Results 11 to 20 of about 89,156 (196)

Design of Ultra-Narrow Band Graphene Refractive Index Sensor. [PDF]

open access: yesSensors (Basel), 2022
Shangguan Q   +9 more
europepmc   +2 more sources

High Sensitivity and Wide Range Refractive Index Sensor Based on Surface Plasmon Resonance Photonic Crystal Fiber

open access: yesSensors, 2023
In order to detect the refractive index (RI) of high refractive index materials such as trichlorobenzene and aniline in the near-infrared and mid-infrared spectra and expand the detection range of the refractive index, a surface plasmon resonance (SPR ...
Fengmin Wang, Yong Wei, Yanhong Han
doaj   +1 more source

Optical Waveguide Refractive Index Sensor for Biochemical Sensing

open access: yesApplied Sciences, 2023
This study describes the basic principles of optical waveguide refractive index sensing and the various design structures of refractive index sensors. These waveguides generate different optical resonances, which cause changes in the sensing refractive ...
Cheng Peng   +7 more
doaj   +1 more source

Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods

open access: yesSensing and Bio-Sensing Research, 2022
In this research paper, we propose a refractive index (RI) based plasmonic nanosensor comprising of metal-insulator-metal (MIM) waveguide and octagonal resonator embedded with gold nanorods.
Nasir Muhammad Munim   +3 more
doaj   +1 more source

Ultra-Long Range Refractive Index Fiber Sensor

open access: yesFrontiers in Sensors, 2022
The dynamic range of optical fiber refractive index sensors is mainly determined by the refractive index (RI) of the sensor surface in contact with the sample under test.
Carmen E. Domínguez-Flores   +5 more
doaj   +1 more source

A macrobending singlemode fiber refractive index sensor for low refractive index liquids [PDF]

open access: yesPhotonics Letters of Poland, 2010
An all-fiber refractive index sensor with a simple configuration is proposed and investigated. The proposed fiber refractometer consists of a full-loop structure of bare high-bend loss singlemode fiber-1060XP, employing the well-known whispering gallery mode (WGM) effect induced by the evanescent wave excitation to measure the refractive index of an ...
Wang, Pengfei   +4 more
openaire   +4 more sources

Optimum design of the surface plasmon resonance sensor based on polymethyl methacrylate fiber

open access: yesPhysics Open, 2021
A novel type of polymethyl methacrylate (PMMA) fiber refractive index sensor based on surface plasmon resonance (SPR) is proposed in this work, which is applied to measure the refractive index of liquid.
Huanzhu Lv   +5 more
doaj   +1 more source

Refractive Index-Based Terahertz Sensor Using Graphene for Material Characterization

open access: yesSensors, 2021
In this paper, a graphene-based THz metamaterial has been designed and characterized for use in sensing various refractive index profiles. The proposed single-band THz sensor was constructed using a graphene-metal hybridized periodic metamaterial wherein
Aruna Veeraselvam   +5 more
doaj   +1 more source

Liquid-core low-refractive-index-contrast Bragg fiber sensor [PDF]

open access: yes, 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

open access: yesNonlinear 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

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