Yoann Brûlé
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View article: High‐Endurance and Energy‐Efficient All‐Optical Programming of Scalable Silicon Waveguides with Integrated Phase‐Change Material Patches
High‐Endurance and Energy‐Efficient All‐Optical Programming of Scalable Silicon Waveguides with Integrated Phase‐Change Material Patches Open
With the rise of optical computing, phase‐change materials (PCM) are attractive candidates for implementing programmable optical functionalities in photonic circuits. Integrating them as tunable media in photonic waveguides appears to be a…
View article: Gold Nanorod Growth and Etching Activated by Femtosecond Irradiation and Surface Plasmon Resonance
Gold Nanorod Growth and Etching Activated by Femtosecond Irradiation and Surface Plasmon Resonance Open
International audience
View article: Compact Implementation of a 1-Bit Adder by Coherent 2-Beam Excitation of a Single Plasmonic Cavity
Compact Implementation of a 1-Bit Adder by Coherent 2-Beam Excitation of a Single Plasmonic Cavity Open
We\ndemonstrate experimentally the dual beam optical drive of an\ninterconnect-free 2-input, 2-output 1-bit adder implemented inside\na single gold plasmonic cavity, focused ion milled in an ultrathin\nsingle crystalline gold microplate. T…
View article: Dispersive perfectly matched layers and high-order absorbing boundary conditions for electromagnetic quasinormal modes
Dispersive perfectly matched layers and high-order absorbing boundary conditions for electromagnetic quasinormal modes Open
Resonances, also known as quasinormal modes (QNMs) in the non-Hermitian case, play a ubiquitous role in all domains of physics ruled by wave phenomena, notably in continuum mechanics, acoustics, electrodynamics, and quantum theory. The non…
View article: Compact implementation of an all-optical 1-bit full adder by coherent excitation of a single 3-µm<sup>2</sup> plasmonic cavity
Compact implementation of an all-optical 1-bit full adder by coherent excitation of a single 3-µm<sup>2</sup> plasmonic cavity Open
In contrast to the high performances of long-range, high-speed optical information transfer, optical information processing remains outperformed by electronic microprocessing. The two mains reasons are the lack of gain medium that hampers …
View article: Generation and Control of Coherent Terahertz Phonons in Silicon Metasurfaces
Generation and Control of Coherent Terahertz Phonons in Silicon Metasurfaces Open
Semiconductor nanostructures are used in many applications, from electronics to nanophotonics to cite just a few, and most of these applications are based on silicon or silicon‐related technologies. With the miniaturization of these nanosc…
View article: Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures
Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures Open
We design planar silicon antennas for controlling the emission rate of magnetic or electric dipolar emitters. Evolutionary algorithms coupled to the Green Dyadic Method lead to different optimized geometries which depend on the nature and …
View article: Coherent two-beam steering of delocalized nonlinear photoluminescence in a plasmon cavity
Coherent two-beam steering of delocalized nonlinear photoluminescence in a plasmon cavity Open
We aim at controlling the spatial distribution of nonlinear photoluminescence in a shaped micrometer-size crystalline gold flake. Interestingly, the underlying surface plasmon modal landscape sustained by this mesoscopic structure can be a…
View article: Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures
Magnetic and electric Purcell factor control through geometry optimization of high index dielectric nanostructures Open
We design planar silicon antennas for controlling the emission rate of magnetic or electric dipolar emitters. Evolutionary algorithms coupled to the Green Dyadic Method lead to different optimized geometries which depend on the nature and …
View article: Kernel formalism applied to Fourier-based wave-front sensing in presence of residual phases
Kernel formalism applied to Fourier-based wave-front sensing in presence of residual phases Open
In this paper, we describe Fourier-based wave-front sensors (WFSs) as linear integral operators, characterized by their kernel. In the first part, we derive the dependency of this quantity with respect to the WFS's optical parameters: pupi…
View article: Plasmonic nanostructures array with correlated disorder for augmented reality
Plasmonic nanostructures array with correlated disorder for augmented reality Open
International audience
View article: Correlated Disordered Plasmonic Nanostructures Arrays for Augmented Reality
Correlated Disordered Plasmonic Nanostructures Arrays for Augmented Reality Open
International audience
View article: Two-dimensional grating for narrow-band filtering with large angular tolerances
Two-dimensional grating for narrow-band filtering with large angular tolerances Open
A two-dimensional periodic sub-wavelength array of vertical dielectric cylinders on a glass substrate is studied numerically using three different electromagnetic approaches. It is shown that such structure can present a narrow-band spectr…
View article: Calculation and analysis of the complex band structure of dispersive and dissipative two-dimensional photonic crystals
Calculation and analysis of the complex band structure of dispersive and dissipative two-dimensional photonic crystals Open
Numerical calculation of modes in dispersive and absorptive systems is\nperformed using the finite element method. The dispersion is tackled in the\nframe of an extension of Maxwell's equations where auxiliary fields are added\nto the elec…
View article: Design of metallic nanoparticle gratings for filtering properties in the visible spectrum
Design of metallic nanoparticle gratings for filtering properties in the visible spectrum Open
Plasmonic resonances in metallic nanoparticles are exploited to create efficient optical filtering functions. A Finite Element Method is used to model metallic nanoparticles gratings. The accuracy of this method is shown by comparing numer…
View article: Surface plasmon hurdles leading to a strongly localized giant field enhancement on two-dimensional (2D) metallic diffraction gratings
Surface plasmon hurdles leading to a strongly localized giant field enhancement on two-dimensional (2D) metallic diffraction gratings Open
An extensive numerical study of diffraction of a plane monochromatic wave by a single gold cone on a plane gold substrate and by a periodical array of such cones shows formation of curls in the map of the Poynting vector. They result from …