Laboratory for Photonics and Nanostructures
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Devices Physics > Nanophotonics and plasmonic devices
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Surface plasmons polaritons (SPP) are surface waves bound to metal/dielectric interfaces that arise from the interaction between light and mobile surface charges. With the recent advances in nanofabrication, there has been a renewed interest in exploiting the optical properties of metals structured at the nanoscale. They have allowed new classes of materials to emerge. Plasmonic structures enable light propagation and light confinement beyond the diffraction limit, and metamaterials provide a route to designing artificial materials with any (positive, negative, anisotropic...) refractive index. They offer new possibilities for manipulating light, and can be integrated in new devices for photovoltaics, optoelectronics, and infrared instrumentation tools. Our aim is to investigate the fundamental properties of metal and metal-semiconductor nanostructures, and to design, fabricate and demonstrate new devices for efficient light absorption, propagation, and emission in the (near-, mid-, and far-) infrared wavelength range.

1D and 2D plasmonic crystals, nanostructured plasmonic waveguides

Metallic films perforated by an array of 1D or 2D periodical subwavelength apertures play the role of plasmonic crystals. The apertures allow coupling mechanisms between surface plasmon waves. The dispersion curves of 1D and 2D plasmonic crystals have been characterized by high-resolution optical transmission measurements, and compared to numerical results. These studies have revealed new properties of anisotropic 2D plasmonic crystals and nanostructured (1D) thin plasmonic waveguides.

PHYDIS 2D anisotropic plasmonic crystals

A coupling between modes propagating in two nearly orthogonal directions (forming an angle of 77° in this sample) is evidenced for a rectangular array of holes perforated in a gold film. The coupling results in a narrow band gap for nonzero wavevectors and in a coupled mode with a large density of states and a strong radiative damping. We show that the gap location in the (ω,k) space can be precisely tuned by changing the 2D periods.

PHYDIS
PHYDISPHYDIS Thin nanostructured plasmonic waveguides: tailoring the radiative and non-radiative properties

We show that the radiative emission can be enhanced or inhibited in nanostructured thin-film plasmonic waveguides by a slight modification of the refractive index of the substrate (δn/n~1%), allowing to control the propagation regime of surface plasmon waves along the air/metal interface (a low-loss propagation regime, and a radiative propagation regime).

PHYDIS
PHYDIS Surface modes on nanostructured metallic surfaces (collab. Christophe Sauvan and Philippe Lalanne (LCFIO))

An analytical model that provides closed-form expressions for the dispersion relation of surface modes supported by metal/dielectric interfaces perforated by 2D arrays of subwavelength apertures has been derived.

PHYDIS

Squeezing light absorption in nanoscale metal-semiconductor-metal structures

PHYDIS Efficient light confinement and absorption in MSM nanostructures (photodetectors, photovoltaics,...)

We have proposed new concepts for efficient light absorption in nanoscale metal-semiconductor-metal structures. They have been analyzed both theoretically and experimentally, leading to the first theoretical and experimental demonstration of efficient absorption (10-15%) in nanoscopic (40nm x 100nm) GaAs wires.

PHYDIS

Versatile and efficient optical filters for multispectral IR imagery

PHYDIS Band-pass filters for the mid-infrared wavelength range (collab. R. Haïdar (ONERA/DOTA))

We have achieved the fabrication of large-area metallic and dielectric drilled membranes. Free-standing metallic gratings have been designed and fabricated for mid-infrared filtering. They show quasi-total resonant transmission (>90%), and can act as efficient optical band-pass filters with tunable bandwidth.

PHYDIS

Among the other projects (collaborations)...

Highly directional light sources via SPP excitation

Broadband diffractive optics

Coupled 1D gold cavities

PHYDIS

PHYDIS

PHYDIS

Collab. François Marquier, Marine Laroche and Jean-Jacques Greffet (LFCIO)

Collab. Philippe Lalanne (LCFIO), Mane-Si-Laure Lee and Brigitte Loiseaux (TRT)

Collab. Aude Barbara and Pascal Quémerais (Institut Néel)

Development of new tools

Our work is based on the development of new tools for sample fabrication, experiments and modelling.

Original fabrication processes
PHYDIS

  • Double lift-off technique for high aspect ratio metallic nanostructures.
  • Nanostructured membranes for wide-area dielectric and metallic free-standing gratings.

