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This book represents the first detailed description, including both theoretical aspects and experimental methods, of the interaction of rare-earth ions with surface plasmon polariton from the point of view of collective plasmon-photon interactions via resonance modes (metal nanoparticles or nanostructure arrays) with quantum emitters (rare-earth ions). These interactions are of particular interest for applications to optical telecommunications, optical displays, and laser solid state technologies. Thus, our main goal is to give a more precise overview of the rapidly emerging field of nanophotonics by means of the study of the quantum properties of light interaction with matter at the nanoscale. In this way, collective plasmon-modes in a gain medium result from the interaction/coupling between a quantum emitter (created by rare-earth ions) with a metallic surface, inducing different effects such as the polarization of the metal electrons (so-called surface plasmon polariton - SPP), a field enhancement sustained by resonance coupling, or transfer of energy due to non-resonant coupling between the metallic nanostructure and the optically active surrounding medium. These effects counteract the absorption losses in the metal to enhance luminescence properties or even to control the polarization and phase of quantum emitters. The engineering of plasmons/SPP in gain media constitutes a new field in nanophotonics science with a tremendous technological potential in integrated optics/photonics at the nanoscale based on the control of quantum effects. This book will be an essential tool for scientists, engineers, and graduate and undergraduate students interested not only in a new frontier of fundamental physics, but also in the realization of nanophotonic devices for optical telecommunication.

International audience; Phase transformation and nucleation-rate-like curve were firstly determined in chalcogenide glasses based on GeS2-Ga2S3-CsCl system, offering a controlled way to the transparent glass-ceramics with designed-in crystal phases and desired microstructure. The whole visible transparent glass of a composition of 25GeS2*35Ga2S3*40CsCl was specified for a demonstration of the controlled crystallization. The expected crystal phases (Ga2S3 crystals) with a very fine size of ~50 nm were achieved successfully, more impressively with a large crystallinity degree of > 80%. An IR-transmitting glass-ceramic with the well improved resistance to the environmental impact was also obtained after a heat-treatment at 350 oC for 30h. And the nonlinear evolution of the thermo-mechanical properties for the resultant glass-ceramics is elucidated by the structural investigation employing SEM, XRD, and NMR techniques. The corresponding results would have benefit for the optimization of designing transparent chalcogenide glass-ceramics with highly specialized properties for many potential new applications in IR spectral region.

Made available in DSpace on 2022-04-28T20:37:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-01-01 In this paper, the influence on optical properties of alkali halides such as CsCl in a covalent glassy matrix has been investigated. Chalcogenide glasses belonging to the (GeS2)-(Ga2S3)-CsCl system with high ratio of CsCl present an entire transparency in the visible range. These glasses maintain good transmission up to 12μm. Furthermore, the thermomechanical properties and the glass hygroscopicity have been investigated as function of the CsCl amount. This new generation of glasses presents a great interest for optical application. They could be used both for passive applications (multi-spectral imaging) and active applications for rare-earth doping due to their good transmission in the visible range, increasing optical pumping possibilities. UMR CNRS 6226 Sciences Chimiques de Rennes Equipe Verres et Céramiques Campus de Beaulieu, 263, Av. du général Leclere CS 74205, 35042 Rennes Cedex Laboratório dos Materiais Fotônicos Instituto de Química UNESP, C.P. 355, CEP 14801-970, Araraquara, SP Laboratório dos Materiais Fotônicos Instituto de Química UNESP, C.P. 355, CEP 14801-970, Araraquara, SP