Results 11 to 20 of about 360,759 (347)

Second-Harmonic Generation in Suspended AlGaAs Waveguides: A Comparative Study

open access: yesMicromachines, 2020
Due to adjustable modal birefringence, suspended AlGaAs optical waveguides with submicron transverse sections can support phase-matched frequency mixing in the whole material transparency range, even close to the material bandgap, by tuning the width-to ...
Iännis Roland   +6 more
doaj   +1 more source

COMPACT POLARIZATION PLANE ROTATOR AT A DEFINED ANGLE IN THE SQUARE WAVEGUIDE [PDF]

open access: yesРадиофизика и электроника, 2017
We have studied the possibility of designing compact polarization plane rotator electromagnetic waves on the basis of the structures with dihedral symmetry, and formed by 5-resonant slotted apertures with rectangular irises. The proposed structure allows
D. Yu. Kulik   +2 more
doaj   +1 more source

The overlap is not a waveguide [PDF]

open access: yesPhysics Letters B, 1995
Golterman and Shamir falsely claim that a waveguide model modified by adding many charged bosonic spinors, in the limit of an infinite number of matter fields, becomes identical to the overlap if in the target theory every fermion appears in four copies.
Rajamani Narayanan, Herbert Neuberger
openaire   +3 more sources

Undulator radiation in a waveguide [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008
67 pages, 14 ...
Geloni, G.   +3 more
openaire   +8 more sources

Features of planar metal/dielectric nanowaveguides

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2020
Results of analysis focused on dielectric/metal/dielectric and metal/dielectric/ metal symmetric nanowaveguides have been presented. The waveguides based on gold, silver and aluminum have been studied.
V.M. Fitio   +3 more
doaj   +1 more source

Microwave Components Realized by Additive Manufacturing Techniques [PDF]

open access: yesRadioengineering, 2020
This paper presents an overview of the use of additive manufacturing (AM) technologies for the implementation of microwave components. Two major technological solutions, based on the AM of plastic materials, are discussed: in the former case, the AM ...
C. Tomassoni, M. Bozzi
doaj  

Lithographically Fabricated Magnifying Maxwell Fisheye Lenses

open access: yesPhotonics, 2016
Recently suggested magnifying Maxwell fisheye lenses, which are made of two half-lenses of different radii, have been fabricated and characterized.
Vera Smolyaninova   +5 more
doaj   +1 more source

Silicon Meets Graphene for a New Family of Near-Infrared Schottky Photodetectors

open access: yesApplied Sciences, 2019
In recent years, graphene has attracted much interest due to its unique properties of flexibility, strong light-matter interaction, high carrier mobility and broadband absorption.
Maurizio Casalino
doaj   +1 more source

Effective Light Beam Modulation by Chirp IDT on a Suspended LiNbO3 Membrane for 3D Holographic Displays

open access: yesSensors, 2020
An acousto-optic (AO) holographic display unit based on a suspended waveguide membrane was developed. The AO unit consists of a wide bandwidth chirp interdigital transducer (IDT) on a 20 µm thick suspended crystalline 128° YX LiNbO3 membrane, a
Yongbeom Lee, Keekeun Lee
doaj   +1 more source

Magnetic-Optic Effect-Based Topological State: Realization and Application

open access: yesFrontiers in Materials, 2022
The topological state in photonics was first realized based on the magnetic-optic (MO) effect and developed rapidly in recent years. This review summarizes various topological states.
Xinyue Wang   +10 more
doaj   +1 more source

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