Blar i Institutt for fysikk på dokumenttype "Peer reviewed"

Viser treff 41-60 av 1192

    • All-laser-microprocessed waveguide Cr:ZnS laser 

      Sorokin, Evgeni; Bushunov, Andrey; Tolstik, Nikolai; Teslenko, Andrei; Einmo, Eskil; Tarabrin, Mikhail; Lazarev, Vladimir; Sorokina, Irina T (Peer reviewed; Journal article, 2022)
      We report the proof-of-concept of an operational laser active medium with a depressed cladding waveguide manufactured in the volume of a Cr2+:ZnS single-crystalline sample and antireflection microstructures fabricated on ...

    • All-optical high-speed modulation of THz transmission through silicon core optical fibers 

      Sørgård, Trygve Reinertsen; Hawkins, Thomas; Ballato, John; Österberg, Ulf Lennart; Gibson, Ursula (Journal article; Peer reviewed, 2021)
      High speed optical modulation of THz radiation is of interest for information processing and communications applications. In this paper infrared femtosecond pulses are used to generate free carriers that reduce the THz ...

    • Alloy structure of rare earth Ce with Pt base metal, and the adsorption of CO 

      Nigussa, Kenate Nemera; Støvneng, Jon Andreas (Peer reviewed; Journal article, 2019)
      The alloy structure of Ce and Pt inter-metallics is investigated with density functional theory. A systematic analysis of different alloy structures and surface terminations, as well as adsorption of CO in different sites ...

    • Alpha-Synuclein Strain Variability in Body-First and Brain-First Synucleinopathies 

      Just, Mie Kristine; Gram, Hjalte; Theologidis, Vasileios; Jensen, Poul Henning; Nilsson, K Peter R; Lindgren, Mikael; Knudsen, Karoline; Borghammer, Per; Van Den Berge, Nathalie (Peer reviewed; Journal article, 2022)
      Pathogenic alpha-synuclein (asyn) aggregates are a defining feature of neurodegenerative synucleinopathies, which include Parkinson's disease, Lewy body dementia, pure autonomic failure and multiple system atrophy. Early ...

    • Alternative coalescence model for deuteron, tritium, helium-3 and their antinuclei 

      Kachelriess, Michael; Ostapchenko, Sergey; Tjemsland, Jonas (Peer reviewed; Journal article, 2020)
      Antideuteron and antihelium nuclei have been proposed as a detection channel for dark matter annihilations and decays in the Milky Way, due to the low astrophysical background expected. To estimate both the signal for ...

    • Amphiphilic Protoporphyrin IX Derivatives as New Photosensitizing Agents for the Improvement of Photodynamic Therapy 

      Desgranges, Stéphane; Juzenas, Petras; Vasovic, Vlada; Gederaas, Odrun Arna; Lindgren, Mikael; Warloe, Trond; Qian, Peng; Contino-Pepin, Christiane (Peer reviewed; Journal article, 2022)
      Photodynamic therapy (PDT) is a non-invasive therapeutic modality based on the interaction between a photosensitive molecule called photosensitizer (PS) and visible light irradiation in the presence of oxygen molecule. ...

    • Amyloid-Like Aggregation in Native Protein and its Suppression in the Bio-Conjugated Counterpart 

      Mukhopadhyay, Anasua; Stoev, Iliya D.; King, David. A.; Sharma, Kamendra P.; Eiser, Erika (Peer reviewed; Journal article, 2022)
      Prevention of protein aggregation and thus stabilization of proteins has large biological and biotechnological implications. Here we introduce Dynamic Light Scattering (DLS) and DLS-based microrheology to show how native ...

    • Amyloid-Like Aggregation in Native Protein and its Suppression in the Bio-Conjugated Counterpart 

      Mukhopadhyay, Anasua; Stoev, Iliya D.; King, David. A.; Sharma, Kamendra P.; Eiser, Erika (Peer reviewed; Journal article, 2022)
      Prevention of protein aggregation and thus stabilization of proteins has large biological and biotechnological implications. Here we introduce Dynamic Light Scattering (DLS) and DLS-based microrheology to show how native ...

    • An experimental strategy unveiling exosomal microRNAs 486-5p, 181a-5p and 30d-5p from hypoxic tumour cells as circulating indicators of high-risk rectal cancer 

      Bjørnetrø, Tonje; Redalen, Kathrine; Meltzer, Sebastian; Thusyanthan, Nirujah Sivarajah; Samiappan, Rampradeep; Jegershöld, Caroline; Handeland, Karianne Risberg; Ree, Anne Hansen (Journal article; Peer reviewed, 2019)
      Tumour hypoxia contributes to poor treatment outcome in locally advanced rectal cancer (LARC) and circulating extracellular vesicles (EVs) as potential biomarkers of tumour hypoxia and adverse prognosis have not been fully ...

