Optimization of photonic crystals for terahertz waveguiding

As technology advances, there is a demand for devices that are increasingly more wirelessly interconnected. This has led to the development of the sixth generation (6G) communications standard. The 6G standard is expected to support the transmission of close to terabit per second data rates. T...

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Main Author: Ho, Kenneth Xin Jie
Other Authors: Ranjan Singh
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2023
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Online Access:https://hdl.handle.net/10356/166525
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1665252023-05-08T15:39:06Z Optimization of photonic crystals for terahertz waveguiding Ho, Kenneth Xin Jie Ranjan Singh School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) ranjans@ntu.edu.sg Science::Physics::Optics and light As technology advances, there is a demand for devices that are increasingly more wirelessly interconnected. This has led to the development of the sixth generation (6G) communications standard. The 6G standard is expected to support the transmission of close to terabit per second data rates. This is enabled by developing terahertz (THz) communications, which have large bandwidth that can support the high data rates. However, THz communications suffer from a few drawbacks, one of which is that THz waves have short propagation distances, and their devices suffer from high loss. Hence, there is a need to develop compact and efficient waveguides for THz waves. Photonic crystals are structures that are periodic in their refractive index, which have been extensively studied in recent years due to their potential applications in optical communications. Photonic crystals have been used to create THz waveguides that can effectively channel the flow of light. In this report, we investigate the design and simulation of these waveguides based on photonic crystals with hexagonal symmetry. We use the plane wave expansion method to simulate the band structure of the crystal to determine the photonic bandgap. By identifying ideal crystal structures for waveguiding, we then construct waveguides with both bearded and zigzag symmetry. It is then shown that the triangular structure is ideal for forming waveguides for the transverse electric mode, but more work needs to be done to identify photonic crystals that are ideal waveguides in the transverse magnetic mode. Bachelor of Science in Physics 2023-05-02T08:02:16Z 2023-05-02T08:02:16Z 2023 Final Year Project (FYP) Ho, K. X. J. (2023). Optimization of photonic crystals for terahertz waveguiding. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/166525 https://hdl.handle.net/10356/166525 en PHY/22/040 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics::Optics and light
spellingShingle Science::Physics::Optics and light
Ho, Kenneth Xin Jie
Optimization of photonic crystals for terahertz waveguiding
description As technology advances, there is a demand for devices that are increasingly more wirelessly interconnected. This has led to the development of the sixth generation (6G) communications standard. The 6G standard is expected to support the transmission of close to terabit per second data rates. This is enabled by developing terahertz (THz) communications, which have large bandwidth that can support the high data rates. However, THz communications suffer from a few drawbacks, one of which is that THz waves have short propagation distances, and their devices suffer from high loss. Hence, there is a need to develop compact and efficient waveguides for THz waves. Photonic crystals are structures that are periodic in their refractive index, which have been extensively studied in recent years due to their potential applications in optical communications. Photonic crystals have been used to create THz waveguides that can effectively channel the flow of light. In this report, we investigate the design and simulation of these waveguides based on photonic crystals with hexagonal symmetry. We use the plane wave expansion method to simulate the band structure of the crystal to determine the photonic bandgap. By identifying ideal crystal structures for waveguiding, we then construct waveguides with both bearded and zigzag symmetry. It is then shown that the triangular structure is ideal for forming waveguides for the transverse electric mode, but more work needs to be done to identify photonic crystals that are ideal waveguides in the transverse magnetic mode.
author2 Ranjan Singh
author_facet Ranjan Singh
Ho, Kenneth Xin Jie
format Final Year Project
author Ho, Kenneth Xin Jie
author_sort Ho, Kenneth Xin Jie
title Optimization of photonic crystals for terahertz waveguiding
title_short Optimization of photonic crystals for terahertz waveguiding
title_full Optimization of photonic crystals for terahertz waveguiding
title_fullStr Optimization of photonic crystals for terahertz waveguiding
title_full_unstemmed Optimization of photonic crystals for terahertz waveguiding
title_sort optimization of photonic crystals for terahertz waveguiding
publisher Nanyang Technological University
publishDate 2023
url https://hdl.handle.net/10356/166525
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