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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 ; 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[...]![]()
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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[...]![]()
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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[...]![]()
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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. [...]![]()
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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[...]![]()
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Soto Rueda, Juan Manuel ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Optical Soc Amer | 2017-07-10Crucial benefits provided by partially coherent light microscopy such as improved spatial resolution, optical sectioning and speckle-noise suppression are exploited here to achieve 3D quantitative imaging: reconstruction of the object refractive[...]![]()
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Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Nature Publishing Group | 2016-09-20Laser traps provide contactless manipulation of plasmonic nanoparticles (NPs) boosting the development of numerous applications in science and technology. The known trapping configurations allow immobilizing and moving single NPs or assembling t[...]![]()
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Rodrigo Martín-Romo, José Augusto ; Caravaca Aguirre, Antonio Miguel ; Alieva, Tatiana Krasheninnikova ; Cristóbal Pérez, Gabriel ; Calvo Padilla, María Luisa | The Optical Society Of America | 2011-03-14Three-dimensional microparticle movements induced by laser beams with a funnel- and tubular pod-like structure, in the neighbourhood of the focal plane of an optical trapping setup, are experimentally studied. The funnel and pod beams constructe[...]![]()
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Rodrigo Martín-Romo, José Augusto ; Duadi, Hamootal ; Alieva, Tatiana Krasheninnikova ; Zalevsky, Zeev | The Optical Society Of America | 2010-01-18The gyrator transform is a useful tool for optical information processing applications. In this work we propose a multi-stage phase retrieval approach based on this operation as well as on the well-known Gerchberg-Saxton algorithm. It results in[...]![]()
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Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Cheben, Pavel ; Rodrigo Martín-Romo, José Augusto ; Janz, Siegfried ; Xu, Dan-Xia ; Delâge, André | Elsevier Science BV | 2007-02-01We propose a new type of arrayed waveguide grating (AWG) multiplexer/demultiplexer based on modified group refractive index. This device is composed by an array of straight and parallel waveguides of equal length and each waveguide consist of tw[...]![]()
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Martínez Matos, Óscar ; Cheben, Pavel ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto ; Monte Muñoz de la Peña, Francisco del | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2007We report recent results obtained with volume holographic gratings recorded in a new photopolymerisable glass modified with high refractive index species at molecular level. Various not previously observed performances have been achieved for dif[...]![]()
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Cámara, Alejandro ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | The Optical Society Of America | 2013-06-03Partially coherent light provides attractive benefits in imaging, beam shaping, free-space communications, random medium monitoring, among other applications. However, the experimental characterization of the spatial coherence is a difficult pro[...]![]()
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Soto Rueda, Juan Manuel ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Optical Society of America | 2018-01-01Quantitative label-free imaging is an important tool for the study of living microorganisms that, during the last decade, has attracted wide attention from the optical community. Optical diffraction tomography (ODT) is probably the most relevant[...]![]()
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Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | Optical Society of America | 2006-10On the basis of a matrix formalism, we analyze the paraxial optical systems composed by generalized lenses and fixed free-space intervals, suitable for orthosymplectic transformations in phase space. Flexible configurations to perform the attrac[...]![]()
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Cámara, Alejandro ; Alieva, Tatiana Krasheninnikova ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa | Society of Photo-Optical Instrumentation Engineers (SPIE) | 2011The application of partially coherent optical beams for imaging, free space communication, random medium analysis requires controlling its mutual intensity. This task can be done using the phase-space tomography method consisting on the reconstr[...]![]()
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Alieva, Tatiana Krasheninnikova ; Rodrigo Martín-Romo, José Augusto ; Cámara, A. ; Abramochkin, E. | Optical Society of America | 2013-11-01Stable and spiral coherent beams, which do not change the form of their intensity distribution apart from possible scaling and rotation during propagation and therefore possess self-healing properties, are widely applied in science and technolog[...]![]()
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Cámara, Alejandro ; Alieva, Tatiana Krasheninnikova ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa | Optical Society of America | 2009-06We propose a simple approach for the phase space tomography reconstruction of the Wigner distribution of paraxial optical beams separable in Cartesian coordinates. It is based on the measurements of the antisymmetric fractional Fourier transform[...]![]()
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Cámara, Alejandro ; Alieva, Tatiana Krasheninnikova ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa | The Optical Society Of America | 2011-07-11We show the adaptation of a multifunctional optical system consisting of two spatial light modulators for the optimal measurement of the Radon-Wigner transform of one-dimensional signals. The proposed Radon-Wigner display allows reconstructing t[...]![]()
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Martínez Matos, Óscar ; Calvo Padilla, María Luisa ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Hernández Garay, María de la Paz ; Cheben, Pavel ; Martí Panameño, Erwin José Armando | IEEE | 2009We present an overview of the main properties and the emerging implementations corresponding to a photopolymerizable glass modified with high refractive index species (HRIS) incorporated at molecular level. The study concerns to transmission and[...]![]()
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Martíenz Matos, Óscar ; Rodrigo Martín-Romo, José Augusto ; Calvo Padilla, María Luisa ; Cheben, Pavel | The Optical Society Of America | 2009-02-15Polarization properties of transmission volume holographic phase gratings recorded in a photopolymerizable glass modified with high refractive index species are reported. The gratings are recorded by the interference of two parallel s-polarized [...]![]()
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Rodrigo Martín-Romo, José Augusto ; Angulo Curto, María de las Mercedes ; Alieva, Tatiana Krasheninnikova | Optical Society of America | 2018-09-01A freestyle single-beam laser trap allows for multi-particle optical transport along arbitrary open or closed trajectories with independent control of the all-optical confinement and propulsion forces exerted over the particles. Here, exploiting[...]![]()
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Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | The Optical Society Of America | 2009-03-30A flexible optical system able to perform the fractional Fourier transform (FRFT) almost in real time is presented. In contrast to other FRFT setups the resulting transformation has no additional scaling and phase factors depending on the fracti[...]![]()
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Angulo Curto, María de las Mercedes ; Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | Optical Society of America | 2019-05-16The recently introduced concept of coherent polymorphic beam (PB), which is focused into a 2D light curve of arbitrary form with independently prescribed phase along it, is a fruitful generalization of the "perfect" ring vortex and opens up new [...]![]()
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Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova | The Optical Society Of America | 2014-06-02Partially coherent light provides promising advantages for imaging applications. In contrast to its completely coherent counterpart, it prevents image degradation due to speckle noise and decreases cross-talk among the imaged objects. These fact[...]