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Welcome to the Nachos team homepage!

Nachos is a joint project-team between Inria, CNRS and the University of Nice/Sophia Antipolis
via the J.A. Dieudonné Mathematics Laboratory (UMR 7351).

Job openings

Research and development engineer (fixed-term)
Exascale enabled finite element solvers for nanophotonics
Duration: 16 months

Research and development engineer (fixed-term)
Development and application of high order finite element solvers for nanoscale light-matter interactions
Duration: 12 months

News - October 2018

Welcome to Théophile Chaumont-Frelet who has been awarded a Junior research scientist position in the team!

Welcome to Mahmoud Elsawy who joined the team as a postodtcoral fellow!

Paper entitled "Simulation of three-dimensional nanoscale light interaction with spatially dispersive metals using a high order curvilinear DGTD method" by N. Schmitt, C. Scheid, J. Viquerat and S. Lanteri
J. Comput. Phys., Vol. 373, pp. 210–229 (2018)

News - September 2018

Congratulations to Nikolaï Schmitt who defended his doctoral thesis on September 27!

Paper entitled "Fitting experimental dispersion data with a simulated annealing method for nano-optics applications" by J. Viquerat
J. of Nanophotonics, Vol. 12, No. 3, 036014 (2018)

News - March 2018

Kick-off meeting of the Math-Amsud PHOTOM - Photovoltaic Solar Devices
in Multiscale Computational Simulations - project
March 13-15, LNCC, Petrópolis, Brazil

New high order Hybridized Discontinuous Solver (HDG) for frequency-domain plasmonics in 3D - Work done in the context of the postdoctoral project of Mostafa Javadzadeh Moghtader


Scattering of a plane wave by a 50 nm gold nanosphere: magnitude of E field at frequencies 1070 THz (left), 1185 THz (middle) and 1300 THz (right)

Scattering of a plane wave by a 50 nm gold nanosphere: scattering (left) and absorption (right) cross sections for calculations based on a HDG method with quadratic interpolation of the EM field components

News - February 2018

Congratulations to Fréderic Valentin who has been awarded an Inria International Chair for the period 2018-2022! The research project that he will lead during this period aims at devising innovative multiscale numerical algorithms for the simulation of wave-matter interaction at the nanoscale. This topic is also at the heart of the Math-Amsud PHOTOM - Photovoltaic Solar Devices
in Multiscale Computational Simulations - project that has started in Januray 2018 for a duration of 2 years, and which involves researchers from Brazil, Chile and France.

Papers on reduced-order modeling based on Proper Orthogonal Decomposition for time-domain electromagnetics in the context of a collaborative work with researchers from UESTC, Chengdu, China.
K. Li, T.-Z. Huang, L. Li and S. Lanteri
A reduced-order DG formulation based on POD method for the time-domain Maxwell’s equations in dispersive media
J. Comput. Appl. Math., Vol. 336, pp. 249-266 (2018)
K. Li, T.-Z. Huang, L. Li, S. Lanteri, L. Xu and B. Li
A reduced-order discontinuous Galerkin method based on POD for electromagnetic simulation
IEEE Trans. Ant. Propag., Vol. 66, No. 1, pp. 242-254 (2018)

News - May 2017

High order DGTD method based on exponential time integrators for modeling
3D transient multiscale electromagnetic problems
More details - Work done in the context of the PhD project of Hao Wang
H. Wang, L. Xu, B. Li, S. Descombes and S. Lanteri
A new family of exponential-based high order DGTD methods for modelling 3D transient multiscale electromagnetic problems
IEEE Trans. Ant. Propag., Vol. 65, No. 11, pp. 5960-5974 (2017)

News - February 2017

Paper entitled "Analysis of a generalized dispersive model coupled to a DGTD method with application to nanophotonics" by S. Lanteri, C. Scheid and J. Viquerat
SIAM J. Sci. Comp., Vol. 39, No. 3, pp. A831–A859 (2017)

Simulation of light trapping in thin-film solar cells with textured layers
More details - Work done in the context of the PhD project of Alexis Gobé

News - January 2017

First review meeting and workshop of the HPC4E project
January 30-February 2, 2017 - Inria Sophia Antipolis-Méditerranée

New DGTD solver for the 3D time-domain Maxwell equations coupled to a linearized non-local Drude model
More details - Work done in the context of the PhD project of Nikolai Schmitt