    • An Optical Power Limiting and Ultrafast Photophysics Investigation of a Series of Multi-Branched Heavy Atom Substituted Fluorene Molecules 

      Lunden, Hampus; Pitrat, Delphine; Mulatier, Jean-Christophe; Monnereau, Cyrille; Minda, Iulia; Liotta, Adrien; Chábera, Pavel; Hopen, Didrik K.; Lopes, Cesar; Parola, Stephane; Pullerits, Tönu; Andraud, Chantal; Lindgren, Mikael (Journal article; Peer reviewed, 2019)
      A common molecular design paradigm for optical power limiting (OPL) applications is to introduce heavy atoms that promote intersystem crossing and triplet excited states. In order to investigate this effect, three ...

    • An unreported precipitate orientation relationship in Al-Zn-Mg based alloys 

      Bendo, Artenis; Matsuda, Kenji; Lervik, Adrian; Tsuru, Tomohito; Nishimura, Katsuhiko; Nunomura, Norio; Holmestad, Randi; Marioara, Calin Daniel; Shimuzu, Kazuyuki; Toda, Hiroyuki; Yamaguchi, Masatake (Journal article; Peer reviewed, 2019)
      Characterization of precipitates in Al-Zn-Mg alloys, using a combination of electron diffraction, bright field transmission electron microscopy and atomic scale scanning transmission electron microscopy imaging revealed ...

    • Analysis of Actin and Focal Adhesion Organisation in U2OS Cells on Polymer Nanostructures 

      Vinje, Jakob; Guadagno, Noemi Antonella; Progida, Cinzia; Sikorski, Pawel (Peer reviewed; Journal article, 2021)
      Background In this work, we explore how U2OS cells are affected by arrays of polymer nanopillars fabricated on flat glass surfaces. We focus on describing changes to the organisation of the actin cytoskeleton and in the ...

    • Analytical transmission cross-coefficients for pink beam X-ray microscopy based on compound refractive lenses 

      Falch, Ken Vidar; Detlefs, Carsten; Snigirev, Anatoly; Mathiesen, Ragnvald (Journal article; Peer reviewed, 2018)
      Analytical expressions for the transmission cross-coefficients for x-ray microscopes based on compound refractive lenses are derived based on Gaussian approximations of the source shape and energy spectrum. The effects of ...

    • Análise da Reflexão 001 da Níquel-Fluorohectorita por Difração de Raios X Síncrotron 

      de Oliveira, J. S.; Michels, Leander; Sousa, Marcelo Henrique; Fossum, Jon Otto; Da Silva, G.J.; Mundim, Kleber Carlos; Ribeiro, L. (Journal article; Peer reviewed, 2016)
      In the present work X-ray diffraction was used in order to observe the stable hydration states of the clay nickel-fluorohectorite. The diffraction patterns were measured as function of relative humidity and temperature. ...

    • Andreev reflection in altermagnets 

      Sun, Chi; Brataas, Arne; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)
      Recent works have predicted materials featuring bands with a large spin-splitting distinct from ferromagnetic and relativistically spin-orbit-coupled systems. Materials displaying this property are known as altermagnets ...

    • Angle Resolved Relaxation of Spin Currents by Antiferromagnets in Spin Valves 

      Polishchuk, Dmytro; Kamra, Akashdeep; Polek, Taras; Brataas, Arne; Korenivski, Vladislav (Peer reviewed; Journal article, 2019)
      We observe and analyze tunable relaxation of a pure spin current by an antiferromagnet in spin valves. This is achieved by carefully controlling the angle between a resonantly excited ferromagnetic layer pumping the spin ...

    • Anisotropic and controllable Gilbert-Bloch dissipation in spin valves 

      Kamra, Akashdeep; Polishchuk, Dmytro; Korenivski, Vladislav; Brataas, Arne (Peer reviewed; Journal article, 2019)
      Spin valves form a key building block in a wide range of spintronic concepts and devices from magnetoresistive read heads to spin-transfer-torque oscillators. We elucidate the dependence of the magnetic damping in the free ...

    • Anisotropic diffusion and the cosmic ray anisotropy 

      Kachelriess, Michael (Journal article; Peer reviewed, 2019)
      We argue that the diffusion of cosmic rays in the Galactic magnetic field has to be strongly anisotropic. As a result, the number of CR sources contributing to the local CR flux is strongly reduced. The CR density is ...

    • Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3 

      Das, Shubhankar; Ross, A; Ma, X.X.; Becker, S.; Schmitt, C.; van Duijn, Duijn; Galindez-Ruales, E.F.; Fuhrmann, F.; Syskaki, M.-A.; Ebels, U.; Baltz, V.; Barra, A.-L.; Chen, H.Y.; Jakob, G.; Cao, S.X.; Sinova, J.; Gomonay, O.; Lebrun, R.; Klaui, Mathias Michael (Peer reviewed; Journal article, 2022)
      In antiferromagnets, the efficient transport of spin-waves has until now only been observed in the insulating antiferromagnet hematite, where circularly (or a superposition of pairs of linearly) polarized spin-waves diffuse ...

    • Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO3 

      Klaui, Mathias Michael (Peer reviewed; Journal article, 2022)
      In antiferromagnets, the efficient transport of spin-waves has until now only been observed in the insulating antiferromagnet hematite, where circularly (or a superposition of pairs of linearly) polarized spin-waves diffuse ...