describes the wave properties of[...]texto impreso
Martínez Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Cámara, Alejandro ; Cheben, Pavel ; Calvo Padilla, María Luisa | The Optical Society Of America | 2011-03-28In this work, we propose a robust and versatile approach for the characterization of the complex field amplitude of holographically generated coherent-scalar paraxial beams. For this purpose we apply an iterative algorithm that allows recovering[...]texto impreso
Alieva, Tatiana Krasheninnikova ; Abramochkin, Eugeny ; Rodrigo Martín-Romo, José Augusto | IEEE | 2017-09-18Coherent singular beams, in particular optical vortices, are attractive for different applications: free-space optical communication, imaging, particle manipulation, etc. However, their deformation during propagation through random media and spe[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa ; Davis, Jeffrey A. | Taylor and Francis Ltd. | 2005-12-15The paper reports studies, both experimental and using numerical simulation, of the Fresnel diffraction by recently introduced fractal zone plates associated with triadic and quintic Cantor sets. The evolution of the intensity patterns at planes[...]texto impreso
Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del | American Institute of Physics | 2007-10-01We report results on the temporal evolution of the diffraction efficiency of volume holographic gratings recorded in a photopolymer glass incorporating Zr-based high refractive index species (HRIS) at molecular level. We record high spatial freq[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Optical Society of America | 2015-08-01We show that the propagation of the widely used Schell-model partially coherent light can be easily understood using the ambiguity function. This approach is especially beneficial for the analysis of the mutual intensity of Schell-model beams (S[...]texto impreso
Kundikova, Nataliya D. ; Ryzhkova, A. V. ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto | Maik Nauka, Interperiodica, Springer-Verlag | 2008-05The effect of the Gaussian beam width on the focusing properties of the chainlike Gaussian beam formed upon diffraction of laser radiation on a binary amplitude mask is studied. It is found that a decrease in the Gaussian beam width increases th[...]texto impreso
Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Monte Muñoz de la Peña, Francisco del ; Rodrigo Martín-Romo, José Augusto | American Physical Society | 2006-08-25We report observations of periodic oscillatory behavior of the angular selectivity, near the Bragg angle, in volume holographic gratings recorded in a new photopolymerizable glass with high refractive index modulation. We have detected the prese[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | Optical Society of America | 2007-10The gyrator transform (GT) promises to be a useful tool in image processing, holography, beam characterization, mode transformation, and quantum information. We introduce what we believe to be the first flexible optical experimental setup that p[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Society of Photo-optical Instrumentation Engineers | 2015-03-11We present a novel technique for coherence engineering of the microscope illumination based on a DLP projector providing fast (millisecond range) switchable both temporal and spatial coherence design. Its performance is experimentally demonstrat[...]
