Fabrication of Sub-Wavelength Photonic Structures by Nanoimprint Lithography

Julkaisun otsikon käännös: Fabrication of Sub-Wavelength Photonic Structures by Nanoimprint Lithography

Juha Kontio

    Tutkimustuotos: VäitöskirjaCollection of Articles

    523 Lataukset (Pure)

    Abstrakti

    Nanoimprint lithography (NIL) is a novel but already a mature lithography technique. In this thesis it is applied to the fabrication of nanophotonic devices using its main advantage: the fast production of sub-micron features in high volume in a cost-effective way. In this thesis, fabrication methods for conical metal structures for plasmonic applications and sub-wavelength grating based broad-band mirrors are presented. Conical metal structures, nanocones, with plasmonic properties are interesting because they enable concentrating the energy of light in very tight spots resulting in very high local intensities of electromagnetic energy. The nanocone formation process is studied with several metals. Enhanced second harmonic generation using gold nanocones is presented. Bridged-nanocones are used to enhance Raman scattering from a dye solution. The sub-wavelength grating mirror is an interesting structure for photonics because it is very simple to fabricate and its reflectivity can be extended to the far infrared wavelength range. It also has polarization dependent properties which are used in this thesis to stabilize the output beam of infrared semiconductor disk laser. NIL is shown to be useful a technique in the fabrication of nanophotonic devices in the novel and rapidly growing field of plasmonics and also in more traditional, but still developing, semiconductor laser applications.
    Julkaisun otsikon käännösFabrication of Sub-Wavelength Photonic Structures by Nanoimprint Lithography
    AlkuperäiskieliEnglanti
    KustantajaTampere University of Technology
    Sivumäärä99
    ISBN (elektroninen)978-952-15-3083-8
    ISBN (painettu)978-952-15-3073-9
    TilaJulkaistu - 24 toukok. 2013
    OKM-julkaisutyyppiG5 Artikkeliväitöskirja

    Julkaisusarja

    NimiTampere University of Technology. Publication
    KustantajaTampere University of Technology
    Vuosikerta1131
    ISSN (painettu)1459-2045

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