Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Nano-Optical Couplers for Efficient Power Transmission Along Sharply Bended Nanowires
Date
2019-02-01
Author
Altinoklu, Askin
Ergül, Özgür Salih
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
143
views
0
downloads
Cite This
We consider nano-optical couplers that consist of optimal arrangements of nanoparticles to improve the transmission abilities of nanowire systems with sharp bends. Previously, it was shown that absence/existence of nanoparticles in a given grid can be optimized such that the power transmission can significantly be increased without curving the bend. In this contribution, we present a detailed investigation and analysis of coupler performances to critical geometric parameters. While the designed couplers are robust against fabrication errors, numerical results demonstrate a remarkable dependency of coupler characteristics to particle types, as well as to bending geometry, due to strong plasmonic interactions at short distances. These findings further support the need for case-dependent optimization that must be performed efficiently and accurately via full-wave simulations.
Subject Keywords
Integral-equation formulations
,
Scattering problems
,
Propagation
URI
https://hdl.handle.net/11511/53791
Journal
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
Collections
Department of Electrical and Electronics Engineering, Article
Suggestions
OpenMETU
Core
Optical Couplers for Sharply Bended Nanowires: Sensitivity to Coupler Nanoparticles
Altinoklu, Askin; Ergül, Özgür Salih (2018-03-29)
We consider optical couplers that consists of optimal arrangements of nanoparticles to improve the transmission abilities of nanowire systems with sharp bends. Previously, it was shown that absence/existence of nanoparticles in a given grid can be optimized such that the power transmission can significantly be increased without smoothing the bend. In this contribution, we present the sensitivity of coupler performances to the particle geometries. Numerical results demonstrate a high dependency of coupler ch...
Modified Combined Tangential Formulation for Stable and Accurate Analysis of Plasmonic Structures
Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2019-05-01)
We consider a modified combined tangential formulation (MCTF) for stable and accurate analysis of plasmonic problems involving metallic objects modeled as penetrable bodies. For a wide range of negative real permittivity values, corresponding to varying characteristics of metals at THz, infrared, and visible frequencies, MCTF provides accurate solutions in comparison to the conventional formulations for penetrable objects. We further show that, for structures with subwavelength dimensions, penetrable models...
Adaptive Control of Necklace States in a Photonic Crystal Waveguide
Yüce, Emre; Sokolov, Sergei; Bertolotti, Jacopo; Combrie, Sylvain; Lehoucq, Gaelle; De Rossi, Alfredo; Mosk, Allard P. (2018-10-01)
Resonant cavities with high quality factor and small mode volume provide crucial enhancement of light matter interactions in nanophotonic devices that transport and process classical and quantum information. The production of functional circuits containing many such cavities remains a major challenge, as inevitable imperfections in the fabrication detune the cavities, which strongly affects functionality such as transmission. In photonic crystal waveguides, intrinsic disorder gives rise to high-Q localized ...
Computational Design of Optical Couplers for Bended Nanowire Transmission Lines
Tuncyurek, Yunus Emre; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2017-07-01)
We present computational analysis, optimization, and design of optical couplers that can be useful to improve the transmission along bended nanowires. After demonstrating the deteriorated energy transmission due to sharp bends, which lead to out-of-phase nanowires and diffraction, we use a rigorous simulation environment to design efficient couplers made of spherical particles. For this purpose, an optimization module based on genetic algorithms is combined with the multilevel fast multipole algorithm, lead...
Well-Conditioned 2D Models of Rod Arrays for Accelerating 3D Simulations of Photonic Crystals and Plasmonic Structures
Hatipoglu, Murat Enes; Sever, Emrah ; Dikmen,Fatih ; Eris, Ozgur; Ergül, Özgür Salih (2021-01-01)
Rod arrays consisting of finite-length cylinders are commonly used in the design of high-frequency resonance scattering assemblies, such as plasmonic, photonic-crystal, and near-zero-index structures. During the optimization of these three-dimensional structures by means of genetic algorithms, analyses with three-dimensional solvers, such as the multilevel fast multipole algorithm, create a time bottleneck On the other hand, simulation results in many applications show features that are independent of longi...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Altinoklu and Ö. S. Ergül, “Nano-Optical Couplers for Efficient Power Transmission Along Sharply Bended Nanowires,”
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL
, pp. 228–233, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53791.