Results 31 to 40 of about 42,189 (297)

Using quasi-guided modes for modeling the transfer behavior of bent dielectric slab waveguides [PDF]

open access: yesAdvances in Radio Science, 2010
The connection of two straight dielectric multimode slab waveguides by a circular bent waveguide is analyzed by means of quasi-guided modes. These modes correspond to the well known leaky modes, but own real eigenvalues, thus the mathematical ...
M. Stallein, B. Bandlow, R. Schuhmann
doaj   +1 more source

Spontaneous symmetry breaking of self-trapped and leaky modes in quasi-double-well potentials

open access: yes, 2016
We investigate competition between two phase transitions of the second kind induced by the self-attractive nonlinearity, viz., self-trapping of the leaky modes, and spontaneous symmetry breaking (SSB) of both fully trapped and leaky states.
Dror, Nir   +4 more
core   +1 more source

Birefringence analysis of multilayer leaky cladding optical fibre [PDF]

open access: yes, 2010
We analyse a multilayer leaky cladding (MLC) fibre using the finite element method and study the effect of the MLC on the bending loss and birefringence of two types of structures: (i) a circular core large-mode-area structure and (ii) an elliptical ...
A Kumar   +8 more
core   +4 more sources

Characterization of Anisotropic Leaky Mode Modulators for Holovideo [PDF]

open access: yesJournal of Visualized Experiments, 2016
Holovideo displays are based on light-bending spatial light modulators. One such spatial light modulator is the anisotropic leaky mode modulator. This modulator is particularly well suited for holographic video experimentation as it is relatively simple and inexpensive to fabricate.
Scott, Gneiting   +5 more
openaire   +2 more sources

Symbolic-Numeric Computation of the Eigenvalues and Eigenfunctions of the Leaky Modes in a Regular Homogeneous Open Waveguide

open access: yesMATEC Web of Conferences, 2018
In this paper the algorithm of finding eigenvalues and eigenfunctions for the leaky modes in a three-layer planar dielectric waveguide is considered.
Divakov Dmitriy   +2 more
doaj   +1 more source

Leaky interface phonons in AlGaAs/GaAs structures

open access: yes, 2000
A dispersion equation for the interface waves has been derived for the interface of two cubic crystals in the plane perpendicular to [001]. A reasonable hypothesis has been made about the total number of the acoustic modes.
Efros, A. L., Ponomarev, I. V.
core   +1 more source

Leaky Modes on a Grounded Wire-Medium Slab [PDF]

open access: yes2007 IEEE/MTT-S International Microwave Symposium, 2007
Leaky modes supported by a grounded wire-medium slab are studied here in detail for the first time. Such leaky modes are responsible for highly-directive radiation when the structure is excited by a dipole source. The analysis is carried out by means of a rigorous full-wave numerical approach based on the method-of-moments and also by using an ...
BURGHIGNOLI, Paolo   +4 more
openaire   +5 more sources

Constructing a partially transparent computational boundary for UPPE using leaky modes [PDF]

open access: yes, 2019
In this paper we introduce a method for creating a transparent computational boundary for the simulation of unidirectional propagation of optical beams and pulses using leaky modes. The key element of the method is the introduction of an artificial-index
Brändas E.   +2 more
core   +2 more sources

Leaky modes in multilayer uniaxial optical waveguides [PDF]

open access: yesApplied Optics, 1990
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 have been studied for the fundamental and first hybrid modes.
Torner Sabata, Lluís   +2 more
openaire   +5 more sources

Far-field probing of leaky topological states in all-dielectric metasurfaces

open access: yesNature Communications, 2018
Topological modes in photonics systems are not completely confined to the structure but can leak into free space. Here, Gorlach et al. exploit these leaky modes to probe the topological properties of a dielectric metasurface from far-field scattering ...
Maxim A. Gorlach   +8 more
doaj   +1 more source

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