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Autor Rodrigo Martín-Romo, José Augusto |
Documentos disponibles escritos por este autor (61)
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Rodrigo Martín-Romo, José Augusto ; Soto Rueda, Juan Manuel ; Alieva, Tatiana Krasheninnikova | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2019Partially coherent optical diffraction tomography (PC-ODT) is a labelfree quantitative 3D imaging technique based on the refractive index contrast. It provides fast non-interferometric speckle noise-free imaging compatible with conventional wide[...]texto impreso
Plasmonic nanoparticles are able to control light at nanometre-scale by coupling electromagnetic fields to the oscillations of free electrons in metals. Deposition of such nanoparticles onto substrates with tailored patterns is essential, for ex[...]texto impreso
Rodrigo Martín-Romo, José Augusto | Universidad Complutense de Madrid, Servicio de Publicaciones | 2008-06-09This work involves a theoretical, numerical as well as an experimental study. On the basis of a matrix formalism, we developed a flexible optical system design corresponding to ortho-symplectic transformations; rotator, separable fractional Fou[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | American Institute of Physics (AIP) | 2006In this work we propose a flexible symmetric configuration for the separable fractional FT composed by three generalized lenses. The distances between the lenses are fixed. The fractional angles are acieved by means of lens rotations.texto impreso
Calvo Padilla, María Luisa ; Alieva, Tatiana Krasheninnikova ; Bastiaans, Martin J. ; Rodrigo Martín-Romo, José Augusto ; Rodríguez Merlo, D. | SPIE--The International Society for Optical Engineering | 2004We present a short overview on the application of fractional cyclic and linear canonical transformations to optical signal processing and dedicate some of the discussions to the particular features found in the fractional Fourier transform domain.texto impreso
Davis, Jeffrey A. ; Ramirez, Laura ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | Alan E. Willner, University of Southern California | 2004-06-15We report the first experimental results, to our knowledge, with fractal zone plates implemented in a liquid-crystal display. Our results largely agree with theory for the axial irradiance distribution of these lenses. The dependence of the shap[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Rodríguez Merlo, Daniel ; Calvo Padilla, María Luisa ; Alieva, Tatiana Krasheninnikova | Maik Nauka, Interperiodica, Springer-Verlag | 2003-07Experimental results are presented for light diffraction under the Fresnel regime by two types of fractal gratings: triadic Cantor bars and Vicsek fractals. It is shown that the evolution of the diffraction patterns in the Fresnel regions reveal[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Cheben, Pavel ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa ; Scott, Alan ; Solheim, Brian ; Xu, Dan-Xia ; Delâge, André | The Optical Society Of America | 2007-12-10We present an analysis of Fourier-transform arrayed waveguide gratings in the Fresnel diffraction regime. We report a distinct spatial modulation of the interference pattern referred to as the Moire-Talbot effect. The effect and its influence in[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | The International Society for Optical Engineering (SPIE) | 2006Wide application of the laser beams in science, technology and biomedicine demands the generation of the beams with desirable structure. In particular for optical trapping the beams with high transversal gradient of intensity distribution or dou[...]texto impreso
Martínez Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Hernández Garay, María de la Paz ; Izquierdo González, Jesús ; Weigand Talavera, Rosa María ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Vaveliuk, Pablo ; Bañares Morcillo, Luis | The Optical Society Of America | 2010-03-01We present an approach to generate paraxial laser beams with arbitrary spatial distribution in the femtosecond time regime. The proposed technique is based upon a pair of volume phase holographic gratings working in parallel arrangement. It expl[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | The Optical Society Of America | 2007-03-05In this work we formulate the main properties of the gyrator operation which produces a rotation in the twisting (position-spatial frequency) phase planes. This transform can be easily performed in paraxial optics that underlines its possible ap[...]texto impreso
Martínez Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Vaveliuk, Pablo ; Calvo Padilla, María Luisa | Optical Society of America | 2011-02-15We propose a spectrum analyzer based on the properties of a hologram recorded with the field transmitted by a Fabry-Perot etalon. The spectral response of this holographic Fabry-Perot spectrometer (HFPS) is analytically investigated in the parax[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Optical Society of America | 2014-10-01Partially coherent illumination provides significant advantages such as speckle-free imaging and enhanced optical sectioning in optical microscopy. The knowledge of the spatial and temporal coherence is crucial to obtain accurate quantitative ph[...]texto impreso
Alieva, Tatiana Krasheninnikova ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa | American Institute of Physics (AIP) | 2007We introduce the gyrator transform which produces a rotation of two-dimensional signal in phase space. Main properties of this transform are considered. The flexible optical set up for gyrator transform experimental implementation is discussed. [...]texto impreso
Soto Rueda, Juan Manuel ; Rodrigo Martín-Romo, José Augusto ; Mas, Alicia ; Domínguez Bernal, Gustavo ; Alieva, Tatiana Krasheninnikova | Wiley?VCH Verlag GmbH | 2019-09In this work, we report the use of refractive index (RI) tomography for quantitative analysis of unstained DH82 cell line infected with Leishmania infantum. The cell RI is reconstructed by using a modality of optical diffraction tomography techn[...]