Versatile optical setup
PHYDIS

Reflection and transmission measurements (0.5-16μm, 0°-270°) with angular and spectral resolutions as low as 0.3° and 0.5 cm-1, respectively.

Computational methods

We are developing new tools around really rigorous Maxwell electromagnetic equations formulation (topological expressions in terms of E, B, D, H) delaying the numerical approximations when we write the physical linear constitutive equations between (E, B) and (D, H).

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Puce Highlights

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Puce Members

Contacts

 Cattoni Andrea  (+33) 1 69 63 60 48  
 Collin Stephane  (+33) 1 69 63 61 45  
 Pardo Fabrice  (+33) 1 69 63 61 48  
 Pelouard Jean-Luc  (+33) 1 69 63 61 47  

And also...

 Portier Benjamin  (+33) 1 69 63 62 47  
 Sakat Émilie  (+33) 1 69 63 63 53  
 Tuambilangana Christelle  (+33) 1 69 63 63 53  
 Bouchon Patrick  (+33) 1 69 63 63 00  
 Vincent Gregory  (+33) 1 69 63 61 58  
 Bardou Nathalie  (+33) 1 69 63 61 43  
 Cambril Edmond  (+33) 1 69 63 60 67  
 Dupuis Christophe  (+33) 1 69 63 61 42  
 Ferlazzo Laurence  (+33) 1 69 63 60 70  
 Lemaitre Aristide  (+33) 1 69 63 60 72  

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Puce Patents

  • Modulateur terahertz, S. Vassant, F. Pardo, F. Marquier, A. Archambault, J.-J. Greffet, J.-L. Pelouard, FR 1151189, (2011-02-14)
  • Cellule de detection terahertz, S. Vassant, F. Pardo, F. Marquier, A. Archambault, J.-J. Greffet, J.-L. Pelouard, FR 1151195, (2011-02-14)
  • MSM type photodetection device with resonant cavity comprising a mirror with a network of metallic electrodes, F. Pardo, S. Collin, J.-L. Pelouard, FR 2842945, (2002-07-25)
  • Vertical metal-semiconductor microresonator photodetecting device and production method thereof, F. Pardo, S. Collin, R. Teissier, J.-L. Pelouard, FR 2803950, (2000-01-14)
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Puce Publications

Publication in journals
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Puce Contracts and projects

    Puce Incentive Projects of the Ministry of Research

      PLASMONS : Nanostructures Rayonnantes: Vers un laser à plasmons de surface

      Reference contract : ACI Nanosciences 04 5 448
      LPN leader(s): Jean-Luc Pelouard
      Main goals : Exciter un plasmon de surface directement par injection d'électrons. (2004-2007)

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    Puce Other National Projects

      METAPHOTONIQUE : Photonique guidée à base de métamatériaux

      Reference contract : ANR VERSO
      LPN leader(s): Jean-Luc Pelouard, Stephane Collin
      Main goals : Exploration des propriétés des métamatériaux en optique guidée (2009-2012)

      LAPSUS : Laser à Phonons de SUrfaceS

      Reference contract : ANR PNANO
      LPN leader(s): Fabrice Pardo
      Main goals : Excitation des phonons polaritons de surface; Les faire rayonner au moyen d'un réseau de couplage optimal (2008-2011)

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Puce Past and current Internship Training

Post-docs


  • Optical nanoantennas for IR Photodetectors

  • Contact : J.-L. Pelouard
    Group : Physique des Dispositifs (PHYDIS)
    More
    Nanophotonic objects have introduced remarkable optical properties (extraordinary transmission[1], invisibility cloak[2]...). More recently in our team, we have demonstrated other properties which are very promising for applications as infrared filters [3], record electromagnetism confinement[4], and funneling effect for a quasi perfect photon harvesting by optical nano-antenna[5].

    Beyond the advances in the field of optics, these remarkable electromagnetic properties pave the way for a new generation of optoelectronic devices conditions in which electron transport have little to do with those encountered in current devices: inter-electrode distance is very short, exalted absorption, shorter transit time than the carrier relaxation times ...

    A postdoc position is now open to our team on this subject for a one year renewable period. In a close collaboration with the whole team, it will be to design, implement and study a new class of photodetectors based on optical nano-antennas for operation in the infrared.

