Results 131 to 140 of about 129,573 (339)
Photon recycling in Fabry-Perot micro-cavities based on Si$_3$N$_4$ waveguides
We present a numerical analysis and preliminary experimental results on one-dimensional Fabry-Perot micro-cavities in Si$_3$N$_4$ waveguides. The Fabry-Perot micro-cavities are formed by two distributed Bragg reflectors separated by a straight portion of
A. Lui +20 more
core +1 more source
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida +3 more
wiley +1 more source
Rotman Lens-Fed Fabry-Perot Resonator Antennas for Generating Converged Multi-Mode OAM Beams
In this paper, we present a Rotman lens-fed Fabry-Perot resonator antennas (FPRA) for generating multi-mode OAM beams with low beam divergence. The Rotman lens works as a beamforming network in the FPRA for the multi-mode OAM operation, significantly ...
Xudong Bai +9 more
doaj +1 more source
This paper presents a micro-machined, high-resolution refractive index sensor suitable for monitoring of small changes in the composition of gases. Experimentally demonstrated measurement resolution, induced by gas composition variation, proved to be in ...
S. Pevec, D. Donlagic
semanticscholar +1 more source
Multipolar Resonances in Electro‐Optic Metasurfaces with Moderate Refractive Index
Electro‐optic nanoantennas with moderate refractive indices of 2.3 to 3.0 are numerically shown to sustain strong multipolar resonances, enabling efficient light confinement and EO tuning. Multipolar modes of even parity are most sensitive to variations in the refractive index.
Viktoriia E. Babicheva +1 more
wiley +1 more source
In this paper, we report on new high-precision absolute distance measurements performed with frequency scanned interferometry using a pair of single-mode optical fibers.
Barwood +12 more
core +2 more sources
An Ultra‐Wideband Metasurface Perfect Absorber Based on Hybrid Absorption Modes
A Ge2Sb2Te5 metasurface absorber enables polarization‐independent, ultrabroadband (UV–NIR) light absorption with high angular tolerance. Its performance stems from overlapping electric and magnetic dipole resonances in a symmetric structure, achieving 94% average absorption and maintaining 83% even at 70° incidence, promising for integrated ...
Dingbang Liu +8 more
wiley +1 more source
A High Altitude Measurement to Determine the Ratio of Deuterium to Hydrogen in the Solar Atmosphere Final Report, 1 Jun. 1965 - 30 Mar. 1966 [PDF]
Fabry-Perot interferometers used to determine ratio of deuterium to hydrogen in solar ...
Henderson, G.
core +1 more source
In this paper, we present a miniature fiber-optic Fabry–Pérot interferometric pressure sensor based on an in situ printed fiber-top air cavity. With an in-house optical 3D μ-printing setup, a suspended SU-8 diaphragm with light scatter is directly ...
Jushuai Wu +5 more
semanticscholar +1 more source

