Results 11 to 20 of about 4,671,544 (234)

Highly compact refractive index sensor based on stripe waveguides for lab-on-a-chip sensing applications [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2016
In this paper we report the design and experimental realisation of a novel refractive index sensor based on coupling between three nanoscale stripe waveguides. The sensor is highly compact and designed to operate at a single wavelength.
Chamanei Perera   +5 more
doaj   +3 more sources

Composite material process monitoring using optical fibre grating sensors [PDF]

open access: yes, 2008
In this thesis a long period grating (LPG) based sensor is investigated as a possible alternative to current process monitoring sensors used in the manufacture of composites to monitor cure. An LPG is demonstrated as a means of monitoring the cure of a
Buggy, Stephen J.
core   +7 more sources

Optical waveguide analysis using transmission lines [PDF]

open access: yes
Optical fibres have been used as a key medium for telecommunication and networking for more than two decades because in principle they offer sufficient transmission capacity, reaching total rates as high as Tbits/s per fibre.
Qian, Xin
core   +9 more sources

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

Design and process development of a photonic crystal polymer biosensor for point of care diagnostics [PDF]

open access: yes, 2011
In this work, we report advances in the fabrication and anticipated performance of a polymer biosensor photonic chip developed in the European Union project P3SENS (FP7-ICT4-248304).
Johnson, N.   +3 more
core   +2 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

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

Photonic crystal fiber half-taper probe based refractometer [PDF]

open access: yes, 2014
A compact singlemode - photonic crystal fiber - singlemode fiber tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving technique is utilised to provide a clean-cut fiber tip which is then coated by a layer of gold to ...
Bo, Lin   +8 more
core   +1 more source

A long period grating based directional flow sensor [PDF]

open access: yes, 2008
A chirped long period grating (LPG) is used as a directional flow sensor by monitoring the change in the transmission spectrum upon immersion in an oil of refractive index higher than that of the fibre cladding. The change in profile of an attenuation
Stephen J. Buggy   +5 more
core   +1 more source

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