@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00011611v2> a dcat:Dataset ;
    dct:description """
              Nulling interferometry, a coronographic technique used in astronomy, is the core of the ESA Darwin mission dedicated to the direct detection of extrasolar earth-like planets.<br />This technique requires a very stable optical system for the combination of multiple beams. Moreover, the scientific objectives require the use of modal filtering of the incoming beams.<br />This thesis focuses on the development of mid-infrared integrated optics (IO) that can perform both combination and modal filtering functions. The initial context is thus the extension of single-mode IO from the near-infrared to the mid-infrared range, which corresponds to an important spectral domain for planet searches. After a description of nulling interferometry requirements, I present the fundamental guided-optics notions used to study the dielectric waveguides and the hollow metallic waveguides<br />solutions. Moreover, I discuss the issue of coupling light into the waveguide. The lab characterization work at 10 microns has involved the implementation of dedicated methods and breadboards in the mid-infrared, which permitted me to<br />demonstrate the waveguide and the single-mode behavior of the first manufactured structures. The preliminary measurements of the signal extinction have also shown the importance of pursuing this technological research for purposes of modal filtering.<br />Mid-infrared integrated optics has now reached a new and important step and will contribute, on a mid-term basis, to the implemetation of nulling interferometry.
            """ ;
    dct:identifier "tel-00011611" ;
    dct:issued "2026-05-26T22:44:43.675174"^^xsd:dateTime ;
    dct:language "fr" ;
    dct:modified "2026-05-26T22:44:43.675180"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Integrated optics in the mid-infrared : application to nulling interferometry for the detection of earth-like planets" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00011611v2/resource/2a904e58-45e6-4a3d-8423-dd19f803685d> ;
    dcat:keyword "extrasolar-planets",
        "infoeu-reposemanticsdoctoralthesis",
        "infrared-instrumentation",
        "instrumentation-infrarouge",
        "integrated-optics",
        "interferometrie-en-frange-noire",
        "nulling-interferometry",
        "optique-integree",
        "planetes-extra-solaires",
        "sduastrsciences-of-the-universe-physicsastrophysics-astro-ph",
        "theses" ;
    dcat:landingPage <https://theses.hal.science/tel-00011611> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00011611v2/resource/2a904e58-45e6-4a3d-8423-dd19f803685d> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-26T22:44:43.868869"^^xsd:dateTime ;
    dct:modified "2026-05-26T22:44:43.634009"^^xsd:dateTime ;
    dct:title "Integrated optics in the mid-infrared : application to nulling interferometry for the detection of earth-like planets" ;
    dcat:accessURL <https://theses.hal.science/tel-00011611> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .

<https://theses.hal.science/tel-00011611> a foaf:Document .