Search Results for "Fractal Nonlinear Resonance"

13:19 EDT 3rd July 2015 | 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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Predicting nonlinear properties of metamaterials from the linear response

Nonlinear scattering theory, contrary to Miller’s rule, is shown to be able to establish the nonlinear optical response of metamaterials, a tool that can be used towards the efficient design of stro...

Fractal patterns may uncover new line of attack on cancer

(Institute of Physics) Studying the intricate fractal patterns on the surface of cells could give researchers a new insight into the physical nature of cancer, and provide new ways of preventing the d...

Multi-scale Fractal-based Methods for Useful Characterizations of Surface Topographies

Controllable spatiotemporal nonlinear effects in multimode fibres

Highly nonlinear effects are observed in graded-index multimode optical fibres.

Controlling light with metamaterial-based nonlinear photonic crystals

Nonlinearity engineering is demonstrated by the construction of metamaterial-based photonic crystals. Nonlinear emission and diffraction are controlled and intense focusing is reported.

Backward phase-matching for nonlinear optical generation in negative-index materials

Phase-matching in the backward direction—the so-called nonlinear mirror effect—is demonstrated experimentally between the fundamental and second harmonic, using two distinct modes in a metal–die...

Breakthrough in nonlinear optics research

A method to selectively enhance or inhibit optical nonlinearities in a chip-scale device has been developed by scientists, led by the Univ. of Sydney. The researchers from the Centre for Ultrahigh ban...

Pharmaceutical Research: In Silico Predictions of Human Skin Permeability using Nonlinear Quantitative Structure–Property Relationship Models

Type: Original PaperPurposePredicting human skin permeability of chemical compounds accurately and efficiently is useful for developing dermatological medicines and cosmetics. However, previous work h...

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Self-avoiding walk on fractal complex networks: Exactly solvable cases.

We study the self-avoiding walk on complex fractal networks called the (u,v)-flower by mapping it to the N-vector model in a generating function formalism. First, we analytically calculate the critica...

Anomalous diffusion in a quenched-trap model on fractal lattices.

Models with mixed origins of anomalous subdiffusion have been considered important for understanding transport in biological systems. Here one such mixed model, the quenched-trap model (QTM) on fracta...

Three-Dimensional Surface Parameters and Multi-Fractal Spectrum of Corroded Steel.

To study multi-fractal behavior of corroded steel surface, a range of fractal surfaces of corroded surfaces of Q235 steel were constructed by using the Weierstrass-Mandelbrot method under a high total...

Tunable all-optical plasmonic diode based on Fano resonance in nonlinear waveguide coupled with cavities.

Tunable all-optical plasmonic diode is proposed based on the Fano resonance in an asymmetric and nonlinear system, comprising metal-insulator-metal waveguides coupled with nanocavities. The spatial as...

Anomalous Diffusion in Fractal Globules.

The fractal globule state is a popular model for describing chromatin packing in eukaryotic nuclei. Here we provide a scaling theory and dissipative particle dynamics computer simulation for the therm...

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