Search for dissertations about: "In-situ etching"

Showing result 11 - 15 of 27 swedish dissertations containing the words In-situ etching.

  2. 11. Vapor phase deposition of WO and WC

    Author : Per Tägtström; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; vapor deposition; ALE; CVD; tungsten oxide; epitaxy; nanocrystals; tungsten carbide; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : WO3 and WC are two compounds that are widely used for a number of different thin film applications. In this thesis, these compounds have been deposited using two different deposition methods: atomic layer epitaxy (ALE) and chemical vapor deposition (CVD). READ MORE

  4. 12. Studies on the remineralization of white spot lesions : longitudinal assessment with quantitative light-induced fluorescence

    Author : Susan Al-Khateeb; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The global aim of this work was to develop and test the light induced fluorescence method using either laser light or a regular, i.e. noncoherent light source for quantification of mineral changes in white spot lesions. Validation studies were carried out to establish the correlation between fluorescence loss and mineral loss. READ MORE

  5. 13. Ferroelectric domain engineering and characterization for photonic applications

    Author : Simonetta Grilli; Fredrik Laurell; Wolfgang Sohler; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LiNbO; KTiOPO; interferometry; digital holography; electric field poling; electro-optic materials; holographic lithography; ferroelectric domains; nanostructures; microstructures; Optical physics; Optisk fysik;

    Abstract : Lithium niobate (LiNbO3) and KTiOPO4 (KTP) are ferroelectric crystals of considerable interest in different fields of optics and optoelectronics. Due to its large values of the nonlinear optical, electro-optic (EO), piezoelectric and acousto-optical coefficients, LiNbO3 is widely used for laser frequency conversion using the quasiphase matching (QPM) approach where the sign of nonlinearity has been periodically modulated by electric field poling (EFP). READ MORE

  6. 14. Nanofabrication of Zone Plate Optics for Compact Soft X-Ray Microscopy

    Author : Anders Holmberg; Hans Hertz; Christian David; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Abstract : This Thesis describes the development of the KTH/Stockholm nanofabrication process for diffractive soft x-ray optics. The effort is motivated by the need for and requirement of specially designed diffractive optics and test objects for compact x-ray microscopy as well as optics for other applications such as phase imaging. READ MORE

  7. 15. Epitaxial Growth and Characterization of SiC for High Power Devices

    Author : Jawad ul Hassan; Peder Bergman; Hidekazu Tsuchida; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Silicon Carbide (SiC) is a semiconductor with a set of superior properties, including wide bandgap, high thermal conductivity, high critical electric field and high electron mobility. This makes it an excellent material for unipolar and bipolar electronic device applications that can operate under high temperature and high power conditions. READ MORE