Results 31 to 40 of about 6,438 (244)

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Investigation of Hybrid Silicon-Nitride/Polymer Waveguides for Second-Harmonic Generation

open access: yesIEEE Photonics Journal, 2019
We propose a hybrid silicon-nitride (Si3N4 or SiN for short)/nonlinear polymer waveguide to achieve second-harmonic generation of an input 1550 nm signal by modal phase-matching between zero-order spatial mode at 1550 nm and second ...
Subrata Das   +4 more
doaj   +1 more source

Fiber‐Based Wearable Electronics as Adaptive Biointerfaces for Healthcare Applications

open access: yesAdvanced Functional Materials, EarlyView.
Fiber‐based wearable electronics have been extensively studied as adaptive healthcare biointerfaces. In this review, we classify and introduce fiber‐based systems according to biointerface design, conductive materials, transduction mechanisms, and healthcare applications, and provide a perspective on their translation toward reliable, continuous ...
Sangwoo Hong   +5 more
wiley   +1 more source

Fabrication and measurement of optical waveguide sensor based on localized surface plasmon resonance

open access: yesMicro and Nano Systems Letters, 2019
We propose a novel localized surface plasmon resonance (LSPR) sensor system based on polymer material. The proposed LSPR system consists of the incident medium with low-loss polymer waveguide and the chemically immobilized plasmonic nanoparticles for on ...
Hyeong-Min Kim   +2 more
doaj   +1 more source

Low-loss, high-bandwidth fiber-to-chip coupling using capped adiabatic tapered fibers

open access: yesAPL Photonics, 2020
We demonstrate adiabatically tapered fibers terminating in sub-micron tips that are clad with a higher-index material for coupling to an on-chip waveguide. This cladding enables coupling to a high-index waveguide without losing light to the buried oxide.
Saeed Khan   +5 more
doaj   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

open access: yesAdvanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei   +3 more
wiley   +1 more source

Trimodal Waveguide Demonstration and Its Implementation as a High Order Mode Interferometer for Sensing Application

open access: yesSensors, 2019
This work implements and demonstrates an interferometric transducer based on a trimodal optical waveguide concept. The readout signal is generated from the interference between the fundamental and second-order modes propagating on a straight polymer ...
Jhonattan C. Ramirez   +3 more
doaj   +1 more source

Polymer Waveguide Amplifiers

open access: yes, 2020
Engineering and Physical Sciences Research Council (EPSRC)
openaire   +2 more sources

Graphene-based polymer waveguide polarizer

open access: yesOptics Express, 2012
Planar-lightwave-circuit (PLC)-type graphene polarizers are fabricated by using a low loss optical polymer waveguide. The optical characteristics are investigated at a wavelength of 1.31 µm. By interface engineering with a UV-curable perfluorinated acrylate polymer resin, the graphene's electrical properties are tuned to support a transverse-magnetic ...
Kim, Jin Tae, Choi, Choon-Gi
openaire   +3 more sources

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