Results 41 to 50 of about 129,573 (339)

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

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

A Broadband Circularly Polarized Fabry-Perot Resonant Antenna Using A Single-Layered PRS for 5G MIMO Applications

open access: yesIEEE Access, 2019
This paper presents the design and the realization of broadband circularly polarized (CP) Fabry–Perot resonant antenna using a single superstrate for the fifth-generation (5G) wireless multiple-input-multiple-output (MIMO) applications.
Niamat Hussain   +3 more
semanticscholar   +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

Radio-frequency enabled comb in ring Quantum Cascade Lasers [PDF]

open access: yesEPJ Web of Conferences, 2023
Frequency combs (FC) generated by quantum cascade lasers (QCLs) are a promising tool for precision spectroscopy and gas sensing. Recently, ring QCLs have emerged as a new platform for generating FC with unique advantages over Fabry-Perot geometry.
Heckelmann Ina   +4 more
doaj   +1 more source

Discrete mode laser diodes with ultra narrow linewidth emission <3kHz [PDF]

open access: yes, 2008
Ex-facet, free-running ultra-low linewidth (
Anandarajah, Prince M.   +12 more
core   +1 more source

Ultrasensitive strain sensor based on Vernier- effect improved parallel structured fiber-optic Fabry-Perot interferometer.

open access: yesOptics Express, 2019
A novel parallel structured fiber-optic Fabry-Perot interferometer (FPI) based on Vernier-effect is theoretically proposed and experimentally demonstrated for ultrasensitive strain measurement.
Tong Nan   +7 more
semanticscholar   +1 more source

Refractive index tip sensor based on Fabry-Pérot cavities formed by a suspended core fibre [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2009
A Fabry-Perot refractometer based on the suspended core fibre is presented. The Fabry-Perot cavities are formed by a section of suspended core fibre between conventional single-mode fibres.
Frazão O.   +4 more
doaj   +1 more source

Pass-through Mach-Zehnder topologies for macroscopic quantum measurements

open access: yes, 2011
Several relatively small-scale experimental setups aimed on prototyping of future laser gravitational-wave detectors and testing of new methods of quantum measurements with macroscopic mechanical objects, are under development now.
Khalili, F. Ya.
core   +1 more source

Optical vernier technique for in-situ measurement of the length of long Fabry-Perot cavities [PDF]

open access: yes, 1998
We propose a method for in-situ measurement of the length of kilometer size Fabry-Perot cavities in laser gravitational wave detectors. The method is based on the vernier, which occurs naturally when the laser incident on the cavity has a sideband.
Abramovici A   +12 more
core   +2 more sources

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