• Advanced methods for the calibration of optical tweezers 

  Pérez García, Laura; Pérez García, Laura; Pérez García, Laura (2023-09-08)

  Optiska pincetter har sedan Arthur Ashkin och hans kollegors uppfinning på 1980-talet möjliggjort noggrann manipulation av mikroskopiska partiklar. Denna teknik har haft betydande inverkan inom flera områden, inklusive ...

• Spectroscopy of Stable and Radioactive Negative Ions 

  Ringvall Moberg, Annie (2023-04-03)

  Negative ions are unique quantum systems which are of fundamental interest within the field of atomic physics due to the importance of the electron correlation in their creation, stability, and existence. Properties of ...

• Dynamics of particles in fluids: effects of correlations and interactions 

  Dubey, Anshuman (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 ...

• Mixing and Evaporation at the Cloud Edge and Angular Dynamics of Small Crystals in Viscous Flow 

  Fries, Johan (2022-01-19)

  How liquid water in atmospheric clouds distributes over droplets of different sizes is important for the initiation of rainfall, and for the optical properties of the atmosphere. Droplet-number densities and droplet-size ...

• Frequency comb Brillouin microscopy 

  Aleman Hernandez, Felipe Ademir (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 ...

• Development and Applications of Microfluidic Devices for Liver-on-a-Chip Studies 

  Dalsbecker, Philip (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 ...

• Thermodynamics of microscopic environments: From anomalous diffusion to heat engines 

  Argun, Aykut (2021-05-17)

  Till skillnad från deras makroskopiska motsvarigheter utvecklas inte mikroskopiska system deterministiskt på grund av inverkan från termiskt brus. Sådana system är föremål för fluktuationer som endast kan studeras inom ...

• Deep Learning Applications - From image analysis to medical diagnosis 

  Helgadottir, Saga (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 ...

• Active Matter in a Critical State: From passive building blocks to active molecules, engines and droplets 

  Schmidt, Falko (2020-12-19)

  The motion of microscopic objects is strongly affected by their surrounding environment. In quiescent liquids, motion is reduced to random fluctuations known as Brownian motion. Nevertheless, microorganisms have been able ...

• A Play of Light and Spins: Excitation and Detection of Non-linear Magnetization Dynamics using Light 

  Muralidhar, Shreyas (2020-09-02)

  The excitation and detection of magnetization dynamics play key roles in the field of spintronics and magnonics. In this thesis, we investigate a contactless method of exciting nonlinear magnetization dynamics using a ...

• Symmetry-protected topological phases: From Floquet theory to machine learning 

  Balabanov, Oleksandr (2020-08-18)

  It is by now a well known fact that boundary states in conventional time-independent topological insulators are protected against perturbations that preserve relevant symmetries. In the first part of this thesis, ...

• Spectroscopic studies of the negative state of atoms 

  Welander, Jakob (2020-08-13)

  Negative ions are of fundamental interest in atomic physics due to the enhanced importance of the electron correlation. In this thesis new spectroscopic methods have been developed and then applied to study the nature of ...

• Fluctuating superconductivity and pair-density wave order in the cuprate superconductors 

  Wårdh, Jonatan (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, ...

• Dynamics and Structure of Negative Ions - Photoinduced double detachment on nano- and femtosecond time scales 

  Hultgren, Hannes (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 ...

• On the phase-space distribution of heavy particles in turbulence 

  Meibohm, Jan (2020-01-03)

  Turbulent fluids laden with small, heavy particles are common in nature. Prominent examples of such turbulent suspensions are water droplets in warm clouds, as well as particulate matter or living organisms in the turbulent ...

• Metabolic communication between individual yeast cells 

  Mojica Benavides, Martin (2019-11-01)

  With the recent progress in sensitive cell manipulation and microfabrication techniques, glycolytic oscillations in yeast have been observed at a single-cell level. It was shown that individually, oscillating cells could ...

• Spin Hall nano-oscillator arrays: towards GHz neuromorphics 

  Zahedinejad, Mohammad (2019-08-28)

• Double Inner-Shell Vacancies in Molecules 

  Koulentianos, Dimitris (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 ...

• Multi-electron processes in atoms and molecules - Experimental investigations by coincidence spectroscopy 

  Andersson, Jonas (2019-05-15)

  This thesis presents studies on multi-electron processes in atoms and molecules initiated by single-photon absorption. The experimental techniques used for these studies rely on synchrotron radiation offered at large scale ...

• Multi-Electron and Multi-Ion Coincidence Spectroscopy of Single-Photon Ionization Processes in Molecules 

  Hult Roos, Andreas (2019-05-15)

  This thesis presents experimental investigations of multi-electron and multi-electron-multi-ion coincidence measurements of samples in the gas phase utilizing a versatile time-of-flight magnetic bottle spectrometer technique. ...

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