Journal ArticleDOI
Semianalytical method to study silicon slot waveguides for optical sensing application
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TLDR
In this article, an effective index based matrix method was used to analyze high-index contrast slab and slot optical waveguides, and the results were compared with results obtained from numerical techniques like finite element method, finite-difference time-domain, and beam propagation method.Abstract:
High-index contrast slab and slot optical waveguides have a high index variation both along the lateral and vertical interfaces and are usually analyzed numerically, requiring large computer memory and time. In this article, their analysis is done semianalytically using an effective-index based matrix method. This method, which is computationally very fast, was earlier used successfully for low-index profile waveguide structures only and is now suitably modified for use in high-index contrast structures. The electric field profile of the waveguide structures is plotted and the effective refractive index at different wavelengths is calculated. The results are compared with results obtained from numerical techniques like finite element method, finite-difference time-domain, and beam propagation method and they match very well. The dependence of their different optical characteristics with the waveguide parameters is also studied. These studies will help in obtaining improved sensitivity of slot waveguides for sensing applications.read more
Citations
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Journal ArticleDOI
Improvement of integrated electric field sensor based on hybrid segmented slot waveguide
Musab A. M. Al-Tarawni,Ahmad Ashrif A Bakar,Ahmad Rifqi Md Zain,Mou'ad A. Tarawneh,Sahrim Ahmad +4 more
TL;DR: In this article, the authors investigated a modification by adding a Si layer beneath a segmented slot waveguide (SSW) and optimizing the hybrid SSW as the core of a sensor to determine the sensor features in terms of the frequency response and sensitivity.
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Indistinguishability and collection efficiency of transition metal dichalcogenides single photon emitters embedded in silicon nitride photonic integrated circuits
TL;DR: In this paper, the authors explored the impact of waveguide design in photon collection efficiency and indistinguishability of single photon emitters embedded in photonic integrated circuits and proposed an analytical model based in the Green dyadic of the Helmholtz equation for different geometries of the waveguide.
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Optimizing an integrated waveguide modulator for sensitive low-frequency alternating-current electric-field sensors
Musab A. M. Al-Tarawni,Ahmad Ashrif A Bakar,Ahmad Rifqi Md Zain,Ahmad Rifqi Md Zain,Mou'ad A. Tarawneh,Sahrim Ahmad +5 more
TL;DR: In this article, an optimized segmented slot waveguide was used as the core of a sensor to determine the sensor features that produce useful frequency responses and sensitivity for low-frequency alternating-current (AC) electric-field sensors.
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Enhancement of the indistinguishability of single photon emitters coupled to photonic waveguides.
TL;DR: In this article, the authors developed an analytical model that uses the Green's Dyadic of a 3D unbounded rectangular waveguide to calculate the coupling and the indistinguishability of an ideal point-source quantum emitter coupled to a photonic waveguide depending on its orientation and position.
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Design of low loss surface plasmon polariton waveguide and its use as hybrid Tamm sensor with improved sensitivity
TL;DR: In this article, a compact, dielectric-metal-dielectric surface plasmon polariton (SPP) waveguide is designed that can have propagation lengths as high as several thousand microns.
References
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Journal ArticleDOI
Simulation Demonstration and Experimental Fabrication of a Multiple-Slot Waveguide
TL;DR: In this article, a double-slot waveguide with oxide and air as low index slot materials is realized experimentally and the formation processes of the slots are analyzed, and the results show a nearly 30% enhancement of optical intensity compared with the traditional single-slot Waveguide with the same slot gap width.
Journal ArticleDOI
Analysis of directional coupler electro-optic switches using effective-index-based matrix method
TL;DR: In this paper, the effective index-based matrix method (EIMM) was used to simulate the characteristics of integrated-optic directional coupler switch (both the uniform-Δ β and reversed-∆ β types) based on electrooptic (EO) effect, which is derived from the distributions of optical power and electrical modulating field within the device.
Journal ArticleDOI
Simple and effective calculation of modal properties of bent slot waveguides
TL;DR: In this paper, the effective refractive index and bending loss of a three-dimensional bend-slotted waveguide were analyzed using a combined effective index method/modified transfer-matrix method.
Proceedings ArticleDOI
Integrated optical waveguides in LiNbO3: modeling and experimental analysis
TL;DR: In this article, an effective-index-based matrix method has been presented for computing modal electric field and intensity profiles in single and coupled graded-index channel waveguides.
Journal ArticleDOI
A design for a photonic syringe with multimode coupled slot waveguides.
TL;DR: A design is proposed that allows non-stationary field distribution with Bragg gratings in multiple slot waveguides, according to controllable selection rules, based on mode symmetry, to have potential applications for bidirectional particle trapping and manipulation, optofluidics, optomechanics and biotechnology.