Search Results for "Fractal Nonlinear Resonance"

23:21 EDT 27th August 2014 | BioPortfolio

Original Source: Nonlinear resonance-enhanced excitation of surface plasmon polaritons.

We theoretically investigate nonlinear resonance-enhanced excitation of surface plasmon polaritons in a metal coated by a one-dimensional photonic crystal. Tunneling modes above the air-light line can be directly excited in this structure. Then, with suitable parameters, photon energy and momentum conservation between the tunneling mode and the surface plasmon polaritons can be realized by means of nonlinear four-wave mixing. Compared with the nonlinear excitation of surface plasmon polaritons in a bulk met...

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Researchers develop three-step process for building fractal nanostructures

Fancy Erector Set? Nope. The elaborate fractal structure shown at right (with a close-up below) is many, many times smaller than that and is certainly not child's play. It is the latest example of wha...

Quantum nonlinear optics — photon by photon

This review article summarizes the emerging field of quantum nonlinear optics. Three major approaches to generate optical nonlinearities based on cavity quantum electrodynamics, atomic ensembles with...

Photodynamic therapy by in situ nonlinear photon conversion

An investigation of the use of nonlinear upconversion effects like second-harmonic generation and four-wave mixing within biological tissue indicates that it should be possible to perform photodynamic...

Giant nonlinear response from plasmonic metasurfaces coupled to intersubband transitions

Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known nonlinear optical responses in condensed matter systems—bu...

Soccer displays fractal dynamics

Football (soccer) fascinates millions of fans, almost all of them unaware that the game is subject to the laws of physics. Despite their seemingly arbitrary decisions, players obey certain rules, as t...

All-clear for nonlinear optical imaging

High power femto-second laser pulses used for in vivo nonlinear optical imaging can form DNA products, which may lead to carcinogenesis. A modified cancer risk model now shows that the cancer risk is...

New nonlinear metamaterial is a million times better than traditional options

Read more about New nonlinear metamaterial is a million times better than traditional options

GE Healthcare, Tesla Engineering announce collaboration to develop ultra high-field MRI systems

Today at the joint meeting of the International Society for Magnetic Resonance in Medicine and the European Society for Magnetic Resonance in Medicine and Biology, GE Healthcare and Tesla Engineering...

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Entrainment to a real time fractal visual stimulus modulates fractal gait dynamics.

Fractal patterns characterize healthy biological systems and are considered to reflect the ability of the system to adapt to varying environmental conditions. Previous research has shown that fractal...

Space Charge Induced Nonlinear Effects in Quadrupole Ion Traps.

A theoretical method was proposed in this work to study space charge effects in quadrupole ion traps, including ion trapping, ion motion frequency shift, and nonlinear effects on ion trajectories. The...

A Novel Fractal Coding Method Based on M-J Sets.

In this paper, we present a novel fractal coding method with the block classification scheme based on a shared domain block pool. In our method, the domain block pool is called dictionary and is const...

MR image reconstruction from generalized projections.

Currently, the time required for image reconstruction is prohibitively long if data are acquired using multidimensional imaging trajectories that make use of multichannel systems equipped with nonline...

Homogeneous percolation versus arrested phase separation in attractively-driven nanoemulsion colloidal gels.

We elucidate mechanisms for colloidal gelation of attractive nanoemulsions depending on the volume fraction (ϕ) of the colloid. Combining detailed neutron scattering, cryo-transmission electron micro...

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