Publications (54)
Large Enhancement of Ferro-Magnetism under Collective Strong Coupling of YBCO Nanoparticles
Anoop Thomas, Eloise Devaux, Kalaivanan Nagarajan +6
Light-matter strong coupling in the vacuum limit has been shown to enhance material properties over the past decade. Oxide nanoparticles are known to exhibit weak ferromagnetism du…
Optimal time-entropy bounds and speed limits for Brownian thermal shortcuts
LuÃs Barbosa Pires, Rémi Goerlich, Arthur Luna da Fonseca +4
By controlling in real-time the variance of the radiation pressure exerted on an optically trapped microsphere, we engineer temperature protocols that shortcut thermal relaxation w…
Subfemtonewton force fields measured with ergodic Brownian ensembles
Minghao Li, Oussama Sentissi, Stefano Azzini +3
We demonstrate that radiation pressure force fields can be measured and reconstructed with a resolution of fN (at a confidence level) using an ergodic ensemble of ov…
Coherence and aberration effects in surface plasmon polariton imaging
Martin Berthel, Quanbo Jiang, Camille Chartrand +4
We study theoretically and experimentally coherent imaging of surface plasmon polaritons using either leakage radiation microscopy through a thin metal film or interference microsc…
Quantum vacuum fluctuations
Serge Reynaud, Astrid Lambrecht, Cyriaque Genet +1
The existence of irreducible field fluctuations in vacuum is an important prediction of quantum theory. These fluctuations have many observable consequences, like the Casimir effec…
Chiral optical Local Density of States in spiral plasmonic cavity
Aline Pham, Martin Berthel, Quanbo Jiang Joel Bellessa +3
We introduce a new paradigm: the chiral electromagnetic local density of states (LDOS) in a spiral plasmonic nanostructure. In both classical and quantum regimes, we reveal using s…
Circular dichroism induction in WS2 by a chiral plasmonic metasurface
Fernando Lorén, Cyriaque Genet, Luis MartÃn-Moreno
We investigate the interaction between a monolayer of WS2 and a chiral plasmonic metasurface. WS2 possesses valley excitons that selectively couple with one-handed circularly polar…
Non-markovian polariton dynamics in organic strong coupling
Antoine Canaguier-Durand, Cyriaque Genet, Astrid Lambrecht +2
Strongly coupled organic systems are characterized by unusually large Rabi splittings, even in the vacuum state. They show the counter-intuitive feature of a lifetime of the lower…
Chiral near fields generated from plasmonic lattices
Antoine Canaguier-Durand, Cyriaque Genet
Plasmonic fields are usually considered non-chiral because of the transverse magnetic polarization of surface plasmon modes. We however show here that an optical lattice created fr…
Mechanical separation of chiral dipoles by chiral light
Antoine Canaguier-Durand, James A. Hutchison, Cyriaque Genet +1
We calculate optical forces and torques exerted on a chiral dipole by chiral light fields and reveal genuinely chiral forces in combining the chiral contents of both light field an…
Temperature dependence of the Casimir effect between metallic mirrors
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
We calculate the Casimir force and free energy for plane metallic mirrors at non-zero temperature. Numerical evaluations are given with temperature and conductivity effects treated…
Exploring Superconductivity under Strong Coupling with the Vacuum Electromagnetic Field
Anoop Thomas, Eloïse Devaux, Kalaivanan Nagarajan +8
Light-matter interactions have generated considerable interest as a means to manipulate material properties. Light-induced superconductivity has been demonstrated using pulsed lase…
Taming a Maxwell's demon for experimental stochastic resetting
Rémi Goerlich, Minghao Li, LuÃs Barbosa Pires +3
A diffusive process that is reset to its origin at random times, so-called stochastic resetting (SR), is an ubiquitous expedient in many natural systems . Yet, beyond its ability t…
Room Temperature Valley Polarization and Coherence in Transition Metal Dichalcogenide-Graphene van der Waals Heterostructures
Etienne Lorchat, Stefano Azzini, Thibault Chervy +5
Van der Waals heterostructures made of graphene and transition metal dichalcogenides (TMD) are an emerging platform for opto-electronic, -spintronic and -valleytronic devices that…
Highly efficient singular surface plasmon generation by achiral apertures
Quanbo Jiang, Aline Pham, Joel Bellessa +3
We report a highly efficient generation of singular surface plasmon (SP) field by an achiral plasmonic structure consisting of -shaped apertures. Our quantitative analysis base…
Coherent coupling of molecular resonators with a micro-cavity mode
Atef Shalabney, Jino George, James A. Hutchison +3
The optical hybridization of the electronic states in strongly coupled molecule-cavity systems have revealed unique properties such as lasing, room temperature polariton condensati…
Transverse spinning of a sphere in a plasmonic field
Antoine Canaguier-Durand, Cyriaque Genet
We evaluate optical forces and torques induced by a surface plasmon to a sphere of arbitrary size, i.e. beyond the point-like dipolar limit. Through a multipolar decomposition of t…
The Casimir force between real mirrors at non zero temperature
Serge Reynaud, Astrid Lambrecht, Cyriaque Genet
The Casimir force between dissipative metallic mirrors at non zero temperature has recently given rise to contradictory claims which have raised doubts about the theoretical expres…
Reciprocity and optical chirality
