Results 21 to 30 of about 530,378 (278)

Propagation Losses of Slotted Photonic Crystal Waveguides

open access: yesIEEE Photonics Journal, 2012
We have fabricated and characterized a set of slotted photonic crystal (SPhC) waveguides in silicon-on-insulator (SOI) with a length of up to 300 $\mu\hbox{m}$ and slot widths ranging between 115 and 145 nm.
A. Di Falco   +5 more
doaj   +1 more source

Low-Loss Si3N4 TriPleX Optical Waveguides: Technology and Applications Overview

open access: yesIEEE Journal of Selected Topics in Quantum Electronics, 2018
An overview of the most recent developments and improvements to the low-loss TriPleX Si3N4 waveguide technology is presented in this paper. The TriPleX platform provides a suite of waveguide geometries (box, double stripe, symmetric single stripe, and ...
C. Roeloffzen   +27 more
semanticscholar   +1 more source

High Extinction Ratio and Broadband Silicon TE-Pass Polarizer Using Subwavelength Grating Index Engineering

open access: yesIEEE Photonics Journal, 2015
We propose and experimentally demonstrate a novel approach to implement a low-loss, broadband, and compact transverse electric (TE)-pass polarizer on a silicon-on-insulator platform.
Yule Xiong   +4 more
doaj   +1 more source

Reconfigurable Size‐Sorting of Micronanoparticles in Chalcogenide Waveguide Array

open access: yesAdvanced Photonics Research, 2022
Optical tweezers are considered as a revolution, allowing for manipulating particles ranging in scale from a few hundred nanometers (nm) to several micrometers (μm).
Meng Lian   +5 more
doaj   +1 more source

Elastic temporal waveguiding

open access: yesNew Journal of Physics, 2023
Abstract We provide a theoretical framework to mold time-modulated mechanical metamaterials with frequency conversion and wave-steering capabilities. To illustrate the concept, we initially focus on 1D lattices, whereby a sufficiently slow time-modulation of the stiffness is employed to convert the frequency content of impinging waves ...
Jonatha Santini, Emanuele Riva
openaire   +4 more sources

Bend Waveguides on Silicon Nanowire Optical Waveguide (SNOW)

open access: yesIEEE Photonics Journal, 2011
In a previous work, we reported a novel optical waveguide named silicon nanowire optical waveguide (SNOW), which consists of arrayed silicon nanowires acting like an effective-index medium.
M. Khorasaninejad, S. S. Saini
doaj   +1 more source

Dimensional Transformations of Guided-Mode Resonant Photonic Lattices

open access: yesIEEE Photonics Journal, 2020
Reflection spectra based on guided-mode resonance (GMR) are simulated and discussed with transformation between one-dimensional (1-D) and two-dimensional (2-D) photonic lattices by introducing intermediate structures consisting of vertically-stacked 1-D ...
Akari Watanabe   +5 more
doaj   +1 more source

Unidirectional reflectionless light propagation at exceptional points

open access: yesNanophotonics, 2017
In this paper, we provide a comprehensive review of unidirectional reflectionless light propagation in photonic devices at exceptional points (EPs).
Huang Yin   +4 more
doaj   +1 more source

Analytic Expressions for Orbital Angular Momentum Modal Crosstalk in a Slightly Elliptical Fiber

open access: yesIEEE Photonics Journal, 2020
Assuming weakly guiding approximation, we examine orbital angular momentum (OAM) mode mixing on account of ellipticity in a fiber and derive a complete set of analytic expressions for spatial crosstalk, using scalar perturbation theory that incorporates ...
Ramesh Bhandari
doaj   +1 more source

Second harmonic generation in nano-structured thin-film lithium niobate waveguides. [PDF]

open access: yesOptics Express, 2016
Integrated thin-film lithium niobate platform has recently emerged as a promising candidate for next-generation, high-efficiency wavelength conversion systems that allow dense packaging and mass-production.
Cheng Wang   +6 more
semanticscholar   +1 more source

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