Blar i NTNU Open på forfatter "Aas, Lars Martin Sandvik"
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Anisotropic plasmonic Cu nanoparticles in sol-gel oxide nanopillars studied by spectroscopic Mueller matrix ellipsometry
Ghadyani, Zahra; Kildemo, Morten; Aas, Lars Martin Sandvik; Cohin, Y; Søndergård, E (Peer reviewed, 2013)Broadened plasmon resonances of Cu nanoparticles in nanopatterned mixed oxide sol-gel nanopillars are shown to be readily detected by spectroscopic Mueller matrix ellipsometry. The plasmonic nanomaterials are obtained by ... -
Characterisation of quantum dot-intermediate band solar cells with optical spectroscopy
Liudi-Mulyo, Andreas (Master thesis, 2013)This report describes the development of a photoreflectance (PR) technique in order to study InAs/GaAs quantum dots-based intermediate band solar cells (QD-IBSC). The motivation for this study, is that PR has previously ... -
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 Ellipsometric Imaging: Instrumentation and Applications
Aas, Lars Martin Sandvik (Master thesis, 2009) -
Mueller Matrix Imaging and Spectroscopy
Aas, Lars Martin Sandvik (Doktoravhandlinger ved NTNU, 1503-8181; 2013:323, Doctoral thesis, 2013)This thesis presents experimental work on the following topics in Mueller matrix polarimetry; instrument design and implementation, and selected applications of liquid crystal based Mueller matrix polarimeters (MMP) and ... -
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), ... -
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 ... -
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 ... -
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 ...