Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides
We have analyzed electromagnetic wave propagation in photonic bandgap (PBG) structures comprising alternating layers of isotropic dielectric-magnetic materials with positive phase velocity and negative phase velocity, implemented in different waveguides of uniform cross-section (parallel-plate, rect...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09500340_v56_n15_p1688_Gomez |
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todo:paper_09500340_v56_n15_p1688_Gomez2023-10-03T15:49:55Z Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides Gómez, A. Martínez Ricci, M.L. Depine, R.A. Lakhtakia, A. Circular waveguides Coaxial waveguides Gap map Negative phase velocity Parallel-plate waveguide Photonic band gap Rectangular waveguide Alternating layers Band gaps Coaxial waveguides Cross-sectional shape Cut-off Dielectric-magnetic material Gap map Negative phase velocity Parallel plate waveguide Parallel plates PBG structure Perfectly conducting walls Photonic band-gap structures Photonic bandgap materials Real structure Spectral region Waveguide axis Antennas Circular waveguides Dielectric materials Dielectric waveguides Electromagnetic waves Energy gap Magnetic materials Optical devices Phase velocity Plates (structural components) Production platforms Rectangular waveguides Velocity Waveguide circulators Photonic band gap We have analyzed electromagnetic wave propagation in photonic bandgap (PBG) structures comprising alternating layers of isotropic dielectric-magnetic materials with positive phase velocity and negative phase velocity, implemented in different waveguides of uniform cross-section (parallel-plate, rectangular, circular, and coaxial) and perfectly conducting walls. The structures could be either ideal (i.e. of infinite extent along the waveguide axis) or real (i.e. terminated at both ends with homogeneously filled waveguide sections). The spectral locations of the band gaps do not directly depend on the cross-sectional shape and dimensions, but on the cut-off parameter instead, for ideal structures. The band gaps of an ideal structure are located in spectral regions where the reflectance of the corresponding real structure is large. The real structures show four types of band gaps, only one type of which is due to the periodically repetitive constitution of the PBG structure; the remaining three types are not of the Bragg type. Fil:Martínez Ricci, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Depine, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09500340_v56_n15_p1688_Gomez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Circular waveguides Coaxial waveguides Gap map Negative phase velocity Parallel-plate waveguide Photonic band gap Rectangular waveguide Alternating layers Band gaps Coaxial waveguides Cross-sectional shape Cut-off Dielectric-magnetic material Gap map Negative phase velocity Parallel plate waveguide Parallel plates PBG structure Perfectly conducting walls Photonic band-gap structures Photonic bandgap materials Real structure Spectral region Waveguide axis Antennas Circular waveguides Dielectric materials Dielectric waveguides Electromagnetic waves Energy gap Magnetic materials Optical devices Phase velocity Plates (structural components) Production platforms Rectangular waveguides Velocity Waveguide circulators Photonic band gap |
| spellingShingle |
Circular waveguides Coaxial waveguides Gap map Negative phase velocity Parallel-plate waveguide Photonic band gap Rectangular waveguide Alternating layers Band gaps Coaxial waveguides Cross-sectional shape Cut-off Dielectric-magnetic material Gap map Negative phase velocity Parallel plate waveguide Parallel plates PBG structure Perfectly conducting walls Photonic band-gap structures Photonic bandgap materials Real structure Spectral region Waveguide axis Antennas Circular waveguides Dielectric materials Dielectric waveguides Electromagnetic waves Energy gap Magnetic materials Optical devices Phase velocity Plates (structural components) Production platforms Rectangular waveguides Velocity Waveguide circulators Photonic band gap Gómez, A. Martínez Ricci, M.L. Depine, R.A. Lakhtakia, A. Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| topic_facet |
Circular waveguides Coaxial waveguides Gap map Negative phase velocity Parallel-plate waveguide Photonic band gap Rectangular waveguide Alternating layers Band gaps Coaxial waveguides Cross-sectional shape Cut-off Dielectric-magnetic material Gap map Negative phase velocity Parallel plate waveguide Parallel plates PBG structure Perfectly conducting walls Photonic band-gap structures Photonic bandgap materials Real structure Spectral region Waveguide axis Antennas Circular waveguides Dielectric materials Dielectric waveguides Electromagnetic waves Energy gap Magnetic materials Optical devices Phase velocity Plates (structural components) Production platforms Rectangular waveguides Velocity Waveguide circulators Photonic band gap |
| description |
We have analyzed electromagnetic wave propagation in photonic bandgap (PBG) structures comprising alternating layers of isotropic dielectric-magnetic materials with positive phase velocity and negative phase velocity, implemented in different waveguides of uniform cross-section (parallel-plate, rectangular, circular, and coaxial) and perfectly conducting walls. The structures could be either ideal (i.e. of infinite extent along the waveguide axis) or real (i.e. terminated at both ends with homogeneously filled waveguide sections). The spectral locations of the band gaps do not directly depend on the cross-sectional shape and dimensions, but on the cut-off parameter instead, for ideal structures. The band gaps of an ideal structure are located in spectral regions where the reflectance of the corresponding real structure is large. The real structures show four types of band gaps, only one type of which is due to the periodically repetitive constitution of the PBG structure; the remaining three types are not of the Bragg type. |
| format |
JOUR |
| author |
Gómez, A. Martínez Ricci, M.L. Depine, R.A. Lakhtakia, A. |
| author_facet |
Gómez, A. Martínez Ricci, M.L. Depine, R.A. Lakhtakia, A. |
| author_sort |
Gómez, A. |
| title |
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| title_short |
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| title_full |
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| title_fullStr |
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| title_full_unstemmed |
Photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| title_sort |
photonic band gap materials comprising positive-phase-velocity and negative-phase-velocity layers in waveguides |
| url |
http://hdl.handle.net/20.500.12110/paper_09500340_v56_n15_p1688_Gomez |
| work_keys_str_mv |
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1807315882003660800 |