Results 51 to 60 of about 162,562 (165)
A Plasmonic Chip-Scale Refractive Index Sensor Design Based on Multiple Fano Resonances
In this paper, multiple Fano resonances preferred in the refractive index sensing area are achieved based on sub-wavelength metal-insulator-metal (MIM) waveguides.
Kunhua Wen +4 more
doaj +1 more source
A single nanogroove milled into a silver nanowire is shown to function as an on‐chip chiral plasmonic filter. The point defect selectively converts and interferes with guided plasmonic modes, enabling handedness‐dependent transmission under ± 45° polarized excitation.
Huijie Wang +7 more
wiley +1 more source
Ultracompact Electroabsorption Modulators Based on Tunable Epsilon-Near-Zero-Slot Waveguides
We present a promising application of epsilon-near-zero (ENZ) materials in optical modulators. When a thin ENZ film is sandwiched in a single-mode waveguide, an ENZ-slot waveguide is formed, where the absorption can be greatly enhanced.
Zhaolin Lu, Wangshi Zhao, Kaifeng Shi
doaj +1 more source
In this work, thin‐film lithium niobate Mach–Zehnder modulators are realized using codesigned slow‐light optical waveguides and inductively loaded RF electrodes. This dual slow‐wave engineering optimizes velocity matching, achieving Vπ·L = 0.3 V cm, bandwidths up to 200 GHz, Vπ ≤ 1 V, and short device lengths, offering an efficient solution for high ...
Zobeyde Dadkhah +2 more
wiley +1 more source
Investigation of a novel silicon-on-insulator Rib-Slot photonic sensor based on the vernier effect and operating at 3.8 µm [PDF]
In this paper, we present the theoretical investigation of photonic sensors based on Vernier effect with two cascade-coupled ring resonators in silicon on insulator technology. The photonic chip utilizes rib and slot waveguides designed to operate at 3.8
Troia B., Passaro V. M. N.
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High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan +4 more
wiley +1 more source
Nonlinear losses of highly nonlinear silicon/organic photonics slot waveguides are analyzed. Unlike silicon strip waveguides, slot waveguides do not show absorption related speed limitations up to highest input ...
Baets, Roel +19 more
core +1 more source
Enhanced spontaneous raman signal collected evanescently by silicon nitride slot waveguides [PDF]
We investigate the effect of waveguide geometry on the conversion efficiency of Raman signals collected by integrated photonic waveguides. Compared to strip-type photonic wires, we report a six-fold increase in conversion efficiency for silicon-nitride ...
Baets, Roel +14 more
core +1 more source
Guided acoustic and optical waves in silicon-on-insulator for Brillouin scattering and optomechanics
We numerically study silicon waveguides on silica showing that it is possible to simultaneously guide optical and acoustic waves in the technologically important silicon on insulator (SOI) material system.
Christopher J. Sarabalis +2 more
doaj +1 more source
Thin‐film ferroelectric microcapacitors are analyzed using full‐wave electromagnetic simulations to establish design rules linking material properties, geometry, and electrical performance. The relationships among ferroelectric permittivity, film thickness, dielectric tunability, and coplanar capacitor geometry are established.
Viktoriia E. Babicheva, Edl Schamiloglu
wiley +1 more source

