Blar i NTNU Open på forfatter "Kildemo, Morten"
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Modelling of spectroscopic Mueller matrices of ordered nanoplasmonic surfaces using the finite element method
Svendsen, Brage Bøe (Master thesis, 2017)This thesis is focused on modelling the complete polarization dependent optical response resulting from reflection from periodic nanostructures with a two-dimensional lattice, using the commercial software COMSOL Multiphysics ... -
Molecular beam and pulsed laser deposition of ZnS:Cr for intermediate band solar cells
Nematollahi, Mohammadreza; Yang, Xiaodong; Aas, Lars Martin Sandvik; Ghadyani, Zahra; Kildemo, Morten; Gibson, Ursula; Reenaas, Turid Worren (Journal article, 2015)We have investigated the structural and optical properties of Cr-doped ZnS (ZnS:Cr) thin films (0–7.5 at.% Cr) for use in intermediate band solar cells. The films were grown on Si(100) in molecular beam epitaxy (MBE) and ... -
Mueller matrix measurements and modeling pertaining to Spectralon white reflectance standards
Svensen, Øyvind; Kildemo, Morten; Jerome, Maria; Stamnes, Jakob J.; Frette, Øyvind (Journal article; Peer reviewed, 2012)The full Mueller matrix for a Spectralon white reflectance standard was measured in the incidence plane, to obtain the polarization state of the scattered light for different angles of illumination. The experimental setup ... -
Mueller matrix three-dimensional directional imaging of collagen fibers
Ellingsen, Pål Gunnar; Aas, Lars Martin Sandvik; Hagen, Vegard Stenhjem; Kumar, Rajesh; Lilledahl, Magnus Borstad; Kildemo, Morten (Journal article; Peer reviewed, 2014)A method for measuring three-dimensional (3-D) direction images of collagen fibers in biological tissue is presented. Images of the 3-D directions are derived from the measured transmission Mueller matrix images (MMIs), ... -
Nanomanufacturing of dielectric metasurfaces supported by spectroscopic Mueller Matrix Ellipsometry
Schwarz, Niklas Richard Saverio Rocca (Master thesis, 2022)Metamaterials are artificially structured composites. They can be used to modulate electromagnetic waves. The structural dimensions must be determined by being smaller than the working wavelength. Metasurfaces are multi- ... -
Optical Characterization of GaAs Nanowires Using Specular Mueller Matrix Ellipsometry
Storås, Christian Alexander (Master thesis, 2015)The purpose of this thesis is to preform ellipsometric measurements to investigate the possibility of in situ characterization of nanowire growth. This will give an advantage for scientist in the future when growing nanowires ... -
Optical Characterization of Intermediate Band Material
Nyeki, Sarah (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 properties of biaxial nanopatterned gold plasmonic nanowired grid polarizer
Aas, Lars Martin Sandvik; Kildemo, Morten; Martella, Christian; Giordano, Maria Caterina; Chiappe, Daniele; Buatier de Mongeot, Francesco (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 resonators and metasurfaces modelled with multipole model
Casado Eide, Adrian (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
Walmsness, Per Magnus; Brakstad, Thomas Vågenes; Svendsen, Brage Bøe; Banon, Jean-Philippe Armand; Walmsley, John; Kildemo, Morten (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 ... -
Parametric model of the Mueller matrix of a Spectralon white reflectance standard deduced by polar decomposition techniques
Kildemo, Morten; Jerome, Maria; Ellingsen, Pål Gunnar; Aas, Lars Martin Sandvik (Journal article; Peer reviewed, 2013)Decomposition methods have been applied to in-plane Mueller matrix ellipsometric scattering data of the Spectralon reflectance standard. Data were measured at the wavelengths 532 nm and 1500 nm, using an achromatic optimal ... -
Polarimetry using classical polarizing components and nanostructured beam splitting surfaces
Borstad, Sigurd Aune (Master thesis, 2018)Two methods for generation and analysis of the polarization state of light are studied in this thesis. The first method is based on a traditional bulk design consisting of two active components and 3 passive components in ... -
Polarization beam-splitting metasurfaces analyzed using the finite-difference time-domain software EMTL
Karlsen, Einar Nyberg (Master thesis, 2018)Using the FDTD solver EMTL, as well as a new way of thinking about metasurfaces, the primary innovation of this thesis was to take two individual birefringent patterns and interleave them in a checkered pattern. This ... -
Potential Intermediate Band Materials: Fabrication and Ellipsometric studies
Brakstad, Thomas Vågenes (Doctoral theses at NTNU;2023:268, Doctoral thesis, 2023)Dagens mest brukte solcelleteknologi nærmer seg den øvre teoretiske grensen for hvor effektivt den kan omgjøre sollys til elektrisitet. For å kunne lage enda mer effektive solceller trenger man derfor å benytte seg av ny ... -
Quantitative characterization of articular cartilage using Mueller matrix imaging and multiphoton microscopy
Ellingsen, Pål Gunnar; Lilledahl, Magnus Borstad; Aas, Lars Martin Sandvik; Davies, Catharina De Lange; Kildemo, Morten (Journal article; Peer reviewed, 2011)The collagen meshwork in articular cartilage of chicken knee is characterized using Mueller matrix imaging and multiphoton microscopy. Direction and degree of dispersion of the collagen fibers in the superficial layer are ... -
Real-time in situ Mueller matrix ellipsometry of GaSb nanopillars: observation of anisotropic local alignment
Nerbø, Ingar Stian; Le Roy, Sebastien; Foldyna, Martin; Søndergård, Elin; Kildemo, Morten (Journal article; Peer reviewed, 2011)The formation of GaSb nanopillars by low energy ion sputtering is studied in real-time by spectroscopic Mueller matrix ellipsometry, from the initial formation in the smooth substrate until nanopillars with a height of 200 ... -
Spectroscopic Ellipsometry of InAs/(Al)GaAs Quantum Dots for Intermediate Band Solar Cells
Drøyli, Maja Bjerke (Master thesis, 2017)As a step towards reducing the CO2 emissions to the atmosphere, generating electricity from renewable energy resources instead of fossil fuels is a good contributor. Solar cells convert energy from sunlight directly into ... -
Spectroscopic Ellipsometry of MoO3-x
Waalekalv, Magnus Langøien (Master thesis, 2016)Intermediate band solar cells (IBSC) has a great potential to increase the efficiency of solar cells and reduce the costs of the generated electricity. To realize IBSC that contain one or more sub-band gap in the main band ... -
Spectroscopic Mueller Matrix Analysis of Plasmonic Nanostructures Fabricated by Focused Ion Beam
Brakstad, Thomas (Master thesis, 2014)As nanofabrication has become more advanced over the last few decades, nanomaterials have received increased interest. One particular aspect of nanosized structures made of noble materials such as gold, is the peculiar ... -
Spectroscopic Mueller matrix ellipsometry of a gap surface plasmon array at conical incidences
Walmsness, Per Magnus; Hale, Nathan; Kildemo, Morten (Peer reviewed; Journal article, 2021)Spectroscopic Mueller matrix ellipsometry is used to study an array of rectangular Au patches on a SiO2 film backed by optically thick Au. The array supports resonances related to gap surface plasmons and Rayleigh anomalies, ...