NASA Technical Reports Server (Ntrs) 20130011724: Investigation of Truncated waveguides by NASA Technical Reports Server (Ntrs); NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 20130011724: Investigation of Truncated waveguides by NASA Technical Reports Server (Ntrs); NASA Technical Reports Server (Ntrs); published by
Dtic Adp012730: High Frequency Properties of Electron waveguides, Ac-Admittance, Scattering Parameters, Plasma Oscillations by Defense Technical Information Center; published by
Dtic Adp012730: High Frequency Properties of Electron waveguides, Ac-Admittance, Scattering Parameters, Plasma Oscillations by Defense Technical Information Center; published by
Dtic Adp013945: Diffraction on the Eigen Waves on an Inclined Medium Interface in the waveguides with Metallic Bounds by Defense Technical Information Center; published by
Dtic Adp013945: Diffraction on the Eigen Waves on an Inclined Medium Interface in the waveguides with Metallic Bounds by Defense Technical Information Center; published by
NASA Technical Reports Server (Ntrs) 20150003254: Photonic Choke-Joints for Dual Polarization waveguides by NASA Technical Reports Server (Ntrs); NASA Technical Reports Server (Ntrs); published by
NASA Technical Reports Server (Ntrs) 20150003254: Photonic Choke-Joints for Dual Polarization waveguides by NASA Technical Reports Server (Ntrs); NASA Technical Reports Server (Ntrs); published by
Within Silicon-based waveguide arrays, we demonstrate that sub-λ, below band-gap, nanostructured waveguides can provide a robust control and a fine tuning of the coupling coefficient.
ISBN:
(纸本)9781509067374
Within Silicon-based waveguide arrays, we demonstrate that sub-λ, below band-gap, nanostructured waveguides can provide a robust control and a fine tuning of the coupling coefficient.
Exploring new spectral bands for optical transmission is one of the solutions to support the increasingly demand of data traffic. The recent development of dedicated hollow-core photonic bandgap fibers [1], associated...
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ISBN:
(纸本)9781509067374
Exploring new spectral bands for optical transmission is one of the solutions to support the increasingly demand of data traffic. The recent development of dedicated hollow-core photonic bandgap fibers [1], associated to the emergence of thulium doped fiber amplifiers [2] has recently focused the attention further in the infrared, and more specifically around 2 μm. Regarding integrated photonics, it becomes therefore interesting to find a suitable platform to operate at 2 μm as well as in the other more conventional spectral bands (going from 800 nm to 1550 nm). Here, we propose titanium dioxide (TiO_2) as a good candidate for integrated waveguide photonics and demonstrate, for the first time, high bit rate transmissions at 1550 nm and 1980 nm.
We explore the optical properties of a coaxial plasmonic metamaterial consisting of hollow dielectric cylinders with a diameter of 100-250 nm and a ring wall width of 10-50 nm, embedded in metal. We investigate the mo...
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We explore the optical properties of a coaxial plasmonic metamaterial consisting of hollow dielectric cylinders with a diameter of 100-250 nm and a ring wall width of 10-50 nm, embedded in metal. We investigate the modal electric and magnetic fields and dispersion relation for different geometries and material choices of a single coaxial channel by using realistic values for all design parameters. The Fabry-Perot modes of a finite thickness slab are investigated with cathodoluminescence spectroscopy and explained by extracting the mode index from FDTD simulations. Furthermore, we investigate the coupling behavior of adjacent coaxes inside a hexagonal array. We find a change from the single-ring dispersion relation for coaxes with a ring-to-ring distance smaller than 20 nm.
We present two complementary models to study stationary nonlinear solutions in one-dimensional plasmonic slot waveguides made of a finite-thickness nonlinear dielectric core surrounded by metal regions. The considered...
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We present two complementary models to study stationary nonlinear solutions in one-dimensional plasmonic slot waveguides made of a finite-thickness nonlinear dielectric core surrounded by metal regions. The considered nonlinearity is of focusing Kerr type. In the first model, it is assumed that the nonlinear term depends only on the transverse component of the electric field and that the nonlinear refractive index change is small compared to the linear part of the refractive index. This first model allows us to describe analytically the field profiles in the whole waveguide using Jacobi elliptic special functions. It also provides a closed analytical formula for the nonlinear dispersion relation. In the second model, the full dependency of the Kerr nonlinearity on the electric-field components is taken into account and no assumption is required on the amplitude of the nonlinear term. The disadvantage of this approach is that the field profiles must be computed numerically. Nevertheless, analytical constraints are obtained to reduce the parameter space where the solutions of the nonlinear dispersion relations are sought.
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