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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 ... -
Optimal choice of state tomography quorum formed by projection operators
(Journal article; Peer reviewed, 2019)A minimal set of measurement operators for quantum state tomography has in the nondegenerate case ideally eigenbases which are mutually unbiased. This is different for the degenerate case. Here we consider the situation ... -
Optimal path for the flow of yield stress fluids
(Doctoral theses at NTNU;2023:386, Doctoral thesis, 2023)Numerous real-world applications depend on understanding how liquids or gases flow through the tiny holes of materials like soil or rocks, called “porous media”. These applications range from cleaning up polluted groundwater ... -
Optimal Paths in Random Conductor Networks
(Master thesis, 2013)In this master thesis, the spanning path through a random conductor network with aquenched threshold distribuion has been studied. An argument is made using a hierar-chial model, that for bonds having a piecewise linear ... -
Optimal threshold for PET-based autocontouring of boost volume for radiotherapy of anal carcinoma
(Master thesis, 2017)For patients with anal carcinoma, local tumor control and local recurrence after radiotherapy treatment is a challenge. To improve the local control, a dose escalation could be delivered. Using FDG-PET, the most glucose-avid ... -
"Optimalisering av IMRT-planar for øyre-nase-hals-kreft"
(Master thesis, 2009)In the dose planning system Oncentra MasterPlan there is a module for IMRT planning (IMRT - Intensity modulated radiation therapy). This module optimizes the plan based on given requirements for doses given to target volumes ... -
Optimering av ReaxFF kraftfeltparametre for germanium
(Master thesis, 2009)Oppgaven er innenfor området beregningsfysikk/-kjemi og vil bestå i å modellere utvalgte systemer (molekyler og bulk krystaller) med relevans for den eksperimentelle aktiviteten ved Institutt for fysikk. Metodene som tas ... -
Optimisation of Positron-Positronium Conversion and Positronium Laser Excitation
(Master thesis, 2015)The AEgIS collaboration (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) at CERN has as its goal to directly measure the Earth's gravitational force on antimatter for the first time. Neutral antihydrogen atoms ... -
Optimising multi-frame ADF-STEM for high-precision atomic-resolution strain mapping
(Journal article; Peer reviewed, 2017)Annular dark-field scanning transmission electron microscopy is a powerful tool to study crystal defects at the atomic scale but historically single slow-scanned frames have been plagued by low-frequency scanning-distortions ... -
Optimising ultrasonic beamforming through solid plates
(Master thesis, 2021)Ultrasoniske verktøy gir en ikke-destruktiv måte å teste integriteten av borehull og sementen som ligger rundt røret. Dagens verktøy tar ikke i bruk dynamisk fokusering, og visse begrensninger på grunn av dette. Å fokusere ...