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Ingénierie d'indice optique à base de nanostructures métalliques

Abstract : Plasmonic nanostructures are supporting plasmonic resonances which allow to confine the electromagnetic field and to govern the light behavior at a subwavelength scale. This thesis first deals with absorbing plasmonic structures. I have simulated, fabricated and characterized vertical metal / insulator / metal resonators (high aspect ratio grooves) which exhibit a total absorption in the infrared range. Besides, I have study the strong coupling regime in these resonators which led to very high quality factor. I show that it is also possible to couple several resonators to achieve photon sorting or widening of the absorption band. Furthermore, plasmonic devices are getting more and more complex, and their fast design can be achieved through a reduction of the computation time. I developed a modal method based on B-splines which allows, thanks to sparse matrices, to hasten the computations. Such methods can be used with a metaheuristic algorithm for the design of optical functions, e.g. a wide band absorber or a bandpass filter.
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Contributor : Patrick Bouchon Connect in order to contact the contributor
Submitted on : Thursday, November 17, 2011 - 12:02:25 PM
Last modification on : Tuesday, March 16, 2021 - 3:42:04 PM
Long-term archiving on: : Saturday, February 18, 2012 - 2:31:56 AM


  • HAL Id : pastel-00642068, version 1



Patrick Bouchon. Ingénierie d'indice optique à base de nanostructures métalliques. Micro et nanotechnologies/Microélectronique. Ecole Polytechnique X, 2011. Français. ⟨pastel-00642068⟩



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