3D Bulk Metamaterials with Engineered Optical Dispersion at Terahertz Frequencies Utilizing Amorphous Multilayered Split‐Ring Resonators
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Science"
DOI: 10.1002/advs.202405378
Abstract: A 3D bulk metamaterial (MM) containing amorphous multilayered split‐ring resonators is proposed, fabricated, and evaluated. Experimentally, the effective refractive index is engineered via the 3D bulk MM, with a contrast of 0.118 across the frequency… read more here.
Keywords: optical dispersion; split ring; amorphous multilayered; ring resonators ... See more keywords
All-optical 6- and 8-channel demultiplexers based on photonic crystal multilayer ring resonators in Si/C rods
Sign Up to like & getrecommendations! Published in 2017 at "Photonic Network Communications"
DOI: 10.1007/s11107-017-0688-x
Abstract: In this paper, we employed multilayer ring resonators in a silicon rod base structure to realize 6-channel and 8-channel demultiplexers based on two-dimensional photonic crystals. Both the main rings and basic structures are composed of… read more here.
Keywords: channel demultiplexers; ring resonators; demultiplexers based; multilayer ring ... See more keywords
Optimization and Performance Analysis of All-Optical Compact 4 and 5-Channel Demultiplexers Based on 2D PC Ring Resonators for Applications in Advanced Optical Communication Systems
Sign Up to like & getrecommendations! Published in 2020 at "Silicon"
DOI: 10.1007/s12633-020-00614-y
Abstract: This paper takes account of the design of 4 and 5 two-dimensional photonic crystal demultiplexers (2D PC DMUXs) and their performance analysis using quasi hexagonal ring resonators. The suggested DMUXs are composed of bus/drop waveguides,… read more here.
Keywords: performance analysis; ring resonators; channel; optical communication ... See more keywords
A novel design for 2-bit optical analog to digital (A/D) converter based on nonlinear ring resonators in the photonic crystal structure
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124760
Abstract: Abstract In this paper, a new configuration for full optical analog to digital convertor (OADC) based on nonlinear materials has been proposed. This structure is the combination of two main parts; Quantization block, followed by… read more here.
Keywords: based nonlinear; optical analog; ring resonators; analog digital ... See more keywords
Numerical investigation of photonic crystal ring resonators coupled bus waveguide as a highly sensitive platform
Sign Up to like & getrecommendations! Published in 2019 at "Photonics and Nanostructures - Fundamentals and Applications"
DOI: 10.1016/j.photonics.2019.02.002
Abstract: Abstract Optic and photonic sensing is a useful and novel technology for bio-sensing applications. In this paper, we have numerically designed and investigated sensitive photonic crystal ring resonators and three different structures of photonic crystal… read more here.
Keywords: quality factor; riu; crystal ring; ring ... See more keywords
Application of nonlinear ring resonators for realizing all-optical digital multiplexers
Sign Up to like & getrecommendations! Published in 2021 at "Photonics and Nanostructures - Fundamentals and Applications"
DOI: 10.1016/j.photonics.2021.100920
Abstract: Abstract In this paper, an all-optical 4-to-1 digital multiplexer is proposed based on photonic crystals. A digital multiplexer is a combinational logic device allowing control of which one of four input ports can be connected… read more here.
Keywords: nonlinear ring; resonators realizing; application nonlinear; optical digital ... See more keywords
Active mid-infrared ring resonators
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-023-44628-7
Abstract: Multifunctional active mid-infrared ring resonators and directional couplers with quantum cascade laser cores allow electrical control of resonant frequency and quality factors, tunable filtering and frequency comb generation. High-quality optical ring resonators can confine light… read more here.
Keywords: spectroscopy; ring resonators; infrared ring; mid infrared ... See more keywords
Silicon rich nitride ring resonators for rare – earth doped telecommunications-band amplifiers pumped at the O-band
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-09732-x
Abstract: Ring resonators on silicon rich nitride for potential use as rare-earth doped amplifiers pumped at 1310 nm with amplification at telecommunications-band are designed and characterized. The ring resonators are fabricated on 300 nm and 400 nm silicon rich… read more here.
Keywords: silicon rich; ring resonators; telecommunications band; rare earth ... See more keywords
Superdirective dimers of coupled self-resonant split ring resonators: Analytical modelling and numerical and experimental validation
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-019-56988-6
Abstract: Superdirective antennas developed over the last century have received renewed interest in recent years from the development of metamaterials. These arrays of electromagnetic resonators (or meta-atoms) carrying short wavelength electro- and/or magneto-inductive waves support current… read more here.
Keywords: superdirective dimers; dimers coupled; ring resonators; split ring ... See more keywords
Sensitivity and quality factor improvement of photonic crystal sensors by geometrical optimization of waveguides and micro-ring resonators combination
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-52363-2
Abstract: In this work, the process of designing and simulating optical sensors based on photonic crystal (PC) micro-ring resonators (MRRs) has been investigated. According to the PC type, different waveguides and resonators can be designed, and… read more here.
Keywords: ring resonators; combination; quality factor; photonic crystal ... See more keywords
Experiment on terahertz metasurfaces of metal split ring resonators with bound state in the continuum
Sign Up to like & getrecommendations! Published in 2023 at "APL Materials"
DOI: 10.1063/5.0147843
Abstract: A bound state in the continuum (BIC) is a wave that coexists with a continuous wave but remains localized. In the terahertz band, BIC can design devices with an ultra-high mass factor (Q factor), which… read more here.
Keywords: bound state; metal split; ring resonators; split ring ... See more keywords