Browsing Doctoral Theses / Doktorsavhandlingar Institutionen för fysik by Title
Now showing items 11-30 of 71
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Deep Learning Applications - From image analysis to medical diagnosis
(2021-05-11)Deep learning is a subcategory of machine learning and artificial intelligence. Instead of using explicit rules to perform a desired task as in standard algorithmic approaches, machine-learning algorithms autonomously learn ... -
Designer magnetoplasmonics for adaptive nano-optics
(2017-08-24)Materials that provide real-time control of the fundamental properties of light at visible and near-infrared frequencies enable the essential components for future optical devices. Metal nanostructures that couple ... -
Development and Applications of Microfluidic Devices for Liver-on-a-Chip Studies
(2021-10-12)Modeling the human physiology in vitro is a challenging task, yet one of importance for the development of drugs and the study of diseases. To better address the complexities of human organs, microfluidic systems called ... -
Double Inner-Shell Vacancies in Molecules
(2019-05-15)Molecular electronic states possessing a double core-vacancy, referred to as double-core-hole (DCH) states, were predicted more than thirty years ago, to have interesting properties, which would allow one to probe matter ... -
Dynamics and Structure of Negative Ions - Photoinduced double detachment on nano- and femtosecond time scales
(2020-05-05)The goal of the presented work is to investigate double detachment of negative ions on nano- and femtosecond time scales. I have performed three types of experiments. Femtosecond time resolved pump-probe experiments ... -
Dynamics of particles in fluids: effects of correlations and interactions
(2022-01-24)Particles suspended in turbulent fluid flows are common in Nature and in technological applications. In some cases, the relative dynamics of spherical particles may be of interest. One example is small rain droplets in ... -
Electromechanical Phenomena in Superconducting and Normal Nanostructures
(2013-05-08)This thesis summarizes a series of theoretical studies on the electromechanical properties of nanostructures made of superconducting and/or metallic elements. The first part of the work is devoted to the analysis of the ... -
Electronic Control of Flexural Nanowire Vibrations
(2011-05-19)“Nanoelectromechanical systems” (NEMS) are nanometer-sized mechanical structures coupled to electronic devices of comparable size. The coupling between mechanical and electronic degrees of freedom, combined with their ... -
Embedded Measurement Systems
(2013-04-30)The subject of Embedded Measurement Systems (EMS) is the merging of embedded systems and electrical measurement systems. This indicates that EMSs are hardware-software systems dedicated to measuring one or a few physical ... -
Equilibrium statistics of channel-confined DNA
(2015-09-24)This thesis is devoted to the study of DNA molecules in nanochannels. In the last ten years, a large number of studies have been conducted wherein DNA molecules were confined to channels with a width of about 100 nm. These ... -
Excited States in Negative Ions
(2014-05-07)This thesis covers experimental studies of atomic negative ions with the main goal of increasing our fundamental understanding of these fragile quantum systems. Comparisons of measurements and calculations have been used ... -
Fluctuating superconductivity and pair-density wave order in the cuprate superconductors
(2020-05-19)High-temperature superconductors are some of nature’s most enigmatic materials. Besides carrying a supercurrent, these materials manifest a range of electronic and structural orders. A state of modulated superconductivity, ... -
Formation and Decay of Multiply-Charged Molecules upon Single-Photon Excitation
(2024-03-25)This thesis presents the investigation of dissociative multi-ionisation processes in gas-phase molecules through single photon absorption, employing a combination of ion spectrometry and electron spectroscopy, relying on ... -
Frequency comb Brillouin microscopy
(2021-10-26)Brillouin light scattering (BLS), an almost a century-old technique, has evolved into a powerful and versatile method to study acoustic and magnetic phenomena down to the nanometer size scale. Presently, BLS can be applied ... -
Genetic variation in natural populations: a modeller's perspective
(2014-10-29)Thanks to advances in genome sequencing, empirical patterns of within- and between-species genetic variation are readily available. By studying these patterns much has been learned about the evolutionary histories of ... -
Glycolytic oscillations in individual yeast cells
(2015-01-07)Oscillations in the concentration of yeast glycolytic intermediates have been intensively studied since the 1950s, but these studies have so far been limited to observations of average oscillatory behavior in synchronized ... -
In Silico Studies of Carbon Nanotubes and Metal Clusters
(2010)Carbon nanotubes have been envisioned to become a very important material in various applications. This is due to the unique properties of carbon nanotubes which can be exploited in applications on length scales spanning ... -
Inertial collisions in random flows
(2011-05-13)In nature, suspensions of small particles in fluids are common. An important example are rain droplets suspended in turbulent clouds. Such clouds can start to rain very quickly and the reason for this is still not fully ... -
Interaction and disorder in helical conductors
(2012-09-28)Different effects from electron-electron interactions and disorder in helical and quasi-helical conductors are studied using bosonisation and renormalisation group methods. The combined effects of Rashba spin-orbit ... -
Ionization of large molecules with short laser pulses
(2010-03-24)The decay dynamics of fullerenes and polyaromatic hydrocarbons (PAH) after femtosecond-laser excitation have been studied experimentally by electron momentum mapping and mass spectrometry. The electron spectra of fullerenes ...