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Evaluation of a liquid crystal based polarization modulator for a space mission thermal environment
(Elsevier B.V., 2017-10-15)
The Multi Element Telescope for Imaging and Spectroscopy (METIS) is one of the remote sensing instruments to be onboard the future NASA/ESA Solar Orbiter mission. The science nominal mission orbit will take the spacecraft ...
Improvement of the signal-to-noise ratio in interferometry using multi-frame high-dynamic-range and normalization algorithms
(ELSEVIER SCIENCE BV, 2012-01-01)
Using both high dynamic range (HDR) and normalization methodologies, we show a method to improve the fringe pattern contrast in interferometric measurements normally used for phase recovering. In a simulated interferogram ...
Dynamic tracking with simultaneous edge enhancement
(ELSEVIER GMBH, URBAN & FISCHER VERLAG, 2017-01-01)
Due to the isotropic edge enhancement, the vortex phase filters are of commonly used in spatial filtering. In general, these filters employ a spiral phase mask on the Fourier plane, the square modulo from this convolution ...
Chromatic aberration compensation in numerical reconstruction of digital holograms by Fresnel-Bluestein propagation
(OSA - The Optical Society, 2017-12-15)
In this Letter, we present a method for chromatic compensation in numerical reconstruction of digitally recorded holograms based on Fresnel-Bluestein propagation. The proposed technique is applied to correct the chromatic ...
Plataforma de simulación de aberraciones ópticas vía implementación de las características de un SLM y reconstrucción de fase usando algoritmos basados en los sensores de Hartmann-Shack
(2015-10-01)
Dada la importancia que hoy día presenta dentro del ámbito de la óptica, la implementación y conocimiento de dispositivos capaces tanto de generar aberraciones ópticas bien caracterizadas como de sensarlas, en este artículo ...
Multi-plane phase retrieval methods to recover free-aberrations object complex field via SLM
(Sociedad Espanola de Optica, 2017-12-01)
This paper explains two iterative phase recovery methods where the goal of each one is different. The Phase Diversity method is used to recover the wavefront aberrations in optical incoherent imaging systems when an extended ...
Reconstrucción del frente de onda de un espejo deformado mecanicamente a partir de la descomposición de los polinomios de Zernike y series de Fourier
(2014-12-01)
Éste trabajo presenta la comparaciónrealizada entre la descomposición en polinomios de Zernike y series de Fourierde un frente de onda aberrado
Optimización de monturas mecánicas de espejos para condiciones específicas a partir de una reconstrucción utilizando polinomios de zernike
(2014-12-01)
En este trabajo se muestra una solución optimizada al diseño mecánico de una montura, partiendo de condiciones termo-elásticas determinadas.
Diffraction Efficiency Adjustment to Record High Quality Color Holograms.
(Fondo Editorial Universidad EAFIT, 2014-06-04)
In this article, we report the experimental values of required exposure to obtain the maximum diffraction efficiencies in PFG-03C Slavich film on independent recordings and RGB multiplexed recordings. Also, color adjustments ...
Obtención de estructuras de relieve en materiales de registro de haluros de plata
(Sedoptica, 2013-09-19)
Diffraction transmission gratings were recorded in AGFA-8E75 film, chemically treated under processes with D-19 + potassium ferrocyanide and a chemical processing technique proposed for PE-2 film to obtain embossed stripes. ...
