Op 20 maart vond de finale van de Legal Tech Challenge 2025 plaats aan de Universiteit Leiden. Vijf studententeams presenteerden hun innovatieve juridische apps aan een jury na weken van samenwerking, brainstormsessies en workshops over juridische toegankelijkheid.

Op 7 februari vond het eerste co-creatie-evenement van het Expanding (Event) Horizons-project plaats aan de Universiteit Leiden. Bijna 30 docenten, wetenschappers en consultants met verschillende achtergronden hebben projecten ontworpen om studenten uit ondervertegenwoordigde minderheidsgroepen te betrekken…

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

De tweejarige masteropleiding Physics wordt aangeboden door het Leids Instituut voor Onderzoek in de Natuurkunde. De opleiding is theoretisch en experimenteel. Er is ruime aandacht voor onderzoekstraining. Ook bieden we veel keuzemogelijkheden en op maat gemaakte, individuele studieprogramma’s.

We use DNA strands to stabilize few-atom silver clusters, which show unique optical and chemical properties. This thesis involves the study of these constructs for various applications.

This thesis covers several aspects of quantum algorithms for near-term quantum computers and its applications to quantum chemistry and material science.

Werken bij een topfaculteit? Ontdek de vacatures bij Wiskunde en Natuurwetenschappen en solliciteer meteen.

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding.

This dissertation focuses on investigating the public communication around quantum science and technology that may affect public engagement.

Op welke manieren hebben ontwikkeling van digitale technologieën invloed op de samenleving en de regulerings- en juridische kaders binnen de samenleving?

Lezing

Sterrenkundige Koen Kuijken en natuurkundige Tjerk Oosterkamp krijgen ieder een grote subsidie van NWO. Hiermee gaan zij nieuwe onderzoeksfaciliteiten bouwen.

Veilige alternatieven ontwikkelen voor schadelijke PFAS-filters en zoeken naar nieuwe enzymen voor bijvoorbeeld medische toepassingen. Twee projecten met Leidse onderzoekers krijgen financiering van het Open Technologieprogramma van NWO.

In Nederland zijn ongeveer 35.000 leerlingen met chronische ziekten. Als zij geen onderwijs kunnen volgen in de klas, kan dat mogelijk vanuit huis of een ziekenhuis met hybride onderwijs. De vraag in dit onderzoek is: hoe kan de interactie met de docent en medeleerlingen worden bevorderd?

Nederland werkt massaal thuis tijdens de coronacrisis. Daarmee komen technologieën die werknemers op de werkvloer al in de gaten kunnen houden, nu ook onze huiskamers binnen.

Promotor: Prof.dr. E. Eliel, Co-Promotor: M.J.A. de Dood

Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).

This thesis aims to improve the detection from ultra-weak single emitter by enhancing their emission properties with plasmonic nanostructures. We exploit the wet-chemically synthesized single crystalline gold nanorods (GNRs) as our basic frameworks in the whole studies, simply because of their unique…

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…

In this thesis, we show how MRFM can usefully contribute to the field of condensed-matter.

Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik

The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.

We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.

Promotor: D. Bouwmeester, Co-promotor: D. Kraft

Surface plasmons (SPs) are surface waves at the interface between a dielectric and a good metal, and are formed by the interaction between light and the free electrons at the metal-dielectric interface. They provide strong field confinement for optical fields, opening new possibilities for enhanced…

This thesis presents insights from our study of various correlated electron systems with a scanning tunneling microscope (STM). In ordinary metals, electron-electron interactions exist, but get substantially screened due to the sheer number of electrons.

The thesis describes the use of electron paramagnetic resonance (EPR) spectroscopy, in continuous wave and pulse modes, to address the interaction of α-Synuclein (αS) with membranes and the aggregation of αS.

In this thesis, we develop a novel technique called Optical Near-field Electron Microscopy (ONEM), which aims to combine the advantages of both optical and electron microscopy: the high resolution of electron microscopy and the low sample damage of optical microscopy.

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

Voor dit project duiken wij in het digitale mediagebruik van kinderen tijdens de overgang van de kleuterklas naar groep 3 en onderzoeken wij de impact van het digitale mediagebruik op hun sociale ontwikkeling.

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood

Quantum computing represents a fundamentally new computational paradigm, capable of addressing problems that are intractable for classical computers.