Results 91 to 100 of about 4,980,334 (237)

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

Oscillistor-based force sensor

open access: yesJournal of Physics: Conference Series, 2020
Abstract The development of an oscillistor based force sensor with a frequency output is introduced. Sensor can operate in a wide temperature range from room to cryogenic. Experimental studies were carried out at temperatures of 77 and 295 K. Force sensor sensitivity is 0.9 kHz/N in the force range (0–10)N at temperature 295K. A decrease
Alexander I. Cheredov   +1 more
openaire   +1 more source

Screen-printable microscale hybrid device based on MXene and layered double hydroxide electrodes for powering force sensors

open access: yesNano Energy, 2018
Coplanar energy storage devices with interdigitated electrodes have attracted a significant amount of attention as micropower units for portable and flexible electronics, and self-powered systems. Herein, we propose a simple, cost-effective, and scalable
Shuaikai Xu   +5 more
semanticscholar   +1 more source

A dynamic tactile sensor on photoelastic effect

open access: yes, 2006
Certain photoelastic materials exhibit birefringent characteristics at a very low level of strain. This property of material may be suitable for dynamic or wave propagation studies, which can be exploited for designing tactile sensors.
Crowder, Richard, Dubey, Venketesh
core   +1 more source

Integrated optical force sensors using focusing photonic crystal arrays. [PDF]

open access: yesOptics Express, 2017
Mechanical oscillators are at the heart of many sensor applications. Recently several groups have developed oscillators that are probed optically, fabricated from high-stress silicon nitride films. They exhibit outstanding force sensitivities of a few aN/
Jing-kun Guo, R. Norte, Simon Groblacher
semanticscholar   +1 more source

Schottky-Barrier Photodiode Internal Quantum Efficiency Dependence on Nickel Silicide Film Thickness

open access: yesIEEE Photonics Journal, 2019
In this paper we show that the internal quantum efficiency of NiSi Schottky-barrier photodetectors can be significantly improved as the silicide film thickness is reduced close to its percolation threshold.
Joshua Duran, Andrew Sarangan
doaj   +1 more source

GelSight: High-Resolution Robot Tactile Sensors for Estimating Geometry and Force

open access: yesItalian National Conference on Sensors, 2017
Tactile sensing is an important perception mode for robots, but the existing tactile technologies have multiple limitations. What kind of tactile information robots need, and how to use the information, remain open questions.
Wenzhen Yuan, Siyuan Dong, E. Adelson
semanticscholar   +1 more source

Experimental Evidence for Coherent Perfect Absorption in Guided-Mode Resonant Silicon Films

open access: yesIEEE Photonics Journal, 2016
We experimentally verify a new class of coherent absorbers based on guided-mode resonance effects in periodic thin films. We design a silicon-based resonant absorber that is fabricated and tested near the 1300-nm wavelength.
A. L. Fannin   +5 more
doaj   +1 more source

Alternating current electromagnetic servo induction meter [PDF]

open access: yes, 1968
Electromagnetic device accurately indicates the responses of various sensors in high performance flight research aircraft to conditions encountered in flight.
Bogue, R. K.
core   +1 more source

A Framework for Mouse Emulation that Uses a Minimally Invasive Tongue Palate Control Device utilizing Resistopalatography [PDF]

open access: yes, 2013
The ability to interface fluently with a robust Human Input Device is a major challenge facing patients with severe levels of disability. This paper describes a new method of computer interaction utilizing Force Sensitive Resistor Array Technology ...
Horne, Robert   +2 more
core  

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