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Application software for teaching the polarization ellipse
(Sociedad Espanola de Optica, 2018-09-01)
This paper describes the development of a computational application that calculates the configuration of a polarization state generator, according to the parameters of a desired polarization ellipse. The most general way ...
Vortex metrology using Fourier analysis techniques: vortex networks correlation fringes.
(OPTICAL SOC AMER, 2012-10-20)
In this work, we introduce an alternative method of analysis in vortex metrology based on the application of the Fourier optics techniques. The first part of the procedure is conducted as is usual in vortex metrology for ...
Three-dimensional surface contouring of macroscopic objects by means of phase-difference images
(OPTICAL SOC AMER, 2006-09-01)
We report a technique to determine the 3D contour of objects with dimensions of at least 4 orders of magnitude larger than the illumination optical wavelength. Our proposal is based on the numerical reconstruction of the ...
New multiple aperture arrangements for speckle photography
(Elsevier B.V, 2000-08-01)
Abstract. We propose a multiple exposure specklegram by using an optical system whose multiple aperture pupil changes between exposures. In particular, we analyze experimentally two arrangements and we show that it is ...
Multiple rotation assessment through isothetic fringes in speckle photography
(OSA, 2007-04-20)
The use of different pupils for storing each speckled image in speckle photography is employed to determine multiple in-plane rotations. The method consists of recording a four exposure specklegram where the rotations are ...
Multiple-aperture speckle method applied to local displacement measurements
(ELSEVIER SCIENCE BV, 2007-06-01)
The goal of this work is to analyze the measurement capability of the modified speckle photography technique that uses different multiple aperture pupils in a multiple exposure scheme. In particular, the rotation case is ...
Phase stepping in Lau interferometry
(Elsevier, 1999-06-15)
The implementation of phase shifting interferometry to analyze the Lau interferometric fringe patterns is proposed. The fundamentals of this application are theoretically discussed and the basis of the phase map interpretation ...
EMIR optomechanics
(SPIE-INT SOC OPTICAL ENGINEERING, 2004-09-01)
EMIR is a NIR multiobject spectrograph with imaging capabilities to be used at the GTC. A general description of instrument performances, as well as the updated optical and mechanical layouts, can be found elsewhere on ...
Three-dimensional contouring with digital holography
(Sociedad Colombiana De Física, 2005-04-28)
We report on a technique to determine the 3D contour of objects with dimensions of at least four orders of magnitude larger than the illumination optical wavelength. Our proposal is based on the numerical reconstruction ...
Improvement of the signal-to-noise ratio in digital holography
(Sociedad Mexicana de Física, 2005-02)
A fundamental problem in optical and digital holography is the presence of speckle noise in the reconstruction process, which essentially diminishes the signal to noise ratio (SNR). For many applications, that reduction ...
