Results 31 to 40 of about 92,601 (341)
Liquid-core low-refractive-index-contrast Bragg fiber sensor [PDF]
, 2011 We propose and experimentally demonstrate a low-refractive-index-contrast hollow-core Bragg fiber sensor for liquid analyte refractive index detection. The sensor operates using a resonant sensing principle- when the refractive index of a liquid analyte ...
Hang Qu +2 more
core +1 more source
Some Advanced Fiber-Optical Amplitude Modulated Reflection Displacement and Refractive Index Sensors
Nonlinear Analysis, 2007 Some advanced fiber-optic amplitude modulated reflection displacement sensors and refractive index sensors have been developed. An improved three-fiber displacement sensor has been investigated as a refractive index sensor by computer simulations in a ...
V. Kleiza, J. Verkelis
doaj +1 more source
Optimisation of distributed feedback laser biosensors [PDF]
, 2007 A new integrated optical sensor chip is proposed, based on a modified distributed- feedback (DFB) semiconductor laser. The semiconductor layers of different refractive indices that comprise a laser form the basis of a waveguide sensor, where changes in ...
Coote, J, Reddy, Subrayal M, Sweeney, SJ
core +1 more source
Sensors, 2017 In this paper; the surface plasmon resonance (SPR) sensor with a porous silica film was studied. The effect of the thickness and porosity of the porous silica film on the performance of the sensor was analyzed.
Qing-Qing Meng +5 more
doaj +1 more source
The realization of an integrated Mach-Zehnder waveguide immunosensor in silicon technology [PDF]
, 1997 We describe the realization of a symmetric integrated channel waveguide Mach-Zehnder sensor which uses the evanescent field to detect small refractive-index changes (¿nmin ¿ 1 × 10¿4) near the guiding-layer surface.
Brugman, A.M. +5 more
core +2 more sources
Sensors, 2016 A refractive index sensor based on metal-insulator-metal (MIM) waveguides coupled double rectangular cavities is proposed and investigated numerically using the finite element method (FEM).
Zhidong Zhang +4 more
doaj +1 more source
Sensors, 2016 A refractive index sensor based on dual-core photonic crystal fiber (PCF) with hexagonal lattice is proposed. The effects of geometrical parameters of the PCF on performances of the sensor are investigated by using the finite element method (FEM).
Haiyang Wang +4 more
doaj +1 more source
Fuel classification and adulteration detection using a highly sensitive plasmonic sensor
Sensing and Bio-Sensing Research, 2023 In this paper, a plasmonic refractive index sensor is proposed based on a square ring-type resonator with gratings, which is coupled with a straight metal-insulator-metal (MIM) waveguide that has two triangular stubs.
Rummanur Rahad +3 more
doaj +1 more source
Highly sensitive fiber Bragg grating refractive index sensors [PDF]
, 2005 We combine fiber Bragg grating (FBG) technology with a wet chemical etch-erosion procedure and demonstrate two types of refractive index sensors using single-mode optical fibers. The first index sensor device is an etch-eroded single FBG with a radius of
Huang, Yanyi +4 more
core +1 more source
A multimode fiber refractive index sensor [PDF]
2016 IEEE SENSORS, 2016 We present a simple refractive index sensor based on multimode fibers realized by stripping three different lengths of cladding. We theoretically explain and experimentally validate three mechanisms occurring in the multimode fiber for sensing surrounding refractive index.
Apriyanto, Haris +6 more
openaire +2 more sources