410 search results for “optical fiber” in the Public website
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Cosmic particle acceleration by shocks and turbulence in merging galaxy clusters
In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).
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The structure of the dusty cores of active galactic nuclei
Promotor: W. Jaffe, Co-promotor: K. Meisenheimer
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Bioorthogonal Labeling Tools to Study Pathogenic Intracellular Bacteria
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.
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Magnetic imaging of spin waves and magnetic phase transitions with nitrogen-vacancy centers in diamond
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.
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Research
Physicists at the Leiden Institute of Physics (LION) conduct fundamental research into physical phenomena. They are inspired by curiosity and the desire to know more about the world in which we live. This research has always paved the way for new practical applications. These are something that the…
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Why Leiden University?
The Physics and Casimir pre-PhD specialisation is a programme to prepare you for pursuing a PhD-degree. The Casimir Research School is a joint programme offered by the Leiden Institute of Physics (LION) and the Kavli Institute of Nanoscience at Delft University of Technology.
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A new window on the Universe
Rottgering
- Why Leiden University?
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Online Museum Talk: The Making of "Van Eyck. An Optical Revolution" at the Museum of Fine Arts Ghent
Lecture, Online Museum Talks
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Mononuclear spin-transition materials based on the bapbpy scaffold
Promotor: E. Bouwman, Co-Promotor: S. Bonnet
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Prepare for your studies
You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start as you embark on your studies at Leiden University.
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Assembling anisotropic colloidal building blocks
This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.
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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
- Application deadlines
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Microfluidic 3D cell culture for high throughput screening
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.
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Testing gravity on the largest scales with kids and friends
What are the 'dark' components of the universe?
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Photosynthetic light reactions at the gold interface
Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese
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Exploring future multi-messenger Galactic astronomy
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.
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Single cell technologies for mechanobiology and mechanopharmacology
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,…
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Theoretical Physics
Leiden has a strong tradition in theoretical physics, thoroughly linked with experimental disciplines.
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Research
Research at Leiden Observatory spans the full width of modern astrophysical enquiry. It is based on observation, theory, simulation, and experiment. Two broad clusters characterize the ongoing research. Within each theme, researchers carry out their personal and specialized research programme. The two…
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Rubicon for Physicist Jelmer Renema
Physicist Jelmer Renema will spend two years conducting research at Oxford University in Great Britain funded by a Rubicon grant from NWO.
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Bernhard Brandl
How do massive stars form? What molecular species hide in the Martian atmosphere? Are there Earth-like exoplanets in habitable zones? These questions can be answered using the Extremely Large Telescope (ELT), which will be built over the next six to seven years. ‘To make these future discoveries possible,…
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Structure and regulation in photosynthesis
Plants, algae and cyanobacteria have the amazing capacity to perform delicate photophysical and photochemical processes of light capture, excitation transfer, charge separation and catalysis in fluctuating living environments. As a consequence, photosynthetic proteins and membranes form dynamic architectures.…
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Sense Jan van der Molen Lab (Physics of Quantum Materials)
In our lab, we investigate the physics and material properties of low-dimensional systems.
- Quantum Information
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Michiel de Dood Lab (Quantum Detection)
Our group explores the larger domain of quantum measurement. In particular we investigate two themes that are closely connected: The detection of specially prepared quantum states of light and understanding and characterizing quantum photon detectors.
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Required documents
When you apply for admission, you’ll be asked to submit several documents.
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Research in Physics, pre-PhD ('Casimir') (MSc)
The Casimir pre-PhD programme at Leiden University prepares you for a PhD position in physics. If focuses on six research themes: Molecular Biophysics, Physics of nanostructures, Quantum Matter and Functional Materials, Quantum Information and quantum optics, Universe physics; theory and instrumentation,…
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Why Leiden University?
The programme will give you the opportunity to choose from a broad range of topics to study. You will be part of an international multidisciplinary research team at the LION.
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Extra-curricular
Are you interested in taking up an extra challenge during your master’s programme? Have you thought about applying for our Summer School programme or are you interested in developing your personal leadership style?
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Unlocking the chemistry of the heavens
How are the building blocks of life formed?
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Single gold nanorods in live cells
Visualization of biomolecules in living cells by tagging with gold nanoparticles.
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OMERO
From the microscope to publication, OMERO handles all your images in a secure central repository. You can view, organize, analyze and share your data from anywhere you have internet access. Work with your images from a desktop app (Windows, Mac or Linux), from the web or from 3rd party software. Over…
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Key publications
Key publications of the Medical Systems Biophysics and Bioengineeringgroup (Mashaghi Lab)
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Back to the source
Provenance and distribution of raw materials
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What is the shape of cells?
Cells in our body are constantly performing small tasks, such as repairing wounds. They exert force by changing shape. But how do cells translate their shape into exerting a force in a specific direction? Experimental and theoretical Leiden physicists have now found a clue to answer this question. Cells’…
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Investigations of Radiation Pressure: Optical side-band cooling of a trampoline resonator and the effect of superconductivity on the Casimir
PhD Defence
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Michel Orrit Wins Edison Volta Prize
The European Physical Society has awarded the prestigieus Edison Volta Prize to Leiden physicist Michel Orrit. The prize is handed out every two years to an individual or a group of at most three scientists as an acknowledgment of an outstanding achievement in physics research.
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More insight with light
The new programme Synoptic Optics, funded by the NWO Domain Applied and Engineering Sciences, will develop new optical techniques. Researcher Frans Snik and Professor of Experimental Astrophysics Christoph Keller from Leiden Observatory will test novel approaches to monitor air pollution and discover…
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How deep is a mirror?
Light reflects from a mirror, but where exactly does this reflection happen? Well, it depends, Martin van Exter and Corné Koks discovered. Their precise calculations, published in Optics Express, are important for designing optical cavities for quantum communication.
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DNA folded in compliant helix
In an Advance Online Publication biophysicist John van Noort and others show using magnetic tweezers that DNA is folded in compliant helices of chromatin. This allows enzymes access to the DNA needed for gene expression. Van Noort's research group made the discovery in close partnership with researchers…
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This Week’s Discoveries | 30 May 2017
Lecture
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Spinoza Prize for Michel Orrit, Professor of Spectroscopy
It is partly thanks to Leiden professor Michel Orrit that we are today able to study individual molecules. He just missed winning a Nobel Prize, but is today the recipient of another important scientific award: NWO’s prestigious Spinoza Prize.
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Admission requirements
To be eligible for Research in Physics, Quantum Matter and Optics at Leiden University, you must meet the following admission requirements.
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Exploring the Universe
Astronomers want to understand the Universe, from the Big Bang to the present day, and what the future will hold. In Leiden they focus on two key questions: ‘How did stars and planets originate’ and ‘How were galaxies and black holes formed in the young Universe?’ A new generation of telescopes – just…
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Scientific research with any smartphone camera
Although smartphones and other consumer cameras are increasingly used for scientific applications like citizen science, it’s still difficult to compare and combine data from different devices. PhD student Olivier Burggraaff developed a new easy-to-use standardised method which makes it possible for…
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Telescopes
The Old Observatory houses four historical telescopes. On this page you can learn more about them.
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Cheianov Group (Quantum Many Body Physics in Condensed Matter and Ultracold Atomic Systems)
The research in my group addresses a range of topics related to quantum many-body physics.
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Student life
Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.