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Modal Analysis for Single-Mode Waveguides of Silicon on Sapphire (SOS) at Infrared Region Using Finite Element Method (FEM) [PDF]

open access: yesJournal of Applied Sciences and Nanotechnology, 2022
One of the recommended platforms for waveguide generation in the infrared region is silicon-on-sapphire (SOS). This paper proposes a modal of the optical waveguide of silicon on a sapphire from  ), using FEM (finite-element method) solver simulation ...
Yadgar Shwan
doaj   +1 more source

In-Situ Study of Dynamics of Refractive Index Changes in Silicon Devices Induced by UV-light Irradiation

open access: yesIEEE Photonics Journal, 2022
Silicon photonics has been studied in various areas by providing small-footprint, high-performance, and mass-producible optoelectronic components integrated on a chip.
Jiaqi Wang   +8 more
doaj   +1 more source

Normal modes of a waveguide as eigenvectors of a self-adjoint operator pencil

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2021
A waveguide with a constant, simply connected section S is considered under the condition that the substance filling the waveguide is characterized by permittivity and permeability that vary smoothly over the section S, but are constant along the ...
Mikhail D. Malykh
doaj   +1 more source

Amplification-free nucleic acid detection with a fluorescence-based waveguide biosensor

open access: yesFrontiers in Sensors, 2022
Early detection of pathogens using nucleic acids in clinical samples often requires sensitivity at the single-copy level, which currently necessitates time-consuming and expensive nucleic acid amplification. Here, we describe 1) a redesigned flow cell in
Philip A. Kocheril   +3 more
doaj   +1 more source

Parasitic High Q-Factor Open-Box Modes With 3-D Printed Dielectric-Filled Metal Waveguides

open access: yesIEEE Access, 2021
High Q-factor open-box mode resonances have been found in the microwave measurements of several 3-D printed dielectric-filled metal-pipe rectangular waveguides (MPRWGs).
Attique Dawood, Stepan Lucyszyn
doaj   +1 more source

Low-Loss Ultrasound Transmission Through Waveguide From Double Parabolic Reflectors (DPLUS) for Thermal Ablation

open access: yesIEEE Access, 2022
In this paper, to advance acoustic waveguide transducers towards practical thermal ablation applications, we studied DPLUS (double parabolic reflectors wave-guided ultrasonic transducer) with a 1-m long (0.6-mm radius) and low-loss fused quartz thin ...
Kang Chen   +4 more
doaj   +1 more source

COMPACT POLARIZATION ROTATORS BASED ON THE DIAPHRAGMS WITH RECTANGULAR APERTURES [PDF]

open access: yesРадиофизика и электроника, 2015
The requirement of being compact is obvious for the designs of modern communication systems of civil and military purposes. The ultimate performances of perspective compact polarization rotators are examined in the paper.
D. Yu. Кulik   +3 more
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

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

Control of Light Diffusion in a Disordered Photonic Waveguide [PDF]

open access: yes, 2014
We control the diffusion of light in a disordered photonic waveguide by modulating the waveguide geometry. In a single waveguide of varying cross-section, the diffusion coefficient changes spatially in two dimensions due to localization effects.
Alexey Yamilov   +5 more
core   +3 more sources

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