120 citations · 238 across the 14 of their papers we have counts for
14 papers
Synthesis of hybrid gold-protein nanobioconjugates with strongly enhanced circular dichroism
Yoann Prado, Victoire Ho, Maud Virolle +7
Controlling chiral light-matter interactions with nanophotonics is a powerful strategy for amplifying molecular circular dichroism (CD) beyond its natural limits. Here, we present…
Complete design of a fully integrated graphene-based compact plasmon coupler for the infrared
Aswani Natarajan, Guillaume Demésy, Gilles Renversez
A fully integrated waveguide-based, efficient surface plasmon coupler composed of a realistic non-tapered dielectric waveguide with graphene patches and sheet is designed and optim…
Physically Agnostic Quasinormal Mode Expansion in Time Dispersive Structures:from Mechanical Vibrations to Nanophotonic Resonances
André Nicolet, Guillaume Demésy, Frédéric Zolla +3
Resonances, also known as quasi normal modes (QNM) in the non-Hermitian case, play an ubiquitous role in all domains of physics ruled by wave phenomena, notably in continuum mechan…
Resonant multi-dielectric coverslip for enhanced total internal reflection fluorescence microscopy
Yousra Toumi, Anita Mouttou, Fabien Lemarchand +7
Multi-dielectric coated coverslip can be designed to reach large optical field enhancements when working under proper illumination conditions and in total internal reflection. In a…
True Circular Dichroism in Optically Active Achiral Metasurfaces and Its Relation to Chiral Near-Fields
Mathieu Nicolas, Per Magnus Walmsness, Jayeeta Amboli +6
Optically active achiral metasurfaces offer a promising way to detect chiral molecules based on chiroptic methods. The combination of plasmonic enhanced circular dichroism and reve…
Electromagnetic cloak design with mono-objective and bi-objective optimizers: seeking the best tradeoff between protection and invisibility
Ronald Aznavourian, Guillaume Demesy, Sébastien Guenneau +1
We revisit the design of cloaks, without resorting to any geometric transform. Cancellation techniques and anomalous resonances have been applied for this purpose. Instead of a ded…
A continuous family of Exact Dispersive Quasi-Normal Modal (DQNM) Expansions for dispersive photonic structures
Minh Duy Truong, André Nicolet, Guillaume Demésy +1
In photonics, Dispersive Quasi-Normal Modes (DQNMs) refer to optical resonant modes, solutions of spectral problems associated with Maxwell's equations for open photonic structures…
Quasinormal mode solvers for resonators with dispersive materials
P. Lalanne, W. Yan, A. Gras +16
Optical resonators are widely used in modern photonics. Their spectral response and temporal dynamics are fundamentally driven by their natural resonances, the so-called quasinorma…
Photonics in highly dispersive media: The exact modal expansion
Frédéric Zolla, André Nicolet, Guillaume Demésy
We present exact modal expansions for photonic systems including highly dispersive media. The formulas, based on a simple version of the Keldysh theorem, are very general since bot…
Scattering matrix of arbitrarily shaped objects: Combining Finite Elements and Vector Partial Waves
Guillaume Demésy, Brian Stout, Jean-Claude Auger
We demonstrate the interest of combining Finite Element calculations with the Vector Partial Wave formulation (used in T-matrix and Mie theory) in order to characterize the electro…
Design of metallic nanoparticles gratings for filtering properties in the visible spectrum
Y. Brûlé, G. Demésy, A. -L. Fehrembach +8
Plasmonic resonances in metallic nanoparticles are exploited to create efficient optical filtering functions. A Finite Element Method is used to model metallic nanoparticles gratin…
Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light
Benjamin Vial, Frédéric Bedu, Hervé Dallaporta +6
We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enh…
Finite Element Method (Chapter from "Gratings: Theory and Numeric Applications")
Guillaume Demésy, Frédéric Zolla, André Nicolet +1
In this chapter, we demonstrate a general formulation of the Finite Element Method allowing to calculate the diffraction efficiencies from the electromagnetic field diffracted by a…
Revolution analysis of three-dimensional arbitrary cloaks
Guillaume Dupont, Sébastien Guenneau, Stefan Enoch +4
We extend the design of radially symmetric three-dimensional invisibility cloaks through transformation optics to cloaks with a surface of revolution. We derive the expression of t…