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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 30 — Oct. 20, 2013
  • pp: 7367–7375

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

Elif Degirmenci and Pascal Landais  »View Author Affiliations


Applied Optics, Vol. 52, Issue 30, pp. 7367-7375 (2013)
http://dx.doi.org/10.1364/AO.52.007367


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Abstract

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.

© 2013 Optical Society of America

OCIS Codes
(160.3900) Materials : Metals
(040.2235) Detectors : Far infrared or terahertz
(160.5293) Materials : Photonic bandgap materials
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: May 23, 2013
Revised Manuscript: August 18, 2013
Manuscript Accepted: September 25, 2013
Published: October 18, 2013

Citation
Elif Degirmenci and Pascal Landais, "Finite element method analysis of band gap and transmission of two-dimensional metallic photonic crystals at terahertz frequencies," Appl. Opt. 52, 7367-7375 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-30-7367

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