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Causality in quantum field theory with classical sources
(Journal article; Peer reviewed, 2019)In an exact quantum-mechanical framework we show that space-time expectation values of the second-quantized electromagnetic fields in the Coulomb gauge in the presence of a classical conserved source automatically lead to ... -
Cavity Quantum Electrodynamics
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:282, Doctoral thesis, 2013)This thesis is an investigation of the following four key concepts related to light: The position dependent Lamb-shift giving rise to a magnetic Casimir-Polder force close to a dielectric medium has been studied. Memory ... -
Cavity-mediated impact of superconductors on ferromagnetic insulators
(Doctoral theses at NTNU;2022:254, Doctoral thesis, 2022)This dissertation is a presentation of the research conducted during three years at the QuSpin Center for Quantum Spintronics, on the cavity-mediation of interactions between ferromagnetic insulators (FI) and superconductors ... -
Cavity-mediated superconductor–ferromagnetic-insulator coupling
(Peer reviewed; Journal article, 2023)A recent proof of concept showed that cavity photons can mediate superconducting (SC) signatures to a ferromagnetic insulator (FI) over a macroscopic distance [A. T. G. Janssønn et al., Phys. Rev. B 102, 180506(R) (2020)]. ... -
Cellular Interaction with Polymeric Nanoparticles: The Effect of PEGylation and Monomer Composition
(Master thesis, 2013)It is of importance to understand which nanoparticle properties that govern the interactions between particles and cells, in order to develop a nanocarrier with the desired functionality. In this thesis, nanoparticles made ... -
Cellular uptake and intracellular degradation of poly(alkyl cyanoacrylate) nanoparticles
(Journal article; Peer reviewed, 2016)Background Poly(alkyl cyanoacrylate) (PACA) nanoparticles have shown promise as drug carriers both to solid tumors and across the blood–brain barrier. Efficient drug delivery requires both high cellular uptake of the ... -
Cellular Uptake of Nanoparticles by Sonoporation
(Master thesis, 2017)Encapsulation of anti-cancer drugs in nanoparticles (NPs) can solve many of the problems and side-effects related to cancer treatment today. By exposing micrometer-sized gas-filled bubbles to ultrasound, cellular uptake ... -
Centrosymmetric Tetragonal Tungsten Bronzes A4Bi2Nb10O30 (A = 2 Na, K, Rb) with a Bi 6s Lone Pair
(Peer reviewed; Journal article, 2022)A first-principles study of the tetragonal tungsten bronze (TTB) K4Bi2Nb10O30 has suggested that the Bi 6s lone pair causes in-plane polarization (within the a–b plane), corresponding to the one found in Pb5Nb10O30 (PN), ... -
Ceramic Cr:ZnS laser mode-locked by graphene
(Chapter, 2014)We report a high-power graphene mode-locked ceramic Cr:ZnS-laser, producing 3.9 nJ, 140 fs pulses with 45 nm spectral bandwidth at 270 MHz repetition rate, at output power for the first time exceeding 1 W level. -
Cerebral Hemodynamics in Normal Neonates During Tilt: Computer Modelling and Experiments
(Master thesis, 2019)Nyfødte barn er sårbare for å få forstyrret blodstrømmen i hjernen. I verste fall kan forstyrrelsen føre til hjerneskader og ende med død eller livsvarige funksjonsnedsettelser. Et ultralyd-system kalt NeoDoppler har nylig ... -
CFD Study of a 10 MW Offshore Horizontal Axis Wind Turbine Blade
(Master thesis, 2011)This Master thesis is a study of wind turbine aerodynamics on a 10 MW offshore wind turbine blade with a Computational Fluid Dynamics, CFD, approach.The objectives for the thesis were, (i) make a Computer Aided Design, ... -
Chaotic chirped-pulse oscillators
(Journal article; Peer reviewed, 2013)We present results of experimental investigation of the chaotic and quasi-periodic regime in the chirped-pulsed (dissipative soliton) Cr:ZnS and Cr:ZnSe mid-IR oscillators with significant third-order dispersion. The ... -
Chaotic regime in chirped-pulse mid-IR oscillators
(Chapter, 2013)We present experimental investigation of the chaotic mode-locking operation regime in two novel chirped-pulsed Cr:ZnS and Cr:ZnSe mid-IR lasers. The long-term stable regime is caused by the nonlinear interaction of dispersive ... -
Chaotic Vortex Dynamics in Bose-Einstein Condensates
(Master thesis, 2017)Quantum vortices in superfluid Bose Einstein condensates (BECs) are excellent candidates for studying hydrodynamic phenomena, such as turbulence and chaos, due to the quantization of vortex circulation and the absence of ... -
Characterisation of Calcium- and Phosphorus-Enriched Porous Coatings on CP Titanium Grade 2 Fabricated by Plasma Electrolytic Oxidation
(Journal article; Peer reviewed, 2017)In the paper, Scanning Electron Microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), and Glow Discharge Optical Emission Spectroscopy (GDOES) analyses of calcium- and ... -
Characterisation of photochromic oxygen-containing yttrium hydride by electron microscopy
(Master thesis, 2017)Smart windows based on chromogenic materials have in recent years emerged as promising candidates for the next generation of energy-efficient windows. One group of chromogenic materials are photochromic, which are characterised ... -
Characterisation of porous coatings formed on titanium under AC plasma electrolytic oxidation
(Journal article; Peer reviewed, 2018)The Plasma Electrolytic Oxidation (PEO) process may be used to fabricate porous coatings on titanium. The ranges of voltages used in case of these plasma treatments are different. It has been found that for DC PEO processing ... -
Characterisation of porous coatings formed on titanium under DC plasma electrolytic oxidation
(Journal article; Peer reviewed, 2018)Porous coatings on titanium may be obtained by AC or DC Plasma Electrolytic Oxidation (PEO) process. One has to point out that depending on the plasma treatment the ranges of voltages used are different. It has been found ... -
Characterisation of quantum dot-intermediate band solar cells with optical spectroscopy
(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 ... -
Characterisation of quasi-stationary planetary waves in the Northern MLT during summer
(Journal article; Peer reviewed, 2015)Observations of planetary wave (PW) activity in the northern hemisphere, polar summer mesosphere and lower thermosphere (MLT) are presented. Meteor winds from a northern hemisphere chain of SuperDARN radars have been used ...