    Contact: Jean-Luc Pelouard (jean-luc.pelouard lpn.cnrs.fr)

    [1] L. Martin-Moreno et al. Phys. Rev. Lett *86* 114 (2001)
    [2] Jensen Li et al. Phys. Rev. Lett. *101* 203901 (2008)
    [3] S. Collin et al. Phys. Rev. Lett. *104*(2) 027401 (2010) et R. Haidar et al. Appl. Phys. Lett *96* 221104 (2010)
    [4] A. Cattoni et al. Nano Lett. *11*(9) 3557 (2011)
    [5] F. Pardo et al. Phys. Rev. Lett. *107* 093902 (2011)

  • 3D Metamaterials for NIR and MIR: applications to waveguide components

  • Contact : S. Collin
    Group : Physique des Dispositifs (PHYDIS)
    More
    The aim of this project is to fabricate and to study new metallic metamaterials for the near- and far- infrared. They will be fabricated in our clean-room with high-resolution fabrication techniques allowing three-dimensional nanostructuration. This structuration enable the engineering of the optical properties of materials (to obtain negative indices for instance). The anisotropy and the dispersion of the effective optical parameters of 3D metamaterials will be studied experimentally on large spectral (0.5-12µm) and angular (0°-70°) ranges with a high-resolution optical setup (reflexion and transmission). Applications to waveguide components for telecommunication devices will be considered. This study will be carried out in collaboration with the Institut 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Institut d\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'Electronique Fondamentale, and UTT.

  • Réalisation et étude par transmission/réflexion de nanostructures métal-diélectrique membranaires pour la nanophotonique

  • P. Ghenuche-(On going since 2009-01-01)
    Contact : S. Collin
    Group : Physique des Dispositifs (PHYDIS)
    More

  • Nanofabrication pour laser à plasmon de surface

  • C. Sauvan-(2005-10-17 / 2006-10-31)
    Contact :
    Group : Physique des Dispositifs (PHYDIS)
    More

PhDs

Internship Training


  • Wollaston prism-like devices based on subwavelength structures

  • Q. Levesque-(2011-03-01 / 2011-07-31)
    Level : Master2
    Contact : F. Pardo
    Group : Physique des Dispositifs (PHYDIS)
    More

  • Nano-optics in nanostructured membranes

  • Level : Master2
    Contact : S. Collin
    Group : Physique des Dispositifs (PHYDIS)
    More
    Le groupe ''Physique des dispositifs » du LPN/CNRS collabore étroitement depuis 2004 avec l'unité CIO de l'ONERA/DOTA pour concevoir, fabriquer et caractériser des nanostructures métalliques appliquées à l'optique infrarouge. Ces structures induisent des résonances plasmoniques qui permettent de réaliser des fonctions optiques plus ou moins complexes (filtrage spectral, optiques diffractives ou réfractives...). La taille des dispositifs associés est typiquement micrométrique, ce qui ouvre la voie à une miniaturisation des systèmes optiques, voire à l'intégration de la fonction optique au voisinage d'une puce de détection. Récemment, nous avons réussi à fabriquer les premières membranes métalliques nanostructurées de grandes dimensions. Il s'agit notamment de fentes nanométriques percées dans un film métallique auto-suspendu. Ces membranes ont permis de mettre en évidence des propriétés de filtrage exceptionnelles (filtres passe-bande), avec une transmission maximale record atteignant 87 %, alors que le métal recouvre environ 80 % de la surface. Ces résultats ouvrent la voie à des applications prometteuses pour l'imagerie infrarouge. Plusieurs brevets sont en cours de dépôt. L'objectif de ce stage est d'approfondir la compréhension des interactions lumière-matière dans les nanostructures membranaires 1D et 2D. La première étape du stage consistera à effectuer des mesures optiques sur des membranes formées de nano-barreaux diélectriques. Ce travail permettra d'établir les relations de dispersion de ces structures périodiques. En augmentant progressivement la complexité du motif élémentaire (1 barreau, puis 2 nano-barreaux couplés en champ proche, puis N nano-barreaux couplés), l'objectif sera de mettre en évidence une réponse multi-résonante. Les résultats expérimentaux seront ensuite analysés en utilisant les outils numériques dont nous disposons (calculs électromagnétiques 1D exacts). Ce travail doit ouvrir la voie à une nouvelle famille de filtres spectraux « multi-résonants », formés de nano-résonateurs couplés en structure membranaire. Ce travail pourra être poursuivi par une thèse, dont les objectifs seront : (1) de parvenir à une véritable ingénierie de la réponse spectrale des membranes nanostructurés, (2) de réaliser leurs démonstrations expérimentales (nano-fabrication en salle blanche et caractérisation optique), (3) de les intégrer dans des systèmes d'imagerie infrarouge (ONERA).

