Design and Optimization of Two-Dimensional Nano-Arrays for Beam Steering

Date

2018-03-29

Author

Altinoklu, Askin
Rasoolzadeh, N.
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

48
views

0
downloads

We consider design and optimization of nanoarrays involving two-dimensional arrangements of nanoparticles. Similar to their counterparts used at the lower frequencies, nanoantennas can be arranged periodically to achieve directive and/or controllable radiation patterns at optical frequencies. While nanoantenna geometries are usually simple due to restrictions in nanoscale fabrications, their robust analysis still requires accurate simulation tools that model strong plasmonic interactions between particles. We use a full-wave optimization environment based on heuristic algorithms and surface integral equations to optimize two-dimensional nano-arrays and to shape their radiation patterns for nano-optical applications.

URI

https://hdl.handle.net/11511/55888

Conference Name

International Applied Computational Electromagnetics Society Symposium (ACES)

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Design and Optimization of Two-Dimensional Nano-Arrays for Directive Radiation Altinoklu, Askin; Ergül, Özgür Salih (2019-02-01) We consider design, optimization, and computational analysis of nano-arrays involving two-dimensional arrangements of nanoparticles. Similar to their counterparts used at the lower frequencies, nanoantennas can be arranged periodically to achieve directive and/or controllable radiation patterns at optical frequencies. While nanoantenna geometries are usually simple due to restrictions in nanoscale fabrications, their robust analysis still requires accurate simulation tools to model strong plasmonic interact...
Design, optimization, and analyses of nano-optical couplers consisting of nanocubes to construct efficient nanowire transmission systems Altınoklu, Aşkın; Ergül, Özgür Salih (2021-01-01) We present the design, optimization, and analyses of efficient couplers to construct nano-optical transmission systems involving nanowires. The couplers consist of optimized arrangements of nanocubes and are integrated into critical locations, such as nanowire inputs, corners, and junctions, to improve electromagnetic transmission in accordance with design purposes. Optimization and numerical analyses are performed by employing an efficient simulation environment based on a full-wave solver and genetic algo...
Analysis of Composite Structures Involving Near-Zero-Index Materials Koyaz, Yesim; İbili, Hande; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2019-01-01) We consider numerical solutions of electromagnetic problems involving near-zero-index materials with permittivity and/or permeability values close to zero. These types of problems are inherently multiscale due to the large variety of the wavelength from very large values to ordinary values in the same problem. In addition to developing a stable formulation for extreme values of the intrinsic impedance, we employ a broadband multilevel fast multipole algorithm based on approximate diagonalization for efficie...
Design and analysis of nano-optical networks consisting of nanowires and optimized couplers Altinoklu, Askin; Karaova, Gokhan; Ergül, Özgür Salih (2019-09-01) We present computational design and investigation of nano-optical systems involving nanowires and well-designed nano-couplers to effectively transmit electromagnetic power in nanometer scales. Different nano-couplers, which consist of optimal arrangements of nano-cubes, are carefully designed by considering various scenarios, e.g., nanowire lines with sharp corners and junctions. An efficient combination of genetic algorithms and the multilevel fast multipole algorithm is used to find suitable configuration...
Design and optimization of nanooptical couplers based on photonic crystals involving dielectric rods of varying lengths Yazar, Şirin; Ergül, Özgür Salih (2022-1-01) This study presents design and optimization of compact and efficient nanooptical couplers involving photonic crystals. Nanooptical couplers that have single and double input ports are designed to obtain efficient transmission of electromagnetic waves in desired directions. In addition, these nanooptical couplers are cascaded by adding one after another to realize electromagnetic transmission systems. In the design and optimization of all these nanooptical couplers, the multilevel fast multipole algorithm, w...

Citation Formats

A. Altinoklu, N. Rasoolzadeh, and Ö. S. Ergül, “Design and Optimization of Two-Dimensional Nano-Arrays for Beam Steering,” presented at the International Applied Computational Electromagnetics Society Symposium (ACES), Denver, CO, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55888.