• Favorable effects on arterial stiffness after renal sympathetic denervation for the treatment of resistant hypertension: a cardiovascular magnetic resonance study 

      Hammer, Tommy Arild; Langlo, Knut Asbjørn Rise; Goa, Pål Erik; Fadl Elmula, Fadl Elmula M.; HOFFMANN, PAVEL; STENSÆTH, KNUT-HAAKON (Peer reviewed; Journal article, 2016)
      Aims: Renal sympathetic denervation (RDN) has recently been suggested to be a novel treatment strategy for patients with treatment-resistant hypertension. However, the latest randomized studies have provided conflicting ...
    • Feasibility of Using Phototherapy with Sunlight for Treatment of Neonatal Jaundice in Low-Income Countries 

      Rønneberg, Sigrid (Master thesis, 2016)
      This thesis aimed to investigate the feasibility of using sunlight exposure as treatment for neonatal jaundice in low-income countries. The investigation answered four questions: 1. Is it feasible to treat infants with ...
    • Feasibility study of the permeability and uptake of mesoporous silica nanoparticles across the blood-brain barrier 

      Baghirov, Habib; Karaman, Didem Sen; Viitala, Tapani; Duchanoy, Alain; Lou, Yan-Ru; Mamaeva, Veronika; Pryazhnikov, Evgeny; Khiroug, Leonard; Davies, Ruth Catharina de Lange; Sahlgren, Cecilia; Rosenholm, Jessica M. (Journal article; Peer reviewed, 2016)
      Drug delivery into the brain is impeded by the blood-brain-barrier (BBB) that filters out the vast majority of drugs after systemic administration. In this work, we assessed the transport, uptake and cytotoxicity of promising ...
    • Femtosecond Cr2+-based lasers 

      Sorokina, Irina T; Sorokin, Evgeni (Journal article; Peer reviewed, 2015)
      We review a novel class of femtosecond Cr2+-doped ZnSe and ZnS lasers, which operates in a very important for applications wavelength range between 2 and 3.5 μm and which generates ultrashort optical pulses that are only ...
    • Femtosecond Cr:ZnS laser at 2.35 µm mode-locked by carbon nanotubes 

      Tolstik, Nikolai; Okhotnikov, Oleg; Sorokin, Evgeni; Sorokina, Irina T (Journal article; Peer reviewed, 2014)
      We report the solid-state Cr:ZnS laser mode-locked by CNT-based saturable absorber. The absorber was deposited on a protected silver mirror used as a high reflector mirror in a standard 250-MHz cavity with chirped mirror ...
    • Femtosecond laser writing of the depressed cladding buried channel waveguides in ZnS crystal 

      Okhrimchuk, A.; Smayev, M.; Likhov, V.; Sorokin, Evgeni; Tolstik, Nikolai; Sorokina, Irina T (Chapter, 2018)
      We report the first direct laser-writing of buried channel waveguides in ZnS. A depressed cladding waveguide with propagation loss of 0.62 dB/cm at 1030 nm allowed to obtain spectral broadening under femtosecond-pumping ...
    • Femtosecond Operation and Random Quasi-Phase-Matched Self-Doubling of Ceramic Cr:ZnSe Laser 

      Sorokin, Evgeni; Sorokina, Irina T (Chapter, 2010)
      A 100-fs Cr:ZnSe laser, based on a ceramic active medium, generates 100 mW at 215 MHz repetition rate around 2450 nm. Co-propagating second-harmonic pulse at 1225 nm is simultaneously generated due to random quasi-phase-matching ...
    • Femtosecond operation and self‐doubling of Cr:ZnS laser 

      Sorokin, Evgeni; Sorokina, Irina T; Tolstik, Nikolai (Chapter, 2011)
      Prismless dispersion‐controlled Cr:ZnS laser generates first femtosecond (110 fs) pulses at 180 MHz repetition rate around 2400 nm with average power 200 mW. Copropagating second‐harmonic pulse at 1200 nm is simultaneously ...
    • Femtosecond SESAM-modelocked Cr:ZnS laser 

      Sorokin, Evgeni; Tolstik, Nikolai; Schaffers, Kathleen I.; Sorokina, Irina T (Journal article; Peer reviewed, 2012)
      We report self-starting femtosecond operation of a 180-MHz SESAM-controlled prismless Cr:ZnS laser around 2400 nm at open air and room temperature. Dispersion compensation was achieved by a combination of bulk materials ...
    • Ferroelastic LaCoO₃-based polycrystalline ceramics : a transmission electron microscopy and X-ray diffraction study 

      Vullum, Per Erik (Doktoravhandlinger ved NTNU, 1503-8181; 2005:143, Doctoral thesis, 2005)
      In the present work rhombohedrally distorted LaCoO3-based materials have been studied using transmission electron microscopy, in situ synchrotron X-ray diffraction during uniaxial compression/decompression, and ex situ ...
    • Ferromagnetic Resonance of LSMO Thin Film 