  • Nanostructures plasmoniques 2D pour l\'optique infrarouge

  • Level : Master2
    Contact : F. Pardo , P. Bouchon
    Group : Physique des Dispositifs (PHYDIS)
    More
    L'unité CIO de l'ONERA/DOTA et le groupe PhyDis du CNRS/LPN collaborent étroitement depuis 2004 pour concevoir, fabriquer et caractériser des nanostructures métalliques appliquées à l'optique infrarouge. Ces structures induisent des résonances plasmoniques qui permettent de réaliser des fonctions optiques plus ou moins complexes (filtrage spectral, optiques diffractives ou réfractives...). La taille des dispositifs associés est typiquement micrométrique, ce qui ouvre la voie à une miniaturisation des systèmes optiques, voire à l'intégration de la fonction optique au voisinage d'une puce de détection. Pour dimensionner ces nouveaux objets, il est nécessaire de disposer de codes de modélisation et de simulation de performances adaptés. A ce jour, nous avons développé une technique de modélisation électromagnétique ultra-rapide pour simuler le comportement de nanostructures métalliques 1D. Cependant, concevoir des structures 2D permettrait de rendre les dispositifs insensibles à la polarisation de l'onde lumineuse, ce qui serait un avantage applicatif fort. Pour cela, il convient d'adapter le code RMCB actuel aux nanostructures 2D. Intégré au sein des équipes CIO et PhyDis, le stagiaire prendra dans un premier temps en main le modèle numérique en 1D autant du point de vue théorique que pratique, en simulant le comportement de nanostructures métalliques et en dimensionnant des dispositifs basés sur leurs propriétés optiques. Il participera ensuite au développement du modèle numérique en 2D, qui est une évolution considérable du code actuel et requiert l’utilisation de concepts mathématiques poussés. Il sera enfin amené à participer à la fabrication en salle blanche des prototypes basés sur les simulations RMCB et à en mesurer les propriétés sur des bancs optiques dédiés. Par la suite, le travail de thèse sera plus prospectif. Il s’agira alors d’exploiter les concepts de résonances plasmoniques pour améliorer des systèmes de détection optique, soit en leur ajoutant une fonction optique (filtrage « couleur » ou en polarisation) soit en augmentant leurs performances intrinsèques (sensibilité, bruit).

  • Plasmonique dans les nanostructures métalliques

  • Level : Master2
    Contact : S. Collin
    Group : Physique des Dispositifs (PHYDIS)
    More
    Les plasmons de surface sont des ondes évanescentes qui permettent de confiner la lumière dans des ouvertures sub-longueur d'onde, et de la guider le long de nanostructures métalliques. Ces propriétés étonnantes ouvrent de nouvelles perspectives en optoélectronique pour l'absorption, l'émission ou le guidage à faible perte. Elles sont rendues possibles grâce aux techniques de nanofabrication dont nous disposons. L'objectif de ce travail est une étude des résonances mises en jeu dans les nanostructures métalliques, et leur intégration dans de nouveaux dispositifs optoélectroniques. Ce travail portera en particulier sur la fabrication et l'étude optique de nanostructures métalliques. Il s'appuyera sur les moyens technologiques disponibles dans la salle blanche du LPN, et sur un banc de caractérisation optique qui nous permet de mesurer la transmission et la réflexion de la lumière à tous les angles d'incidence, et pour des longueurs d'onde allant de 1 à 10 microns.

  • Réflexion en bord de MIM

  • G. Papaiz-Garbini-(2010-04-05 / 2010-07-05)
    Level : Master1
    Contact : F. Pardo
    Group : Physique des Dispositifs (PHYDIS)
    More

  • Nanostructures métalliques pour la photonique

  • S. Collin-(1999-01-15 / 1999-09-01)
    Level : Master
    Contact : F. Pardo
    Group : Physique des Dispositifs (PHYDIS)
    More
    Stage d'élève ingénieur de Supélec et DEA Electronique de l'Université Paris VI
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