Journal ArticleDOI
Semianalytical method to study silicon slot waveguides for optical sensing application
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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Proceedings ArticleDOI
Study of characteristics of MMI devices using matrix approach
TL;DR: The propagation constant and mode profile of different modes of a multimode waveguide are determined and the field intensity for the combination of all the modes at different propagation distance is obtained.
Journal ArticleDOI
Multilayered photonic integration on SOI platform using waveguide-based bridge structure
TL;DR: In this article, a waveguide-based structure on silicon on insulator platform is proposed for vertical integration in photonic integrated circuits, which consists of two multimode interference couplers connected by a single mode (SM) section.
Journal ArticleDOI
Segmented multimode to dual port slot couplers as compact optical sensors with improved sensitivity
TL;DR: In this paper, a segmented silicon based multimode to dual port slot structure on silicon-on-insulator platform is proposed which can be used as a refractive index sensing device.
Proceedings ArticleDOI
Analysis of photonic spot profile converter and bridge structure on SOI platform for horizontal and vertical integration
Saikat Majumder,Saikat Majumder,Amit Kr. Jha,Aishik Biswas,Debasmita Banerjee,Dipankar Ganguly,Rajib Chakraborty +6 more
TL;DR: In this paper, the authors used the semi-analytical matrix method to analyze horizontal and vertically integrated photonic circuits for both TE and TM modes at 1550 nm wavelength using the semi analytical matrix method which is simple and fast in computation time and memory.
Proceedings ArticleDOI
Multipath trapping dynamics of nanoparticles towards an integrated waveguide with a high index contrast
TL;DR: In this article, the authors studied the trapping dynamics of a nanoparticle near a high-index-contrast slot waveguide, under the influence of water flow perpendicular to the waveguide.
References
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