Results 11 to 20 of about 5,107 (160)

A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain

open access: yesSensors, 2021
In this paper, an optical fiber composite Fabry-Perot interferometric (CFPI) sensor capable of simultaneous measurement of high temperature and strain is presented.
Ping Xia   +4 more
doaj   +1 more source

A Topological View on Optical and Phononic Fabry–Perot Microcavities through the Su–Schrieffer–Heeger Model

open access: yesApplied Sciences, 2018
Advances in nanofabrication technologies have enabled the study of acoustic wave phenomena in the technologically relevant GHz–THz range. First steps towards applying concepts from topology in nanophononics were made with the proposal of a new ...
Martin Esmann   +1 more
doaj   +1 more source

Realization of double Fano resonances with a InSb-doped Fabry-Perot cavity

open access: yesResults in Physics, 2022
In this paper, a one-dimensional photonic structure is proposed for the realization of double Fano resonance (DFaR), which can be tuned by an external magnetic field and temperature.
Tao Zhang, Dan Zhang, Hai-Feng Zhang
doaj   +1 more source

An arc tangent function demodulation method of fiber-optic Fabry-Perot high-temperature pressure sensor

open access: yesPhotonic Sensors, 2017
A new demodulation algorithm of the fiber-optic Fabry-Perot cavity length based on the phase generated carrier (PGC) is proposed in this paper, which can be applied in the high-temperature pressure sensor. This new algorithm based on arc tangent function
Qianyu Ren   +4 more
doaj   +1 more source

A Self-Referenced Refractive Index Sensor Based on Gold Nanoislands

open access: yesSensors, 2022
We report on a self-referenced refractive index optical sensor based on Au nanoislands. The device consists of a random distribution of Au nanoislands formed by dewetting on a planar SiO2/metal Fabry–Pérot cavity.
Carlos Angulo Barrios   +2 more
doaj   +1 more source

Enhancing the modulation depth of a dynamic terahertz metasurface by integrating into an asymmetric Fabry-Pérot cavity

open access: yesAIP Advances, 2018
The modulation capability of a terahertz dynamic metasurface was enhanced by integrating it with an asymmetric Fabry-Pérot cavity. The dynamic metasurface consists of split ring resonators combined with high frequency metal semiconductor metal varactors.
Gyejung Lee   +4 more
doaj   +1 more source

Optimal Design of an Hourglass in-Fiber Air Fabry-Perot Microcavity—Towards Spectral Characteristics and Strain Sensing Technology

open access: yesSensors, 2017
An hourglass in-fiber air microcavity Fabry-Perot interferometer is proposed in this paper, and its second reflecting surface of in-fiber microcavity is designed to be a concave reflector with the best curvature radius in order to improve the spectral ...
Qi Wang   +3 more
doaj   +1 more source

A Magnetic Field Sensor Based on a Magnetic Fluid-Filled FP-FBG Structure

open access: yesSensors, 2016
Based on the characteristic magnetic-controlled refractive index property, in this paper, a magnetic fluid is used as a sensitive medium to detect the magnetic field in the fiber optic Fabry-Perot (FP) cavity.
Ji Xia   +4 more
doaj   +1 more source

Pressure and Temperature Sensor Based on Fiber-Optic Fabry-Perot Interferometer by Phase Demodulation

open access: yesIEEE Access, 2019
A phase demodulation of dual-cavity fiber-optic Fabry-Perot interferometer based on open-cavity and silica-cavity was proposed and experimentally demonstrated for pressure and temperature sensing. In contrast to the commonly used wavelength demodulation,
Delin Zhao, Yongfeng Wu, Jing Wu
doaj   +1 more source

A 3D printed metallized Fabry–Perot cavity antenna with improved bandwidth and low side‐lobe levels

open access: yesElectronics Letters, 2021
A 3D printed metallized Fabry–Perot cavity antenna centred at 5.8 GHz is presented in this letter. A non‐uniform grid superstrate and a choke groove are employed in the Fabry–Perot cavity antenna to improve the input bandwidth and decrease the side lobes.
Ke Xu, Lin Zhou, Bing Zhang, Xing Chen
doaj   +1 more source

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