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Crystal Slab (crystal + slab)

Distribution by Scientific Domains
Physics and Astronomy75%

Selected Abstracts

Waveguide-plasmon polaritons in photonic crystal slabs with metal nanowires

PHYSICA STATUS SOLIDI (C) - CURRENT TOPICS IN SOLID STATE PHYSICS, Issue 2 2005
S. G. Tikhodeev
Abstract The optical properties of a photonic crystal slab made of periodic arrays of gold nanowires on top of different dielectric substrates, supporting and not supporting the guided modes are discussed. While only Rayleigh-type anomalies are observed for thin dielectric substrates, thicker waveguiding substrates demonstrate strong coupling phenomena. It is shown that the interaction between the quasiguided modes in the photonic crystal slab and the localised plasmons in metal nanostructures results in the formation of a strongly coupled waveguide-plasmon polariton. The formation of the new quasiparticle manifests itself in the strong anticrossing between quasiguided modes and plasmon resonances in the measured as well as calculated optical spectra. The effect opens new possibilities for photonic band gap engineering in metallic-dielectric photonic crystals. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Approximate solution of the Takagi,Taupin equations for a semi-infinite crystal in the three-beam Laue,Laue case

ACTA CRYSTALLOGRAPHICA SECTION A, Issue 4 2001
Gunnar Thorkildsen
An analytical approximate solution of the Takagi,Taupin equations for a symmetrical three-beam Laue,Laue case in a perfect non-absorbing semi-infinite crystal slab has been obtained. The expression, a second-order expansion, is valid for situations where the effective crystal thickness does not exceed half the actual extinction length and it is shown to be in perfect agreement with the full numerical solution of the fundamental equations. [source]

Light,matter interaction in photonic crystal slabs

PHYSICA STATUS SOLIDI (B) BASIC SOLID STATE PHYSICS, Issue 10 2007
Lucio Claudio Andreani
Abstract A theoretical treatment of waveguide-embedded photonic crystals based on a guided-mode expansion method is reviewed. The following issues are discussed: (i) a formulation of the method for calculating photonic-mode dispersion and intrinsic losses due to out-of-plane diffraction, (ii) modelling of disorder-induced losses due to fabrication imperfections, and (iii) a quantum-mechanical treatment of radiation-matter interaction, with application to exciton-polaritons in photonic crystal slabs. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Waveguide-plasmon polaritons in photonic crystal slabs with metal nanowires

PHYSICA STATUS SOLIDI (C) - CURRENT TOPICS IN SOLID STATE PHYSICS, Issue 2 2005
S. G. Tikhodeev
Abstract The optical properties of a photonic crystal slab made of periodic arrays of gold nanowires on top of different dielectric substrates, supporting and not supporting the guided modes are discussed. While only Rayleigh-type anomalies are observed for thin dielectric substrates, thicker waveguiding substrates demonstrate strong coupling phenomena. It is shown that the interaction between the quasiguided modes in the photonic crystal slab and the localised plasmons in metal nanostructures results in the formation of a strongly coupled waveguide-plasmon polariton. The formation of the new quasiparticle manifests itself in the strong anticrossing between quasiguided modes and plasmon resonances in the measured as well as calculated optical spectra. The effect opens new possibilities for photonic band gap engineering in metallic-dielectric photonic crystals. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]