Sökning: "direct detectors"

Visar resultat 16 - 20 av 23 uppsatser innehållade orden direct detectors.

  1. 16. Absorption of light through isolated and coupled resonances in horizontal InP nanowire arrays

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Ali Hosseinnia; [2015]
    Nyckelord :Coupling; Optical resonances; Horizontal nanowires; Periodic Array; Indium Phosphide; Finite Element Method; Scattering Matrix Method; Eigen function method; Mie Theory; Scattering; Absorption; Nano-Optics; Nanowire; Physics and Astronomy;

    Sammanfattning : We have studied the interaction of light with two types of closely related nanostructures: a single horizontal InP nanowire and an infinite periodic array of such nanowires. The study has been done theoretically by calculating the absorption cross section of the nanowires via a semi analytical method, the Mie theory, and two numerical methods, the scattering matrix method (SMM) and the finite element method (FEM) to perform electromagnetic modeling. LÄS MER

  3. 17. Edge Illumination technique using direct conversion photon counting detectors for X-ray Phase Contrast imaging

    Master-uppsats, KTH/Fysik

    Författare :Chechet Ksenia; [2015]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 18. How bats are affected by wind turbines

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Maja Jonholm; [2015]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : In this study a wind power park of five turbines, Gummaråsen, in the south west of Sweden have been investigated to find out if bats fly in the height of the rotor blades, what species are present and the abundance of bats, at the site. The result showed that no bats was flying close to the wind power turbine, at the height of the nacelle (machine housing) and rotor blades, but bats were present closer to the ground. LÄS MER

  5. 19. NiSi(C) Schottky diodes for IR detection

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Mahdi Moeen; [2012]
    Nyckelord :;

    Sammanfattning : Un-cooled bolometer arrays have been considered as good choices for detection of infrared waves in the ranges of 3-5μm (MWIR: mid wavelength infrared) and 8-12μm (LWIR: long wavelength infrared). Advantages are found in their relative simplicity of mechanism and design, hence, fabrication cost, when compared to detectors working based on photon detection mechanisms. LÄS MER

  7. 20. A Hundred Times Sharper Than Hubble: Stellar imaging with intensity interferometry

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Hannes Jensen; [2010]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Imaging of stellar surfaces in visible wavelengths is one of the current frontiers in astronomy. With a few exceptions, stars can not be seen in visible light as anything but point objects with current technology. LÄS MER