Results 111 to 120 of about 120,968 (283)

Application of Robust, Packaged Long-Period Fiber Grating for Strain Measurement

Micromachines, 2016
This paper proposes an optical fiber strain sensor based on packaged long-period fiber gratings (PLPFG) which is fabricated by the micro-electromechanical systems (MEMS) process and packaged with poly-dimethylsiloxane (PDMS) polymer materials.
Ke-Ping Ma, Chao-Wei Wu, Tso-Sheng Hsieh, Min-Yuan Hsieh, Chia-Chin Chiang   +4 more
doaj   +1 more source

A fuzzy neural network model to determine axial strain measured by a long-period fiber grating sensor

Measurement + Control, 2020
The paper reports an adaptive-network-based fuzzy inference system for the measurement of axial strain using long-period fiber grating sensors. The long-period fiber grating sensor supports optical resonances, which are sensitive to the change of axial ...
Xingliu Hu, Haifei Si, Hao Shen, Zhenzhong Yu   +3 more
doaj   +1 more source

Unifying first principle theoretical predictions and experimental measurements of size effects on thermal transport in SiGe alloys

, 2017
In this work, we demonstrate the correspondence between first principle calculations and experimental measurements of size effects on thermal transport in SiGe alloys. Transient thermal grating (TTG) is used to measure the effective thermal conductivity.
Chen, Gang, Chiloyan, Vazrik, Duncan, Ryan A., Fitzgerald, Eugene A., Huberman, Samuel, Jia, Roger, Maznev, Alexei A., Nelson, Keith A., Zeng, Lingping   +8 more
core   +1 more source

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song, Mohan Wang, Frank P. Payne, Patrick S. Salter, Tongyu Liu, Steve J. Elston, Martin J. Booth, Stephen M. Morris, Julian A. J. Fells   +8 more
wiley   +1 more source

Investigation of Grating-Assisted Trimodal Interferometer Biosensors Based on a Polymer Platform

Sensors, 2018
A grating-assisted trimodal interferometer biosensor is proposed and numerically analyzed. A long period grating coupler, for adjusting the power between the fundamental mode and the second higher order mode, is investigated, and is shown to act as a ...
Yuxin Liang, Mingshan Zhao, Zhenlin Wu, Geert Morthier   +3 more
doaj   +1 more source

Long Period Grating Mach-Zehnder Interferometer Based Immunosensor with Temperature and Bulk Refractive Index Compensation. [PDF]

Biosensors (Basel), 2022
Wu P, Liu L, Morgan SP, Correia R, Korposh S.   +4 more
europepmc   +1 more source

Development of High‐Performance Multilayer Monochromators

Advanced Optical Materials, EarlyView.
Detailed insights into the optical and multilayer design of Double Multilayer Monochromators (DMM) are presented and fully characterized, including key optimization strategies and solutions to fabrication challenges. By integrating in‐house Ion Beam Figuring and a high uniformity multilayer coating process, the developed DMMs achieve high reflectivity,
Wadwan Singhapong, Arindam Majhi, Wai Jue Tan, Vishal Dhamgaye, Riley Shurvinton, Paresh Pradhan, Igor Dolbnya, Lucia Alianelli, Chris Bowen, Alexander J. G. Lunt, Hongchang Wang, Kawal Sawhney   +11 more
wiley   +1 more source

Novel Corrugated Long Period Grating Surface Balloon-Shaped Heterocore-Structured Plastic Optical Fibre Sensor for Microalgal Bioethanol Production. [PDF]

Sensors (Basel), 2023
Memon SF, Wang R, Strunz B, Chowdhry BS, Pembroke JT, Lewis E.   +5 more
europepmc   +1 more source

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

Advanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash, Saddam Gafsi, Estevao Marques Dos Santos, Ivan Kravchenko, Judson D. Ryckman   +4 more
wiley   +1 more source

Refractive Index Sensors Based on Long-Period Grating in a Negative Curvature Hollow-Core Fiber. [PDF]

Sensors (Basel), 2021
Stawska HI, Popenda MA.
europepmc   +1 more source