Now showing items 787-806 of 1739

    • Label-free non-linear multimodal optical microscopy—basics, development, and applications 

      Mazumder, Nirmal; Balla, Naveen K.; Zhuo, Guan-Yu; Kistenev, Yury V.; Kumar, Rajesh; Kao, Fu-Jen; Brasselet, Sophie; Nikolaev, Viktor V.; Krivova, Natalya A. (Journal article; Peer reviewed, 2019)
      Non-linear optical (NLO) microscopy has proven to be a powerful tool especially for tissue imaging with sub-cellular resolution, high penetration depth, endogenous contrast specificity, pinhole-less optical sectioning ...
    • Labeling nanoparticles: Dye leakage and altered cellular uptake 

      Snipstad, Sofie; Hak, Sjoerd; Baghirov, Habib; Sulheim, Einar; Mørch, Ýrr Asbjørg; Lelu, Sylvie; von Haartman, Eva; Bäck, Marcus; Nilsson, Peter R; Klymchenko, Andrey S; Davies, Ruth Catharina de Lange; Åslund, Andreas (Journal article, 2016)
      In vitro and in vivo behavior of nanoparticles (NPs) is often studied by tracing the NPs with fluorescent dyes. This requires stable incorporation of dyes within the NPs, as dye leakage may give a wrong interpretation of ...
    • Large-scale Monte Carlo simulations of non-Abelian gauge theories and multicomponent Superconductors 

      Bojesen, Troels Arnfred (Doktoravhandlinger ved NTNU, 1503-8181; 2014:252, Doctoral thesis, 2014)
      This thesis presents six research papers on topics in condensed-matter theory and one paper on a computational method. In two of the papers the focus is on the search for Deconfined Quantum Criticality in models describing ...
    • Laser Induced Incandescence with Long Pulse Duration 

      Hverven, Stine Myhre (Master thesis, 2013)
      Laser Induced Incandescence (LII) is a technique used to observe soot concentration and particle size in a flame. The LII signal is captured by an intensified CCD camera. Laser light impacts and heats soot particles within ...
    • Laser light deformation of microdroplets 

      Bossum, Petter Tømmerås (Master thesis, 2014)
      This masters work describes the deformation of a droplet that is illuminated by a laser beam. The theory for linear fluid mechanical motion of the droplet is discussed. This is combined with Lorenz-Mie scattering. Droplet ...
    • Laser recrystallization and inscription of compositional microstructures in crystalline SiGe-core fibres 

      Coucheron, David Andre; Fokine, Michael; Patil, Nilesh; Breiby, Dag Werner; Buset, Ole Tore; Healy, Noel; Peacock, Anna; Hawkins, Thomas A.; Jones, Maxwell; Ballato, John; Gibson, Ursula (Journal article; Peer reviewed, 2016)
      Glass fibres with silicon cores have emerged as a versatile platform for all-optical processing, sensing and microscale optoelectronic devices. Using SiGe in the core extends the accessible wavelength range and potential ...
    • Laser restructuring and photoluminescence of glass-clad GaSb/Si-core optical fibres 

      Song, Seunghan; Lønsethagen, Kristin; Laurell, Fredrik; Hawkins, Thomas A.; Ballato, John; Fokine, Michael; Gibson, Ursula (Journal article; Peer reviewed, 2019)
      Semiconductor-core optical fibres have potential applications in photonics and optoelectronics due to large nonlinear optical coefficients and an extended transparency window. Laser processing can impose large temperature ...
    • Laser structuring, stress modification and Bragg grating inscription in silicon-core glass fibers 

      Fokine, Michael; Theodosiou, Antreas; Song, Seunghan; Hawkins, Thomas A.; Ballato, John; Kalli, Kyriacos; Gibson, Ursula (Journal article; Peer reviewed, 2017)
      Semiconductor core fibers have numerous potential applications in optoelectronics and photonics, and the key to realizing these opportunities is controlled processing of the material. We present results on laser treatments ...
    • Lattice rotations in precipitate free zones in an Al-Mg-Si alloy 

