Results 191 to 200 of about 14,300 (240)

Half-disordered photonic crystal slabs

Applied Optics, 2016
Optical transmission spectra of finite-thickness slabs of two-dimensional triangular-lattice photonic crystals of air holes in a dielectric matrix with various concentrations of randomly located vacancies (absent air holes) are studied. We focus on structures in which only one half of the structure-the incidence or transmission side-is disordered.
V, Beque, J, Keilman, D S, Citrin
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Polymer photonic crystal slab waveguides

SPIE Proceedings, 2001
Finite two-dimensional (2d) polymer photonic crystal (PC) slab waveguides were fabricated from a benzocyclobutene polymer on a low refractive index substrate from Teflon. Square and triangular air hole lattices were realized by electron beam lithography and reactive ion etching.
Manfred Eich, Christian Liguda, Gunnar Boettger, H. Roth, J. Kuhnert, W. Morgenroth, Harald Elsner, H. G. Meyer   +7 more
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Design of annular photonic crystal slabs

Optics Letters, 2008
We present the design of realistic annular photonic-crystal (APC) structures of finite thickness aiming to obtain a complete photonic bandgap (PBG). The APC is composed of dielectric rods and circular air holes in a triangular lattice such that each rod is centered within each hole.
H, Kurt, R, Hao, Y, Chen, J, Feng, J, Blair, D P, Gaillot, C, Summers, D S, Citrin, Z, Zhou   +8 more
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Green’s function for photonic crystal slabs

Physical Review E, 2005
Green's tensors for photonic crystal (PC) slabs are numerically solved by the coupled-dipole approximation (CDA) technique. The obtained components of Green's tensors satisfy discontinuous or continuous conditions at interfaces of scatterers. This shows that the CDA technique is very applicable to studying the properties of PC slabs.
Li-Ming, Zhao, Xue-Hua, Wang, Ben-Yuan, Gu, Guo-Zhen, Yang   +3 more
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Slab polymer photonic crystals

SPIE Proceedings, 2004
Photonic crystals enable a reduction in the size of current photonic devices by virtue of forbidden propagation, except along engineered lines of defects. Furthermore, propagation above the band-gap has unique characteristics such as the superprism effect.
Roberto R. Panepucci, Bryan H. Kim, Vilson R. Almeida, Matthew D. Jones   +3 more
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Photonic crystal slotted slab waveguides

Photonics and Nanostructures - Fundamentals and Applications, 2008
We report on the fabrication of photonic crystal waveguides in SOI that comprise an air-slot in the centre. The slot serves to confine suitably polarised optical radiation (H-polarisation) and due to its small size, provides extremely high field intensity values out with the high index material.
A. Di Falco, L. O’Faolain, T.F. Krauss
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Correlation Effects in Disordered Metallic Photonic Crystal Slabs

Physical Review Letters, 2007
We analyze the influence of correlations on the optical properties of disordered metallic photonic crystal slabs experimentally and theoretically. Different disorder models with different nearest-neighbor correlations are considered. We present a theory that allows us to quantitatively calculate the optical properties of the different samples.
Nau, D., Schönhardt, A., Bauer, C., Christ, A., Zentgraf, T., Kuhl, J., Klein, M., Giessen, H.   +7 more
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Coherent Thermal Antenna Using a Photonic Crystal Slab

Physical Review Letters, 2006
We show that a photonic crystal film can emit coherent thermal radiation. We demonstrate the key role of leaky waves existing at the air-photonic crystal interface. The frequency and direction of emission depend on the lattice parameters. This paves the way towards the design of coherent infrared antennas.
Carminati, Rémi, Greffet, Jean-Jacques, Laroche, Marine   +2 more
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Photonic-Band Structure of Magnetic Photonic Crystal Slabs

2005 Asia-Pacific Microwave Conference Proceedings, 2006
In this paper, we introduce a rigorous computational method for the evaluation of the band structure of magnetic photonic crystal (MPC) slabs. With the help of this method, the full-wave analysis of the structure can be reduced to the analysis of an equivalent multi-conductor transmission line.
H. Ajam, M. Shahabadi
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Photonic Crystal Slabs

2001
The radiational eigenmodes in photonic crystal slabs are classified into guided and leaky modes. The former are genuine eigenmodes with infinite lifetimes, while the latter are quasi-eigenmodes with finite lifetimes. We will show that the dispersion curves of photonic crystal slabs are well represented by the folding of those in uniform dielectric ...
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