      Inkoom, Godfred (Master thesis, 2011)
      The magnetic properties of a 15uc thick LSMO thin film on SrTiO3 (STO) substrate atT=150K was investigated using the technique of ferromagnetic resonance (FMR). The FMRmeasurement of the 15uc thick LSMO thin film at a ...
    • Ferromagnetic Resonance Spectroscopy Studies of Permalloy/Copper/Chromium/Copper thin films 

      Ofstad, Johannes (Master thesis, 2014)
      A theroretical and experimental study of 10Py/10Cu, 10Py/10Cu/xCr/10Cu (with x=4,7, 10,13 nm) thin films has been performed. The thin films were fabricated by the sputter deposition technique at NTNU Nanolab and afterwards ...
    • FIB lift-out of conducting ferroelectric domain walls in hexagonal manganites 

      Mosberg, Aleksander Buseth; Roede, Erik Dobloug; Evans, Donald; Holstad, Theodor S.; Bourret, Edith; Yan, Zewu; Van Helvoort, Antonius; Meier, Dennis (Journal article; Peer reviewed, 2019)
      A focused ion beam (FIB) methodology is developed to lift out suitable specimens containing charged domain walls in improper ferroelectric ErMnO3. The FIB procedure allows for extracting domain wall sections with well-defined ...
    • FIB lift-out of conducting ferroelectric domain walls in hexagonal manganites 

      Evans, Donald; Meier, Dennis; Mosberg, Aleksander Buseth; Roede, Erik Dobloug; Holstad, Theodor S.; Bourret, Edith; Yan, Zewu; Van Helvoort, Antonius (Journal article; Peer reviewed, 2019)
      A focused ion beam (FIB) methodology is developed to lift out suitable specimens containing charged domain walls in improper ferroelectric ErMnO3. The FIB procedure allows for extracting domain wall sections with well-defined ...
    • Fiber evanescent wave spectroscopy based on IR fluorescent chalcogenide fibers 

      Chahal, Radwan; Starecki, F.; Boussard-Plédel, C.; Doualan, J.-L.; Michel, K.; Brilland, L.; Braud, A.; Camy, P.; Bureau, B.; Nazabal, Virginie (Journal article; Peer reviewed, 2016)
      Chalcogenide glasses, owing to their transparency in the infrared window and the appropriate solubility of rare earth, allows the generation of middle infrared (mid-IR) radiation from a near infrared or visible pumping ...
    • Fiber Integrated Wavelength Converter Based on a Silicon core Fiber with a Nano-spike cCoupler 

      Huang, Meng; Ren, Haonan; Aktas, Ozan; Shen, Li; Wang, Jiang; Hawkins, Thomas A.; Ballato, John; Gibson, Ursula; Peacock, Anna (Journal article; Peer reviewed, 2019)
      Abstract—An all-fiber integrated nonlinear silicon photonicwavelength converter has been proposed and fabricated using thesilicon core fiber platform. The silicon fiber was spliced directly toa conventional single ...
    • Field dependent conductivity of n-pentane 

      Hestad, Øystein Leif Gurandsrud; Linhjell, Dag; Lundgaard, Lars Esben; Samseth, Jarl Ø.; Unge, Mikael (Chapter, 2017)
      A sensitive differential charge measurement technique was used to measure the conduction current from a sharp needle in a needle plane geometry in n-pentane. The current was measured at voltages up to the threshold for ...
    • Field Theory at finite Temperature and Density: Applications to Quark Stars 

      Strumke, Inga (Master thesis, 2012)
      Abstract:In this thesis we will consider different thermal field theories, and derive an equation of state for deconfined matter.This equation of state will be used in the Tolman-Oppenheimer-Volkoff (TOV)-equations to ...
    • Field-free nucleation of antivortices and giant vortices in non-superconducting materials 

      Amundsen, Morten; Ouassou, Jabir Ali; Linder, Jacob (Journal article; Peer reviewed, 2018)
      are usually energetically unfavorable, but geometric symmetry constraints on a superconductor in a magnetic field are known to stabilize such objects. Here, we show via microscopic calculations that giant vortices can ...
    • Filler metal distribution and processing stability in laser-arc hybrid welding of thick HSLA steel 

      Bunaziv, Ivan; Wenner, Sigurd; Ren, Xiaobo; Frostevarg, Jan; Kaplan, Alexander F.H.; Akselsen, Odd Magne (Journal article; Peer reviewed, 2020)
      Welds made by high power laser beam have deep and narrow geometry. Addition offiller wire by the arc source,forming the laser-arc hybrid welding (LAHW) process, is very important to obtain required mechanical prop-erties. ...