Sökning: "Multilayer mirrors"

Visar resultat 6 - 10 av 12 avhandlingar innehållade orden Multilayer mirrors.

  1. 6. Improved inspection and micrometrology of embedded structures in multi-layered ceramics : Development of optical coherence tomographic methods and tools

    Författare :Rong Su; Lars Mattsson; Peter Ekberg; Jerzy Pluciński; KTH; []
    Nyckelord :Metrology; Optical Coherence Tomography; Ceramics; Embedded Structure; Multilayer; Nondestructive Testing; Optical Inspection; Critical Dimension Measurement; Infrared Imaging; Scattering; Mie Calculation; Image Processing; Monte Carlo Simulation; 测量学， 光学相干断层扫描术，陶瓷，嵌入式结构，多层，无损检测，光学检测，关键尺寸测量，红外成像，散射，Mie计算，图像处理，Monte Carlo模拟; SRA - Production; SRA - Produktion;

    Sammanfattning : Roll-to-roll manufacturing of micro components based on advanced printing, structuring and lamination of ceramic tapes is rapidly progressing. This large-scale and cost-effective manufacturing process of ceramic micro devices is however prone to hide defects within the visually opaque tape stacks. LÄS MER

  3. 7. Multilayer neutron optics based on isotope-enriched 11B4C

    Författare :Sjoerd Stendahl; Jens Birch; Fredrik Eriksson; Artur Gregor Glavic; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The work in this thesis covers the design, growth and characterisation of neutron multilayers. The achieved reflectivity performance of a neutron multilayer depends on the achieved optical contrast between the layers as well as the achieved interface width between the layers. LÄS MER

  4. 8. Compact Soft X-Ray Microscopy: Image Processing and Instrumentation

    Författare :Heide Stollberg; Hans Hertz; Jürgen Thieme; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray microscopy; Physics; Fysik;

    Sammanfattning : Soft x-ray microscopy is a powerful technique for natural-contrast, high-resolution imaging of organic materials. This Thesis describes new instrumentational and new image-processing methods to improve the image quality of the compact x-ray microscope at the Biomedical & X-Ray Physics division at KTH. LÄS MER

  5. 9. Enhanced Polarizing Neutron Optics with 11B4C Incorporation : SLD Tunability, Interface Refinement, and Elimination of Magnetic Coercivity

    Författare :Anton Zubayer; Fredrik Eriksson; Jens Birch; Naureen Ghafoor; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis explores novel strategies for improving Fe-based polarizing neutron optics, a critical part for improving neutron scattering methods to study materials science, physics, biology, medicine, chemistry and cultural heritage. Polarization analysis is important in uncovering data on magnetic domains, protein structures, molecular composition and orientation in biological systems, and ion-diffusion mechanisms that would otherwise be inaccessible. LÄS MER

  7. 10. Electron transport properties of graphene and graphene field-effect devices studied experimentally

    Författare :Youngwoo Nam; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; dual-gated graphene field effect devices; thermopower; quantum Hall effect; graphene; Aharonov-Bohm effect; chemical vapour deposition;

    Sammanfattning : This thesis contains experimental studies on electronic transport properties of graphene with the Aharonov-Bohm (AB) effect, thermopower (TEP) measurements, dual-gated graphene field effect devices, and quantum Hall effect (QHE). Firstly, in an effort to enhance the AB effect in graphene, we place superconducting-metal (aluminium) or normal-metal (gold) mirrors on the graphene rings. LÄS MER