Aurélien Drezet, Cyriaque Genet
In this text we describe the role of optical chirality in the context of plasmonics. We clearly distinguish between 2D an 3D optical chirality and connect the problem with reciproc…
Optimal protocols and universal time-energy bound in Brownian thermodynamics
Yoseline Rosales-Cabara, Giovanni Manfredi, Gabriel Schnoering +3
We propose an optimization strategy to control the dynamics of a stochastic system transferred from one thermal equilibrium to another and apply it experimentally to a Brownian par…
Noise and ergodic properties of Brownian motion in an optical tweezer: looking at the crossover between Wiener and Ornstein-Uhlenbeck processes
Rémi Goerlich, Minghao Li, Samuel Albert +3
We characterize throughout the spectral range of an optical trap the nature of the noise at play and the ergodic properties of the corresponding Brownian motion of an overdamped tr…
Multiple Rabi Splittings under Ultra-Strong Vibrational Coupling
Jino George, Thibault Chervy, Atef Shalabney +4
From the high vibrational dipolar strength offered by molecular liquids, we demonstrate that a molecular vibration can be ultra-strongly coupled to multiple IR cavity modes, with R…
Miniature plasmonic wave plates
Aurelien Drezet, Cyriaque Genet, Thomas W. Ebbesen
Linear birefringence, as implemented in wave plates, is a natural way to control the state of polarization of light. We report on a general method for designing miniature planar wa…
Thermally limited force microscopy on optically trapped single metallic nanoparticles
Gabriel Schnoering, Yoseline Rosales-Cabara, Hugo Wendehenne +2
We propose and evaluate a new type of optical force microscope based on a standing wave optical trap. Our microscope, calibrated in-situ and operating in a dynamic mode, is able to…
Galilean relativity for Brownian dynamics and energetics
Minghao Li, Oussama Sentissi, Stefano Azzini +1
We study experimentally the impact of inertial reference frame changes on overdamped Brownian motion. The reference frame changes are implemented by inducing, with a laser, laminar…
Planar chirality and optical spin-orbit coupling for chiral Fabry-Perot cavities
Jérôme Gautier, Minghao Li, Thomas W. Ebbesen +1
We design, in a most simple way, Fabry-Perot cavities with longitudinal chiral modes by sandwiching between two smooth metallic silver mirrors a layer of polystyrene made planar ch…
Fano-type interpretation of red shifts and red tails in hole array transmission spectra
Cyriaque Genet, Martin P. van Exter, J. P. Woerdman
We present a unifying point of view which allows to understand spectral features reported in recent experiments with two-dimensional arrays of subwavelength holes in metal films. W…
Three-dimensional enantiomeric recognition of optically trapped single chiral nanoparticles
Gabriel Schnoering, Lisa V. Poulikakos, Yoseline Rosales-Cabara +3
We optically trap freestanding single metallic chiral nanoparticles using a standing-wave optical tweezer. We also incorporate within the trap a polarimetric setup that allows to p…
Compact antenna for efficient and unidirectional launching and decoupling of surface plasmons
Alexandre Baron, Eloïse Devaux, Jean-Claude Rodier +5
Controlling the launching efficiencies and the directionality of surface plasmon polaritons (SPPs) and their decoupling to freely propagating light is a major goal for the developm…
Microscopic analysis of spin-momentum locking on a geometric phase metasurface
Fernando Lorén, Gian L. Paravicini-Bagliani, Sudipta Saha +4
We revisit spin-orbit coupling in a plasmonic Berry metasurface comprised of rotated nanoapertures, which is known to imprint a robust far-field polarization response. We present a…
The Casimir force between rough metallic plates
Cyriaque Genet, Astrid Lambrecht, Paulo Maia Neto +1
The Casimir force between two metallic plates is affected by their roughness state. This effect is usually calculated through the so-called `proximity force approximation' which is…
Probing quantum effects with classical stochastic analogs
Rémi Goerlich, Giovanni Manfredi, Paul-Antoine Hervieux +2
We propose a method to construct a classical analog of an open quantum system, namely a single quantum particle confined in a potential well and immersed in a thermal bath. The cla…
The Casimir effect in the nanoworld
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
The Casimir effect is a force arising in the macroscopic world as a result of radiation pressure of vacuum fluctuations. It thus plays a key role in the emerging domain of nano-ele…
Reversible compression of an optical piston through Kramers dynamics
Gabriel Schnoering, Cyriaque Genet
We study the reversible crossover between stable and bistable phases of an over-damped Brownian bead inside an optical piston. The interaction potentials are solved developing a me…
Enantioselective optical trapping and characterization of all dielectric disorder-enabled chiral particles
Guilherme T. Moura, Tanja Schoger, Kainã G. Diniz +9
We trap submicroscopic silica spheres coated with randomly distributed titanium dioxide nanoparticles in optical tweezers with Laguerre-Gaussian modes and observe orbital dynamics…
A chiral route to pulling optical forces and left-handed optical torques
Antoine Canaguier-Durand, Cyriaque Genet
We analyze how chirality can generate pulling optical forces and left-handed torques by cross-coupling linear-to-angular momenta between the light field and the chiral object. In t…
