During my PhD research, I studied the photon statistics of light emitted by a microcavity that contains a single quantum dot (QD) on resonance.

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

To study how planetary systems come into existence we study much younger systems still in formation.

This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.

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.

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

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.

Inspired by natural photosynthesis, perovskite-based photoelectrochemical (PEC) systems are being developed for artificial photosynthesis, aiming to enhance solar-to-hydrogen conversion for green energy.

This thesis is a collection of experimental attempts to enhance photoluminescence of fluorescent molecules and quantum dots with single gold nanorods (GNRs) and relevant applications.

Promotores: F.H. van Lunteren, F.P. Israel

Mechanobiology is a major area in biology, however, mechanics is currently a missing element in drug development pipelines. This has led to a high cost for the society. Mechanotoxicity of drugs often appears as a long-term side effect of drugs, and has led to removal of drugs from the market. Furthermore,…

Promotor: T. Schmidt

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

Promotor: Prof.dr. M.L. van Hecke, Co-Promotor: Prof. dr. V. Vitelli

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.

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, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

The CMCB brings together a diverse range of unique expertise in microbial cell biology. Members of the CMCB investigate both model and non-model organisms, bacteria and archaea, pathogens and non-pathogens.

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

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.

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…

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

Archaeometric analysis of glazed pottery assemblages from the Early Byzantine to the Early Modern periods in the Aegean.

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.

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Research in the Jawerth lab focuses on using principles from soft condensed matter physics to understand important biological materials.

There is an urgent need for more physiologically relevant cell culture methods to guide compound selection in pre-clinical stages of the drug development pipeline.

Develop EPR instrumentation and methodology to investigate intrinsically disordered proteins (IDPs).

Leiden University offers you several services related to career orientation and job application skills.

Promotor: A. Kros

For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.

The European Research Council (ERC) has awarded chemist Dr Alexander Kros a Starting Independent Researcher Grant of 1.4 million euro. He will be using the grant to study how molecules penetrate the natural barrier of a cell membrane. If his research is successful, it will in time bring about a revolution…

Applications are invited for a postdoctoral fellowship for up to 6 months, connected to the ERC- funded research project Rethinking Disability at Leiden University, in cooperation with the Netherlands-Flemish Institute in Cairo.

Lecture

Two Leiden scientists - Ignas Snellen and Bernhard Hommel - have been awarded an ERC Advanced Grant. The grant will fund their research over the coming five years on exoplanets and free will.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

In 2025 hebben medewerkers en studenten van de Universiteit Leiden veel mooie prijzen ontvangen en belangrijke onderzoekssubsidies binnengehaald.

The research in the Biosyn group is focused on the design, synthesis and function of the four major types of biomolecules: nucleic acids, carbohydrates, peptides and lipids and hybrid structures thereof. These biomolecules and their derivatives are used in drug discovery and chemical biology, to develop…

As a PhD candidate, you are strongly advised to discuss your budget for travel and other research-related costs with your supervisor and the institute management at the start of your research in order to be able to plan your work well and to avoid unpleasant surprises. Please note that all travel must…

Coordination chemistry is the chemistry of metal atoms

Pushing the boundaries of quantum theories – that’s exactly what the physicists at Leiden University excel at. Researchers in Leiden are launching eight new quantum research projects as part of the Quantum Limits consortium.

Promotor: M. Franx, Co-Promotor: I.F. Labbé

Promotor: E. Bouwman, Co-Promotor: S. Bonnet

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.

Systems with local constraints is a new finding in recent researches on complex systems. The heterogeneous spatial interactions and the temporal dependencies among those numerous units make it difficult to describe by traditional statistical physics.

Leiden has a strong tradition in theoretical physics, thoroughly linked with experimental disciplines.

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

Promotores: A.H. Meijer, H.P. Spaink