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We analyze the far-field intensity distribution of binary phase gratings whose strips present certain randomness in their height. A statistical analysis based on the mutual coherence function is done in the plane just after the grating. Then, th[...]texto impreso
Millán García Varela, María Sagrario ; Vega Lerin, Fidel ; Poyales Galán, Francisco ; Garzón Jiménez, Nuria | OSA Publishing | 2019We describe a psychophysical method and a simple setup – an autorefractor with a Scheiner disc, sequentially illuminated with red and blue lights – for the clinical assessment of the longitudinal chromatic aberration (LCA) in phakic and pseudoph[...]texto impreso
Armengol Cebrian, Jesús ; Garzón Jiménez, Nuria ; Vega Lerin, Fidel ; Altemir Gómez, Irene ; Millán García Varela, María Sagrario | OSA Publishing | 2020This article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their ability to predict the visual quality of patients implanted with multifocal intraocular[...]texto impreso
Elshorbagy, Mahmoud Hamdy Mohamed ; Cuadrado Conde, Alexander ; Alda, Javier | OSA Publishing | 2017A metallic nanostructured array that scatters radiation toward a thin metallic layer generates surface plasmon resonances for normally incident light. The location of the minimum of the spectral reflectivity serves to detect changes in the index[...]texto impreso
Cuadrado Conde, Alexander ; Sánchez Brea, Luis Miguel ; Torcal Milla, Francisco José ; Quiroga Mellado, Juan Antonio ; Gómez Pedrero, José Antonio | OSA Publishing | 2019-05-01We present in this work a numerical model for characterizing the scattering properties of the human lens. After analyzing the scattering properties of two main scattering particles actually described in the literature through FEM (finite element[...]texto impreso
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[...]texto impreso
We demonstrate the capabilities of principal component analysis (PCA) for studying the results of finite-difference time-domain (FDTD) algorithms in simulating photonic crystal microcavities. The spatial-temporal structures provided by PCA are r[...]texto impreso
Hoyo Muñoz, Jesús del ; Sánchez Brea, Luis Miguel ; Gómez Pedrero, José Antonio | OSA Publishing | 2019We present a new method for calibrating a 4 stepper-motors polarimeter. This method does not require perfect polarizing elements or well-known samples. Experimental results have been obtained with errors lower than 0.1%.texto impreso
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[...]texto impreso
We study theoretically the effect of a new type of blocklike positional disorder on the effective electromagnetic properties of one-dimensional chains of resonant, high-permittivity dielectric particles, where particles are arranged into perfect[...]
