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ToPSeCRET SIGNED

Topological properties of sub-wavelength crystalline metamaterials

Total Cost €

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EC-Contrib. €

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Partnership

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Project "ToPSeCRET" data sheet

The following table provides information about the project.

Coordinator
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE 

Organization address
address: BATIMENT CE 3316 STATION 1
city: LAUSANNE
postcode: 1015
website: www.epfl.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Total cost 187˙419 €
 EC max contribution 187˙419 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2017
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-06-01   to  2023-01-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE CH (LAUSANNE) coordinator 187˙419.00

Map

 Project objective

Waves, as privileged carriers of information, are an inextricable part of our world, so that controlling their propagation is a crucial stake. Scientists interest for wave-matter interactions then rose, resulting in devising two sorts of composite media: wavelength (L) scaled photonic crystals (PC) based on wave-structure interactions and deep sub-L metamaterials (MM) focusing on wave-composition ones. Due to their typically different spatial scales, mechanisms of wave propagation in PC and MM were considered distinct. Notably, opposite to PC, MM’s spatial structure is always neglected by standard homogenization approaches. Yet, using a pioneering approach, I recently evidenced the significant role of multiple scattering at sub-L scales in locally resonant MM. This led to defining the novel concept of metamaterial crystals (MMCs): resonant metamaterials with sub-L crystalline structures for which macroscopic properties stem from both resonant composition and spatial structure, opening new perspectives for sub-L wave propagation control. Perhaps one of the most exciting crystalline-driven effect that can be exploited is topological order due to the possibility to achieve backscattering-immune, robust, or non-reciprocal waveguiding. Yet most of previous proposals are based on L-scaled PC. Hence, achieving topological phases at sub-L scales and the associated new physics is still left widely unexplored, due to the largely underestimated role of multiple scattering in MMCs. Following my previous work, the ToPSeCRET project aims at investigating TOpological Properties of Sub-L scaled CRystalline mETamaterials while (i) providing new theoretical tools as well as an innovative deep physical understanding of topological non-trivial properties in terms of wave-matter interactions and (ii) designing a new class of sub-L topological MMC that will be implemented using different wave platforms (from microwaves to elastic waves).

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