Concept

Dispersion (mécanique ondulatoire)

Publications associées (446)

Solitary waves in longitudinally wrinkled and creased helicoids

Elastic ribbons subjected to twist and stretch handle multiple morphological instabilities, amongst others, the longitudinally wrinkled and creased helicoids are investigated in the present paper as promising periodic nonlinear waveguides. Modeling the rib ...

Elsevier2017

Detuning-dependent properties and dispersion-induced instabilities of temporal dissipative Kerr solitons in optical microresonators

Tobias Kippenberg, Maxim Karpov, Hairun Guo, Erwan Guillaume Albert Lucas, John David Jost

Temporal-dissipative Kerr solitons are self-localized light pulses sustained in driven nonlinear optical resonators. Their realization in microresonators has enabled compact sources of coherent optical frequency combs as well as the study of dissipative so ...

Amer Physical Soc2017

Strong Coupling Cavity QED with Gate-Defined Double Quantum Dots Enabled by a High Impedance Resonator

Pasquale Scarlino

The strong coupling limit of cavity quantum electrodynamics (QED) implies the capability of a matterlike quantum system to coherently transform an individual excitation into a single photon within a resonant structure. This not only enables essential proce ...

2017

Intermode Breather Solitons in Optical Microresonators

Tobias Kippenberg, Michael Wolfgang Geiselmann, Junqiu Liu, Maxim Karpov, Hairun Guo, Martin Hubert Peter Pfeiffer, Erwan Guillaume Albert Lucas, Miles Henry Anderson, John David Jost

Dissipative solitons can be found in a variety of systems resulting from the double balance between dispersion and nonlinearity, as well as gain and loss. Recently, they have been observed to spontaneously form in Kerr nonlinear microresonators driven by a ...

2017

Electromagnetic Inspired Acoustic Metamaterials

Seyyed Hussein Seyyed Esfahlani

This thesis deals with electromagnetic inspired acoustic metamaterials, enabling sound-matter interactions in different wave scenarios that include propagation, guided-waves, radiation, refraction, reflection and transmission. To this end, a particular emp ...

EPFL2017

Utilizing electromagnetically induced transparency in InAs quantum dots for all-optical transistor design

Hamed Sattari

We propose a multilayer medium with semiconductor quantum dot nano-structures as a defect layer for all-optical control of the 1.55 mu m probe beam. The effect of the coupling field and incoherent pump on absorption and dispersion properties of the quantum ...

Optical Soc Amer2017

Parametrically Tunable Soliton-Induced Resonant Radiation by Three-Wave Mixing

Hairun Guo

We show that a temporal soliton can induce resonant radiation by three-wave mixing nonlinearities. This constitutes a new class of resonant radiation whose spectral positions are parametrically tunable. The experimental verification is done in a periodical ...

Amer Physical Soc2017

Identification of microscopic domain wall motion from temperature dependence of nonlinear dielectric response

Tomas Sluka, Pavel Mokry

It is known that the permittivity of ferroelectric polydomain films and single crystals in weak electric fields is strongly enhanced by the reversible movement of pinned domain walls. Two mechanisms of the movement exist: first, the bending of free segment ...

Amer Inst Physics2017

A Longitudinal Study of Neurite Orientation Dispersion and Density Imaging in Relapsing-Remitting Multiple Sclerosis

Jean-Philippe Thiran, David Paul Roger Romascano, Elda Fischi Gomez, Alessandro Daducci, Cristina Granziera, Gunnar Krüger, Guillaume Bonnier

We explored the sensitivity of a novel diffusion MRI method i.e. “Neurite orientation dispersion and density imaging”, to detect and characterize brain microstructure alterations in relapsing-remitting multiple sclerosis patients that we followed up over 2 ...

2017

Multi-material stretchable optical, electronic and optoelectronic fibers and ribbons composites via thermal drawing

Fabien Sorin, Wei Yan, Alexis Gérald Page, Yunpeng Qu, Dang Tùng Nguyen, Marco Volpi

The present invention concerns a thermal drawing method for forming fibers, wherein said fibers are made at least from a stretchable polymer. The present invention also concerns drawn fibers made by the process. ...

2017

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search