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One-dimensional spin-polarized surface states: A comparison of Bi(112) with other vicinal bismuth surfaces
(Peer reviewed; Journal article, 2023)Vicinal surfaces of bismuth are unique test beds for investigating one-dimensional (1D) spin-polarized surface states that may one day be used in spintronic devices. In this paper, such states have been observed for the ... -
Onsager-symmetry obeyed in athermal mesoscopic systems: Two-phase flow in porous media
(Peer reviewed; Journal article, 2020)We compute the fluid flow time correlation functions of incompressible, immiscible two-phase flow in porous media using a 2D network model. Given a properly chosen representative elementary volume, the flow rate distributions ... -
Ontology-Based Domain Analysis for Model Driven Pervasive Game Development
(Journal article; Peer reviewed, 2018)Domain Analysis (DA) plays an important role in Model Driven Development (MDD) and Domain-Specific Modeling (DSM). However, most formal DA methods are heavy weight and not practical sometimes. For instance, when computer ... -
Open Systems and Measurement in Quantum Optics: The Photodetection Process and Master Equations
(Master thesis, 2010)All real quantum systems are open, and in particular in thefield of quantumoptics, the measurement process has always been a fundamental object of study.Naturally, simulating such systems and processes on computers is of ... -
Optical Characterization of Intermediate Band Material
(Master thesis, 2023)I de kommende årene vil etterspørselen etter fornybar energi fortsette å øke, på grunn av de globale klimaendringene. Utvikling av solcelleteknologier med høyere effektivitet kan hjelpe til å takle denne utfordringen. ... -
Optical Coatings as Active Media for Mid-Infrared lasers
(Chapter, 2016)Thin films of Cr and Fe-doped ZnS with high infrared transparency have been deposited by molecular beam epitaxy and show optical properties suitable for use as active media in mid-infrared laser applications. -
Optical coatings for enhancement of the longitudinal Magneto-optic Kerr Effect from magnetic ultra-thin films
(Master thesis, 2011)The effect of optical coatings on the longitudinal magneto-optic Kerr effect response from 10 nm thin films of permalloy (Ni84Fe16) has been studied. Enhancement of the magneto-optic Kerr effect signal contrast of a factor ... -
Optical Conductivity of Dirac Fermions in Antiferromagnetic Semimetals
(Master thesis, 2021) -
Optical conversion of pure spin currents in hybrid molecular devices
(Journal article; Peer reviewed, 2017)Carbon-based molecules offer unparalleled potential for THz and optical devices controlled by pure spin currents: a low-dissipation flow of electronic spins with no net charge displacement. However, the research so far has ... -
Optical investigation of osteoarthritic human cartilage (ICRS grade) by confocal Raman spectroscopy: a pilot study
(Journal article; Peer reviewed, 2015)Biomolecular changes in the cartilage matrix during the early stage of osteoarthritis may be detected by Raman spectroscopy. The objective of this investigation was to determine vibrational spectral differences among ... -
An Optical Modeling Framework for Coronavirus Detection Using Graphene-Based Nanosensor
(Peer reviewed; Journal article, 2022)The outbreak of the COVID-19 virus has faced the world with a new and dangerous challenge due to its contagious nature. Hence, developing sensory technologies to detect the coronavirus rapidly can provide a favorable ... -
Optical Polarization Effects of Rough and Structured Surfaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:234, Doctoral thesis, 2012)The reflection and scattering of light from surfaces is a topic that has been much discussed in the scientific literature. The application of optical methods for the characterization of surfaces and the understanding of ... -
Optical Properties and Composition of Fe:ZnS Films
(Master thesis, 2014)Iron doped ZnS thin films were deposited using the physical vapor deposition technique over a concentration range of 0-12% Fe. The thickness and composition of the films were measured with a profilometer and EDS, respectively, ... -
Optical properties of biaxial nanopatterned gold plasmonic nanowired grid polarizer
(Journal article; Peer reviewed, 2013)Gold nanoparticles deposited on self-organized nano-ripple quartz substrates have been studied by spectroscopic Mueller matrix ellipsometry. The surface was found to have biaxial anisotropic optical properties. For electric ... -
Optical Properties of Intermediate Band Ca6FeN5 and Related Materials: A Density Functional Theory Study
(Master thesis, 2023)Denne oppgaven beskriver og demonstrerer en metode for å identifisere nye mellombåndsmaterialer for solceller ved å bruke tetthetsfunksjonalteori. Ca6FeN5 og varianter konstruert ved å erstatte Ca og N med henholdsvis Mg ... -
Optical Properties of Silicon Microwire Arrays for Photovoltaic Applications
(Master thesis, 2015)Silicon microwire-based solar cells represent a potential design strategy to reduce wafer related costs through reduced material usage and relaxed purity requirements. In this work we investigate the absorption of incident ... -
Optical Properties of truncated and coated spheroidal Nanoparticles on a Substrate
(Master thesis, 2012)In nanoparticle research it is common to perform optical measurements on particle films during deposition, to help understand the growth process. GranFilm is a software under development which can calculate the optical ... -
Optical resonators and metasurfaces modelled with multipole model
(Master thesis, 2021)I denne tesen ønsker vi å modelere den optiske responsen til en spesiell type gull nanopartikkel med smeltet silikat ved bruk av vektor sfærisk harmoniske funksjoner i Mie approksimasjonen og opptil kvadropol orden. Vi ... -
Optical response of rectangular array of elliptical plasmonic particles on glass revealed by Mueller matrix ellipsometry and finite element modeling
(Peer reviewed; Journal article, 2019)We report here on the optical response of elliptical gold particles arranged in a rectangular lattice on glass and probed at non-normal incidence in reflection using spectroscopic Mueller matrix ellipsometry in the energy ... -
Optical selection rules of zigzag graphene nanoribbons
(Journal article; Peer reviewed, 2017)We present an analytical tight-binding theory of the optical properties of graphene nanoribbons with zigzag edges. Applying the transfer matrix technique to the nearest-neighbor tight-binding Hamiltonian, we derive analytical ...