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Leaky modes in multilayer anisotropic optical waveguides
(1990)
Article.
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Article.
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The propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle ...
Self-homodyne detection of the light orbital angular momentum
(2012-07-15)
Article.
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Article.
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A simple optical system for the self-homodyne detection of the orbital angular momentum (OAM) carried by optical
beams is introduced. We propose two different schemes based on the use of optical hybrids, which could detect ...
A simple method to generate optical beams with a screw phase dislocation
(1997-09)
Article.
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Article.
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In this work, it is shown experimentally that optical beams that contain a phase dislocation can be generated with a laser oscillating in the fundamental mode and a cylindrical-lens mode converter.
Leaky modes in multilayer uniaxial optical waveguides
(1990-04)
Article.
Accés obert
Article.
Accés obert
The propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle ...
Applicability of the.Lorentzian peak method to analyze leaky and lossy optical waveguides
(1991-06)
Article.
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Article.
Accés obert
Several conclusions concerning the applicability of the Lorentzian peak method to compute the complex propagation constant of leaky and lossy waveguide modes are established.
Digital coherent receiver for orbital angular momentum demultiplexing
(2013-01-15)
Article.
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Article.
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We put forward a type of receiver for coherent detection of the photon orbital angular momentum (OAM). A coherent array receiver, consisting of multiple subapertures, with each subaperture coupled to a single-mode fiber, ...
Experimental detection of transverse particle movement with structured light
(MACMILLAN PUBLISHERS LIMITED, 2013-10-02)
Article.
Accés obert
Article.
Accés obert
One procedure widely used to detect the velocity of a moving object is by using the Doppler effect. This is the perceived change in frequency of a wave caused by the relative motion between the emitter and the detector, ...
Normalized parameters for Y-branch optical waveguides
(1991-05-01)
Article.
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Article.
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Y-branch optical waveguides are analyzed in terms of normalized parameters by means of the usual modal analysis. With these parameters the number of variables of the problem is reduced, and universal plots for the mode ...
The curious arithmetic of optical vortices
(2000-08-15)
Article.
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Article.
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The superposition of noncoaxial light beams containing screw wave-front dislocations is shown to create light patterns with a richer vortex content than that given by the arithmetic of the topological charges of the ...
Guided to leaky mode transition in uniaxial optical slab waveguides
(1993-10)
Article.
Accés obert
Article.
Accés obert
The guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbO/sub 3/, or LiTaO/sub 3/, is analyzed. Two different guided-to-leaky transitions have been identified, namely the ...