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Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies

Degirmenci, Elif and Landais, Pascal orcid logoORCID: 0000-0002-4807-0695 (2013) Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies. Applied Optics, 52 (30). pp. 7367-7375. ISSN 1559-128X

Photonic band gap and transmission characteristics of 2D metallic photonic crystals at THz frequencies have been investigated using finite element method (FEM). Photonic crystals composed of metallic rods in air, in square and triangular lattice arrangements, are considered for transverse electric and transverse magnetic polarizations. The modes and band gap characteristics of metallic photonic crystal structure are investigated by solving the eigenvalue problem over a unit cell of the lattice using periodic boundary conditions. A photonic band gap diagram of dielectric photonic crystal in square lattice array is also considered and compared with well-known plane wave expansion results verifying our FEM approach. The photonic band gap designs for both dielectric and metallic photonic crystals are consistent with previous studies obtained by different methods. Perfect match is obtained between photonic band gap diagrams and transmission spectra of corresponding lattice structure.
Item Type:Article (Published)
Uncontrolled Keywords:TH radiation
Subjects:Engineering > Materials
Physical Sciences > Nanotechnology
Physical Sciences > Photonics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:Optical Society of America
Official URL:http://dx.doi.org/10.1364/AO.52.007367
Copyright Information:© 2013 Optical Society of America
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:24228
Deposited On:19 Feb 2020 16:38 by Pascal Landais . Last Modified 04 Mar 2020 13:48

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