Results 41 to 50 of about 76,274 (259)

Two-Parameter Elliptical Fitting Method for Short-Cavity Fiber Fabry–Perot Sensor Interrogation

open access: yesSensors, 2018
To solve the cavity interrogation problem of short cavity fiber Fabry–Perot sensors in white light spectral interrogation with amplified spontaneous emissions (ASEs) as the white light sources, a data processing method, using an improved elliptical
Xiongxing Zhang   +5 more
doaj   +1 more source

An investigation of chirped fibre Bragg gratings Fabry-Perot interferometer for sensing applications [PDF]

open access: yes, 2005
Fibre interferometer configurations such as the Michelson and Fabry-Perot (FP) have been formed using uniformed and chirped Fibre Bragg Gratings (FBG) acting as partial reflectors. As well as increasing the dynamic range of the interferometer, chirped
Cheung, Chi Shing
core   +4 more sources

Resonance-enhanced spectral funneling in Fabry–Perot resonators with a temporal boundary mirror

open access: yesNanophotonics, 2022
A temporal boundary refers to a specific time at which the properties of an optical medium are abruptly changed. When light interacts with the temporal boundary, its spectral content can be redistributed due to the breaking of continuous time ...
Lee Kanghee   +6 more
doaj   +1 more source

One mode-model in nanostructures with inclined sidewalls applied to nano Fabry-Perot structures [PDF]

open access: yesEPJ Web of Conferences, 2023
Metasurfaces are engineered with specific shapes and sizes to interact with light in a unique way. By manipulating the design of the metasurface, it is possible to control optical properties of the surface such as its thermal emissivity.
Lackner Jules   +3 more
doaj   +1 more source

Analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry-Perot interferometer [PDF]

open access: yes, 2007
Several designs of infrared sensors use a Fabry-Perot Interferometer (FPI) to modulate the incident light. In this work we analyse the particular case where the FPI fringes are matched with very well defined ro-vibrational absorption lines of a target ...
Rutt, Harvey N.   +1 more
core   +1 more source

Fabry–Perot Effect Suppression in Gas Cells Used in THz Absorption Spectrometers. Experimental Verification

open access: yesSensors
A standard measuring gas cell used in absorption spectrometers is a cylinder enclosed by two transparent windows. The Fabry–Perot effects caused by multiple reflections of terahertz waves between these windows produce significant variations in the ...
George K. Raspopin   +5 more
doaj   +1 more source

Increased flow rate of hyperpolarized aqueous solution for dynamic nuclear polarization-enhanced magnetic resonance imaging achieved by an open Fabry–Pérot type microwave resonator [PDF]

open access: yesMagnetic Resonance, 2020
A continuous flow dynamic nuclear polarization (DNP) employing the Overhauser effect at ambient temperatures can be used among other methods to increase sensitivity of magnetic resonance imaging (MRI).
A. Fedotov   +5 more
doaj   +1 more source

Ultra-narrow (sub-MHz) linewidth emission from discrete mode laser diodes [PDF]

open access: yes, 2007
A class of laser which exhibits ultra-narrow sub MHz linewidth emission necessary for numerous applications in optical communications and sensors is described.
Kelly, Brian   +15 more
core   +1 more source

Fabry–Perot Antenna Based on an Electrically Tunable Slot Antenna and a Two-Layer Frequency-Selective Surface

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. One of the directions in Fabry–Perot antenna design consists in increasing its operation frequency range. In the present work, we set out to develop a Fabry–Perot antenna with a smooth gain pattern across a wide frequency range. To that end,
A. M. Sosunov   +4 more
doaj   +1 more source

A RECONFIGURABLE METASURFACE IN THE FORM OF A FABRY-PÉROT RESONATOR, INVOLVING SEMI-TRANSPARENT MIRRORS AND A NONLINEAR DIELECTRIC INSERT [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. The paper is aimed at suggesting ways for implementing electromagnetic devices that would involve a nonlinear dielectric inside the structure for concentrating electromagnetic field within it at relatively low intensities of the ...
Ye. O. Antonenko   +3 more
doaj   +1 more source

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