Doctoral Thesis
Recent Submissions
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III-V on Si for Active Photonics: Downscaling and Emission Control by the Use of Metals
(2021)Silicon is the material on which the electronics industry is founded, it is cheap, abundant, self-passivating, and has convenient electrical and optical properties. Most importantly, its low transmission losses in the telecommunication band, makes it ideal for passive optical structures in the near-infrared and thus a promising platform for on—chip photonics and optoelectronics. Due to its indirect band gap, however, an alternative material ...Doctoral Thesis -
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The Dynamics of Occupational Career Trajectories
(2022)Contemporary careers are characterized by manifold socio-economic and technological transformations, that will transform work design across virtually all occupations. Considering such rapid developments, individuals have to adapt to ever changing work environments within their occupations, or, alternatively, pursue different career paths and exit their occupations. Yet, occupations are fundamental reference points that guide individual ...Doctoral Thesis -
Systems analysis of the physiological landscape of antibody repertoires following immunization
(2021)Doctoral Thesis -
Dense object-level robotic mapping
(2022)Autonomous robots operating in unstructured real-world settings cannot rely on an a priori map of their surroundings to support navigation and interaction planning; they must perceive the environment and reconstruct their own internal model of the surrounding space. The more sophisticated the task to automate is, the more expressive the acquired model needs to be. Specifically, robots that are to interact with their environment in meaningful ...Doctoral Thesis -
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"The History that is Made in the Streets": Architecture and Images of Public Space in Revolutionary Russia
(2022)This thesis studies the Soviet remaking of the Russian imperialist city. It presents a revisionist history of Russian revolutionary architecture as well as reconsiders the writing of architectural history between material form and representation, culture and politics. In place of a master narrative, it posits individual objects and narratives related to particular cultural or material products, questioning general problematics on the basis ...Doctoral Thesis -
The multilayer volume-of-fluid method for multiphase flows across scales: breaking waves, microfluidics, and membrane-less electrolyzers
(2021)This thesis presents numerical methods, software, and simulations of multiphase flows with bubbles at various scales based on the volume-of-fluid approach. The applications originate from the goal of developing a numerical model of electrochemical reactors for water electrolysis. Conventional reactors use a proton-exchange membrane to separate the products. Membrane-less reactors, investigated in this work, instead rely on the flow of ...Doctoral Thesis -
Accessing Chemical Information of Single Aerosol Droplets and Liquid Microjets by Spectroscopy
(2022)Doctoral Thesis -
Ultra-Fast Spectroscopy for High-Throughput and Interactive Quantum Chemistry
(2021)With the access to spectroscopic information, reaction mechanisms, molecular structures, and complex dynamics can be elucidated. Unfortunately, obtaining such information is often more time consuming than the calculation of electronic wave functions and energies. In order to warrant the inclusion of spectroscopic information in interactive and high-throughput frameworks, the computational model employed needs to be ultra-fast. In this ...Doctoral Thesis -
Quantum non-demolition readout for optically trapped alkaline-earth Rydberg atoms
(2022)The combination of optical tweezer arrays, which allow trapping of several hundred individual atoms in defect-free crystals, combined with the long-range interaction of Rydberg atoms, render quantum information processing architectures based on neutral atoms a viable contender to more established quantum computation platforms such as trapped ions or superconducting circuits. High-quality single and two-qubit gate operations, quintessential ...Doctoral Thesis -
RF Control and Coherence Spectroscopy of THz Quantum Cascade Laser Frequency Combs
(2021)Frequency combs generated by mode-locked lasers revolutionized the field of high precision metrology in 1999. They quickly found applications in other research and industrial fields such as astronomy, spectroscopy, atomic clocks or security, as they act as optical rulers with a direct link to the RF domain. Therefore, the concept of the frequency comb is explored in many laser systems. One of these systems is the Quantum Cascade Laser ...Doctoral Thesis -
Optically Probing Graphene - Excitonic Sensing of Electronic States
(2022)Can graphene electronic states be probed optically? Being a 2D semimetal, graphene has mostly been investigated with electronic transport techniques. In this work, we explore excitonic states of layered semiconducting transition metal dichalcogenides (TMDs) as sensors for strongly correlated electronic states in graphene. The last two decades have seen a gold rush in research of 2D materials, leading to the development of layered ...Doctoral Thesis -
Omnidirectional Tilt-Rotor Flying Robots for Aerial Physical Interaction: Modelling, Control, Design and Experiments
(2022)This doctoral thesis addresses the study of omnidirectional tilt-rotor aerial robots, and their application to aerial physical interaction tasks. Through modelling, control, prototype design, and experimental evaluation, this work carves a new direction in aerial robotics research, and seeks to inspire a future of versatile and autonomous aerial manipulators. Recent developments in the field of fully actuated aerial robots have ...Doctoral Thesis -
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Fuel- and Time-optimal Low-level Control Strategies of the Formula 1 Hybrid Electric Powertrain
(2021)Doctoral Thesis