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Title: Waveguide circuits in three-dimensional photonic crystals

Abstract

Waveguide circuits in three-dimensional photonic crystals with complete photonic band gaps are simulated with finite difference time domain (FDTD) simulations, and compared with measurements on microwave scale photonic crystals. The transmission through waveguide bends critically depends on the photonic crystal architecture in the bend region. We have found experimentally and theoretically, a new waveguide bend configuration consisting of overlapping rods in the bend region, that performs better than the simple waveguide bend of terminated rods, especially in the higher frequency portion of the band. Efficient beam splitters with this junction geometry are also simulated.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
965383
Report Number(s):
IS-J 7425
Journal ID: 1569-4410; TRN: US0903681
DOE Contract Number:
DE-AC02-07CH11358
Resource Type:
Journal Article
Resource Relation:
Journal Name: Photonics and Nanostructures-Fundamentals and Applications; Journal Volume: 6; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ARCHITECTURE; CONFIGURATION; GEOMETRY; WAVEGUIDES

Citation Formats

Biswas, Rana, Christensen, C., Muehlmeier, J., Tuttle, G., and Ho, K.-M. Waveguide circuits in three-dimensional photonic crystals. United States: N. p., 2008. Web. doi:10.1016/j.photonics.2008.03.002.
Biswas, Rana, Christensen, C., Muehlmeier, J., Tuttle, G., & Ho, K.-M. Waveguide circuits in three-dimensional photonic crystals. United States. doi:10.1016/j.photonics.2008.03.002.
Biswas, Rana, Christensen, C., Muehlmeier, J., Tuttle, G., and Ho, K.-M. Mon . "Waveguide circuits in three-dimensional photonic crystals". United States. doi:10.1016/j.photonics.2008.03.002.
@article{osti_965383,
title = {Waveguide circuits in three-dimensional photonic crystals},
author = {Biswas, Rana and Christensen, C. and Muehlmeier, J. and Tuttle, G. and Ho, K.-M.},
abstractNote = {Waveguide circuits in three-dimensional photonic crystals with complete photonic band gaps are simulated with finite difference time domain (FDTD) simulations, and compared with measurements on microwave scale photonic crystals. The transmission through waveguide bends critically depends on the photonic crystal architecture in the bend region. We have found experimentally and theoretically, a new waveguide bend configuration consisting of overlapping rods in the bend region, that performs better than the simple waveguide bend of terminated rods, especially in the higher frequency portion of the band. Efficient beam splitters with this junction geometry are also simulated.},
doi = {10.1016/j.photonics.2008.03.002},
journal = {Photonics and Nanostructures-Fundamentals and Applications},
number = 2,
volume = 6,
place = {United States},
year = {Mon Apr 07 00:00:00 EDT 2008},
month = {Mon Apr 07 00:00:00 EDT 2008}
}
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  • In this paper, the magnetooptical effects in dispersive properties for two types of three-dimensional magnetized plasma photonic crystals (MPPCs) containing homogeneous dielectric and magnetized plasma with diamond lattices are theoretically investigated for electromagnetic (EM) wave based on plane wave expansion (PWE) method, as incidence EM wave vector is parallel to the external magnetic field. The equations for two types of MPPCs with diamond lattices (dielectric spheres immersed in magnetized plasma background or vice versa) are theoretically deduced. The influences of dielectric constant, plasma collision frequency, filling factor, the external magnetic field, and plasma frequency on the dispersive properties for bothmore » types of structures are studied in detail, respectively, and some corresponding physical explanations are also given. From the numerical results, it has been shown that the photonic band gaps (PBGs) for both types of MPPCs can be manipulated by plasma frequency, filling factor, the external magnetic field, and the relative dielectric constant of dielectric, respectively. Especially, the external magnetic field can enlarge the PBG for type-2 structure (plasma spheres immersed in dielectric background). However, the plasma collision frequency has no effect on the dispersive properties of two types of three-dimensional MPPCs. The locations of flatbands regions for both types of structures cannot be tuned by any parameters except for plasma frequency and the external magnetic field. The analytical results may be informative and of technical use to design the MPPCs devices.« less
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