Results 21 to 30 of about 82,349 (302)

All-optical modulation in a CMOS-compatible amorphous silicon-based device [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
Active silicon photonic devices, which dynamically control the flow of light, have received significant attention for their use in on-chip optical networks.
Rao S., D’Addio C., Della Corte F. G.
doaj   +1 more source

Coupled-Resonator Optical Waveguides and Multiplexed Solitons [PDF]

open access: yes, 2003
Whether over micron-long or kilometer-long distances, periodic phenomena can strongly affect both the propagation and the confinement of optical pulses.
Mookherjea, Shayan
core   +1 more source

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

TE/TM-Pass Polarizer Based on Lithium Niobate on Insulator Ridge Waveguide

open access: yesIEEE Photonics Journal, 2013
We propose a TE/TM-pass polarizer based on a shallow X-cut lithium niobate-on-insulator (LNOI) ridge waveguide. In shallow X-cut LNOI ridge waveguides, the leaky mode is interchanged between TE and TM polarization waves depending on the ridge waveguide ...
Emi Saitoh   +3 more
doaj   +1 more source

Understanding the rich physics of light propagation in slow photonic crystal waveguides [PDF]

open access: yes, 2010
Selected papers. Held as part of SPIE Photonics West 2010.We study propagation losses in slow light photonic crystal waveguides and show that dispersion engineering can reduce the loss.
Lalanne, Phillippe   +35 more
core   +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

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

Indium tin oxide overlayered waveguides for sensor applications [PDF]

open access: yes, 1997
The use of indium tin oxide (ITO) thin films as electrodes for integrated optical electrochemical sensor devices is discussed. The effect of various thicknesses of ITO overlayers exhibiting low resistivity and high transparency on potassium ion-exchanged
Wilkinson, James S.   +6 more
core   +1 more source

Sub‐THz Phase Shifters Enabled by Photoconductive Single‐Walled Carbon Nanotube Layers

open access: yesAdvanced Photonics Research, 2023
Materials with tunable dielectric properties are highly relevant for terahertz (THz) applications. Herein, the tuning of the dielectric response of single‐walled carbon nanotube layers by light illumination is studied for applications to THz phase ...
Serguei Smirnov   +8 more
doaj   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

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