      Christiansen, Emil; Marioara, Calin Daniel; Marthinsen, Knut; Hopperstad, Odd Sture; Holmestad, Randi (Journal article; Peer reviewed, 2018)
      Scanning precession electron diffraction and automated crystal orientation mapping in a transmission electron microscope (TEM) have been applied to quantitatively study the crystal orientation of precipitate free zones ...
    • Leakage and dephasing in 28Si-based exchange-only spin qubits 

      Sala, Arnau; Danon, Jeroen (Journal article; Peer reviewed, 2018)
      Exchange-only spin qubits hosted in 28Si-based triple quantum dots do not suffer from decoherence caused by randomly fluctuating nuclear-spin ensembles and can be relatively robust against electrical noise when operated ...
    • Learning radiation oncology in Europe: Results of the ESTRO multidisciplinary survey 

      Bibault, Jean-Emmanuel; Franco, Pierfrancesco; van Elmpt, Wouter; Thorwarth, Daniela; Schmid, Maximilian P; Rouschop, Kasper M; Spalek, Mateusz; Mullaney, Laura; Redalen, Kathrine; Dubois, Ludwig; Verfaille, Christine; Eriksen, Jesper Grau (Journal article; Peer reviewed, 2018)
      Introduction Radiotherapy education can be very different across Europe, despite the publication of the ESTRO core curricula in 2011. The purpose of the current study is to map the different RO European education systems, ...
    • Lévy Processes and Path Integral Methods with Applications in the Energy Markets 

      Oshaug, Christian A. J. (Master thesis, 2011)
      The objective of this thesis was to explore methods for valuation of derivatives in energy markets. One aim was to determine whether the Normal inverse Gaussian distributions would be better suited for modelling energy ...
    • Light Emission of Streamers in Dielectric Liquids 

      Chen, Jian Bin Ben (Master thesis, 2017)
      Liquid insulation is widely used in various high voltage equipments crucial to a modern electrical grid. It is thus important to understand the behaviour and limits of performance for such liquids. In these experiments, ...
    • Light trapping in horizontally aligned silicon microwire solar cells 

      Martinsen, Fredrik Aleksander; Smeltzer, Benjamin; Ballato, John; Jones, Maxwell; Hawkins, Thomas A.; Gibson, Ursula (Journal article; Peer reviewed, 2015)
      In this study, we demonstrate a solar cell design based on horizontally aligned microwires fabricated from 99.98% pure silicon via the molten core fiber drawing method. A similar structure consisting of 50 μm diameter close ...
    • Linac Specific Quality Assurance and Risk Analysis as a Tool for Improving Quality Assurance in Radiotherapy 

      Skjong, Tonje (Master thesis, 2019)
      Moderne stråleterapi krever høyt nivå av nøyaktighet for å oppnå behandlingsmålet; tumor kontroll kombinert med lav sannsynlighet for normalvevskomplikasjoner. For å oppnå dette må alle stegene i stråleterapiprossesen være ...
    • Linearized general relativity and its quantization 

      Pedersen, Alf-Håkon (Master thesis, 2017)
      We begin by deriving the Einstein equation from the Einstein-Hilbert action integral using variational methods; Variation with respect to the metric and the Palatini variation. The vacuum solution (Schwarzschild solution) ...
    • Lithium ion conductivity and phase composition of 3Li2S + P2S5 - 2LiBH4 + LiBr composites. 

      Høgset, Astrid Bygdås (Master thesis, 2018)
      The crystal structure and electrochemical properties of a mixed 3Li2S + P2S5 - 2LiBH4 LiBr system have been studied, with the aim to investigate relations between ionic conductivity and sample content, and to evaluate ...
    • Local dynamics of a randomly pinned crack front: a numerical study 

      Gjerden, Knut Skogstrand; Stormo, Arne; Hansen, Alex (Journal article; Peer reviewed, 2014)
      We investigate numerically the dynamics of crack propagation along a weak plane using a model consisting of fibers connecting a soft and a hard clamp. This bottom-up model has previously been shown to contain the competition ...
    • Local Resistivity Measurement on Multicrystalline Silicon 

      Gebregiorgis, Ashenafi Weldemariam (Master thesis, 2012)
      Even though in the past the photovoltaic industry was dominated by single-crystalline silicon this days multi-crystalline silicon is consider to be on of the most promising material for application in low manufacturing ...