Publications associées à Electromagnetic wave propagation in media consisting of dispersive metamaterials

Publications associées (29)

The 2024 phononic crystals roadmap

Over the past 3 decades, phononic crystals experienced revolutionary development for understanding and utilizing mechanical waves by exploring interaction between mechanical waves and structures. With the significant advances in manufacture technologies fr ...

IOP Publishing Ltd2025

Metamaterial-enabled localization of electrostatic discharges using time reversal

Elias Per Joachim Le Boudec

Protection against electrostatic discharges requires knowledge of the discharge-current path. Thanks to the time-reversal technique combined with a GHz-range resonant metalens, we present an experimental gateway to imaging subwavelength interference source ...

Institute of Electrical and Electronics Engineers Inc.2024

Time-reversed electromagnetic fields in anisotropic media

Farhad Rachidi-Haeri, Elias Per Joachim Le Boudec

Electromagnetic time reversal is commonly used for field imaging and focusing. This Letter builds upon the concept of the time -reversal cavity, which constitutes the main theoretical framework of time reversal theory. We study the behavior of the fields u ...

Optica Publishing Group2024

Dual-Polarized SIW Slot Antenna Using ENZ Metamaterial for 5G and mmWave Applications

Romain Christophe Rémy Fleury, Amir Jafargholi

This paper presents a broadband dual-polarized substrate integrated waveguide (SIW) slot antenna. It is analytically shown that by decreasing the permittivity of a dielectricloaded slot antenna, the resulting bandwidth increases significantly, where the wi ...

IEEE2023

Fully reconfigurable MEMS-based second-order coupled-resonator optical waveguide (CROW) with ultra-low tuning energy

Niels Quack, Alain Yuji Takabayashi

Integrated microring resonators are well suited for wavelength-filtering applications in optical signal processing, and cascaded microring resonators allow flexible filter design in coupledresonator optical waveguide (CROW) configurations. However, the imp ...

Optica Publishing Group2023

Resonators with tailored optical path by cascaded-mode conversions

Ileana-Cristina Benea-Chelmus

Optical resonators enable the generation, manipulation, and storage of electromagnetic waves. The physics underlying their operation is determined by the interference of electromagnetic waves, giving rise to the resonance spectrum. This mechanism causes th ...

Nature Portfolio2023

Harmonic decomposition of the trace of 1D transfer matrices in layered media

Antonio Joaquin Garcia Suarez

The Transfer Matrix formalism is ubiquitous when it comes to study wave propagation in various stratified media, applications ranging from Seismology to Quantum Mechanics. A relation between variables at two points in two different layers can be establishe ...

2022

Plasma-based Electroacoustic Actuator for Broadband Sound Absorption

Stanislav Sergeev

Environmental noise, mostly related to human activities, has an immense impact on public health. The development of noise reduction technologies is paramount in addressing this problem. Because of practical and economic reasons, a compact, broadband, light ...

EPFL2022

Fast global spectral methods for three-dimensional partial differential equations

Daniel Kressner, Christoph Max Strössner

Global spectral methods offer the potential to compute solutions of partial differential equations numerically to very high accuracy. In this work, we develop a novel global spectral method for linear partial differential equations on cubes by extending th ...

OXFORD UNIV PRESS2022

Microwave or millimeter wave passive components or devices

Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam

A passive device comprising a hollow waveguide including first and second wall structures extending in a guiding direction, an interconnecting base extending between the wall structures and an enclosure extending between the wall structures, the enclosure ...

2021

Optimizing and Implementing Light Trapping in Thin-Film, Mesostructured Photoanodes

Sophia Haussener, Silvan Suter

Stable semiconductor photoelectrodes for water splitting often exhibit long absorption lengths and poor properties for the efficient separation and transport of photogenerated charges. We propose a combination of resonant and geometric light trapping for t ...

AMER CHEMICAL SOC2020

Theory of intrinsic propagation losses in topological edge states of planar photonic crystals

Juan Pablo Vasco Cano

Using a semianalytic guided-mode expansion technique, we present theory and analysis of intrinsic propagation losses for topological photonic crystal slab waveguide structures with modified honeycomb lattices of circular or triangular holes. Although conve ...

AMER PHYSICAL SOC2020

Approximate cloaking for electromagnetic waves via transformation optics: cloaking vs infinite energy

Hoài-Minh Nguyên, Xuan Loc Tran

2019

Integrated Gallium Phosphide Photonics

Katharina Schmeing

The integration of new materials mediating light-matter interaction in nanoscale devices is a persistent goal in nanophotonics. One of these materials is Gallium phosphide, which offers an attractive combination of a high refractive index (n=3.05 at a wave ...

EPFL2019

Multifunctional Plasmonic Metasurfaces for Novel Spectral and Spatial Applications

Chen Yan

Intensive developments of plasmonic nanomaterials over recent decades have inspired appealing applications in biosensing, optical trapping, fluorescence enhancement and light harvesting in solar cells. These nanostructures supporting unique light-matter in ...

EPFL2017

Wave propagation in the vicinities of rock fractures under obliquely incident wave

Lyesse Laloui, Jian Zhao, Yang Zou

Though obliquely incident plane wave across rock fractures has been extensively investigated by theoretical analysis, the quantitative identification of each wave emerged from fractures has not been achieved either in numerical simulation or laboratory exp ...

Springer Verlag2016

Seismic response of adjacent filled parallel rock fractures with dissimilar properties

Jian Zhao, Wei Wu

The purpose of this study is to analytically predict and to experimentally investigate the seismic response of adjacent filled parallel rock fractures with dissimilar properties (e.g., fracture thickness and stiffness). The time-domain recursive method is ...

Elsevier2013

Terahertz passive components for Dynamic Nuclear Polarization Nuclear Magnetic Resonance applications

Emile Jacques de Rijk

Terahertz radiation, THz = 1012 Hz, refers to electromagnetic signals with frequencies in the range of 0.3 to 3 THz, and wavelengths between 1 and 0.1 mm. This part of the electromagnetic spectrum is located in between millimeter waves at lower frequencies ...

EPFL2013

Tunable and reconfigurable multi-tap microwave photonic filter based on dynamic Brillouin gratings in fibers

Luc Thévenaz, Sang Hoon Chin, Nikolay Primerov

We propose and experimentally demonstrate new architectures to realize multi-tap microwave photonic filters, based on the generation of a single or multiple dynamic Brillouin gratings in polarization maintaining fibers. The spectral range and selectivity o ...

Optical Society of America2012

Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour

Jian Zhao, Gaofeng Zhao, Jianbo Zhu

Rock joints are often filled with weak medium, for example, saturated clay or sand, of viscoelastic nature. Their effects on wave propagation can be modelled as displacement and stress discontinuity conditions. The viscoelastic behaviour of the filled join ...

Blackwell Publishing Ltd, Oxford2011