Correlation between plasma and temperature corrections to the Casimir force
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
When comparing experimental results with theoretical predictions of the Casimir force, the accuracy of the theory is as important as the precision of experiments. Here we evaluate…
Force and torque on an electric dipole by spinning light fields
Antoine Canaguier-Durand, Aurélien Cuche, Cyriaque Genet +1
We calculate the optical force and torque applied to an electric dipole by a spinning light field. We find that the dissipative part of the force depends on the orbital energy flow…
Depolarization induced by subwavelength metal hole arrays
Cyriaque Genet, Erwin Altewischer, Martin P. van Exter +1
We present a symmetry-based theory of the depolarization induced by subwavelength metal hole arrays. We derive the Mueller matrices of hole arrays with various symmetries (in parti…
Casimir effect and vacuum energy
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
Vacuum fluctuations have observable consequences, like the Casimir force appearing between two mirrors in vacuum. This force is now measured with good accuracy and agreement with t…
Enhancement of the electron-phonon scattering induced by intrinsic surface plasmon-phonon polaritons
David Hagenmüller, Johannes Schachenmayer, Cyriaque Genet +2
We investigate light-matter coupling in metallic crystals where plasmons coexist with phonons exhibiting large oscillator strength. We demonstrate theoretically that this coexisten…
The Casimir force and the quantum theory of lossy optical cavities
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
We present a new derivation of the Casimir force between two parallel plane mirrors at zero temperature. The two mirrors and the cavity they enclose are treated as quantum optical…
Plasmonic lateral forces on chiral spheres
Antoine Canaguier-Durand, Cyriaque Genet
We show that the optical force exerted on a finite size chiral sphere by a surface plasmon mode has a component along a direction perpendicular to the plasmon linear momentum. We r…
Circular Dichroism without absorption in isolated chiral dielectric Mie particles
Rafael S. Dutra, Felipe A. Pinheiro, Diney S. Ether +3
We demonstrate that an effect phenomenologically analogous to circular dichroism can arise even for dielectric and isotropic chiral spherical particles. By analyzing the polarimetr…
Spin-momentum locking breakdown on plasmonic metasurfaces
Fernando Lorén, Cyriaque Genet, Luis MartÃn-Moreno
We present a scattering formalism to analyze the spin-momentum locking in structured holey plasmonic metasurfaces. It is valid for any unit cell for arbitrary position and orientat…
Spin-momentum locked polariton transport in the chiral strong coupling regime
Thibault Chervy, Stefano Azzini, Etienne Lorchat +6
We demonstrate room temperature chiral strong coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. In this regime,…
Directional and singular surface plasmon generation in chiral and achiral nanostructures demonstrated by Leakage Radiation Microscopy
Quanbo Jiang, Aline Pham, Martin Berthel +4
In this paper, we describe the implementation of leakage radiation microscopy (LRM) to probe the chirality of plasmonic nanostructures. We demonstrate experimentally spin-driven di…
Chiral thermodynamics in tailored chiral optical environments
Gabriel Schnoering, Samuel Albert, Antoine Canaguier-Durand +1
We present an optomechanical model that describes the stochastic motion of an overdamped chiral nanoparticle diffusing in the optical bistable potential formed in the standing-wave…
Large optical nonlinearity enhancement under electronic strong coupling
Kuidong Wang, Marcus Seidel, Kalaivanan Nagarajan +3
Nonlinear optical responses provide a powerful way to understand the microscopic interactions between laser fields and matter. They are critical for plenty of applications, such as…
Harvesting information to control non-equilibrium states of active matter
Rémi Goerlich, LuÃs Barbosa Pires, Giovanni Manfredi +2
We propose to use a correlated noise bath to drive an optically trapped Brownian particle that mimics active biological matter. Thanks to the flexibility and precision of our setup…
The Casimir force between metallic mirrors
Astrid Lambrecht, Cyriaque Genet, Serge Reynaud
In order to compare recent experimental results with theoretical predictions we study the influence of finite conductivity of metals on the Casimir effect. The correction to the Ca…
Generating far-field orbital angular momenta from near-field optical chirality
Yuri Gorodetski, Aurélien Drezet, Cyriaque Genet +1
We demonstrate that nanostructures carefully designed on both sides of a thin suspended metallic membrane couple light into a chiral near field and transmit vortex beams through a…
Electromagnetic vacuum fluctuations, Casimir and Van der Waals forces
Cyriaque Genet, Francesco Intravaia, Astrid Lambrecht +1
Electromagnetic vacuum fluctuations have observable consequences, like the Casimir force between mirrors in vacuum. This force is now measured with good accuracy and agreement with…
Consistent thermodynamics reconstructed from transitions between nonequilibrium steady-states
Rémi Goerlich, Benjamin Sorkin, Dima Boriskovsky +4
Constructing a thermodynamic framework for nonequilibrium systems remains a major challenge, as quantities such as temperature and free energy often become ambiguous when inferred…