168 zoekresultaten voor “particle optics” in de Publieke website
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Scattering and absorption in 2D optics
Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.
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Quantum Matter and Optics
Onderzoeksgroepen in het Quantum Matter & Optics onderzoeksprogramma onderzoeken elektronische eigenschappen van interacties van materie en lichtmaterie, met de nadruk op quantuminformatie.
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Predicting the future: Predictive control for astronomical adaptive optics
The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.
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Plan B for particle physics: finding long lived particles at CERN
This thesis discusses the discovery potential of Intensity Frontier experiments.
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Lasers, lenses and light curves: adaptive optics microscopy and peculiar transiting exoplanets
Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen
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Silicon pore optics for high-energy optical systems
This thesis examines silicon pore optics (SPO), a technology that exploits silicon wafers from the semiconductor industry to create extremely high quality X-ray optics, by studying its manufacturing process, applications, and prospects.
- Research in Physics, Quantum Matter and Optics (MSc)
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Pharmaceutical Aspects of Subvisible Particles in Protein Formulations
Promotor: W. Jiskoot, Co-promotor: A. Hawe
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From intracluster medium dynamics to particle acceleration
The intracluster medium (ICM) is a hot, tenuous and X-ray emitting gas that pervades galaxy clusters.
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Metastability for low-temperature Kawasaki dynamics with two types of particles
Promotor: W.Th.F. den Hollander, Co-promotor: F.R. Nardi
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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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Novel analytical approaches to characterize particles in biopharmaceuticals
Particles are omnipresent in biopharmaceutical products. In protein-based therapeutics such particles are generally associated with impurities, either derived from the drug product itself (e.g. protein aggregates), or from extrinsic contaminations (e.g. cellulose fibers).
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Stable single molecules for quantum optics and all-optical switches
Promotor: Prof.dr. M.A.G.J. Orrit
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Untangling cosmic collisions: a study of particle acceleration and magnetic fields in merging galaxy clusters
On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.
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Analysis of sub-visible particles in complex injectable formulations
Promotors: W. Jiskoot; G.J. Witkamp, Co-promotor: M.R. Nejadnik
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Probing the properties of dark matter particles with astrophysical observations
It is an established fact that the Standard Model has to be extended to explain the so-called Beyond the Standard Model (BSM) phenomena: dark matter, matter-antimatter asymmetry of the Universe and neutrino flavour oscillations.
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Optoplasmonic detection of single particles and molecules in motion
Detecting nanoscopic objects plays an important role in nanoscience in particular, in the rapidly growing field of nanobiology. The forebear to modern super-resolution microscopy for single molecule investigation, is fluorescence microscopy.
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Merging galaxy clusters: probing magnetism and particle acceleration over cosmic time
In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.
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Duality, bosonic particle systems and some exactly solvable models of non-equilibrium
Promotor: F.H.J. Redig, Co-Promotor: W.T.F. den Hollander
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Two-photon multifocal microscopy for in vivo single-molecule and single-particle imaging
In this thesis we investigated the ability of two-photon multifocal microscopy for single-molecule microscopy in live cells and organisms.
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Michel Orrit
Wiskunde en Natuurwetenschappen
orrit@physics.leidenuniv.nl | +31 71 527 2727
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Two-photon luminescence of gold nanorods: applications to single-particle tracking and spectroscopy
Gold nanorods are biocompatible nanoparticles that present an excellent two-photon signal that can be used to get high spatial resolution inside living cells. Gold nanorods are photostable and therefore can be followed inside cells for long time, with possible applications as trackers in live cells.
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Michel Orrit wint Physicaprijs 2016
De Physicaprijs 2016 is toegekend aan Michel Orrit vanwege zijn baanbrekende werk op het gebied van één-molecuul-spectroscopie.
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hosts: Microbiota-mediated physisorption interactions and particle-specific toxicity
The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.
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Optical cavities and quantum emitters
Optical cavities are useful tools to enhance the interaction between light and matter, which is important to make good quantum emitters. However, it turns out that the cavities themselves (without any quantum emitters) are already interesting objects to study.
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Spinozapremie voor hoogleraar Spectroscopie Michel Orrit
Mede dankzij de Leidse hoogleraar Michel Orrit is het tegenwoordig mogelijk om losse moleculen te bestuderen. Hij liep de Nobelprijs net mis, maar wordt nu alsnog gelauwerd met een belangrijke wetenschappelijke onderscheiding. Op 16 juni ontvangt hij de Spinozapremie van NWO.
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When galaxy clusters collide: the impact of merger shocks on cluster gas and galaxy evolution
Promotor: Prof.dr. H.J.A. Rottgering
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Granular Flows: Fluidization and Anisotropy
Promotor: Prof.dr. M.L. van Hecke
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Beyond Photon Pairs
Promotor: E.R. Eliel, Co-Promotor: M.J.A. de Dood
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Painting with starlight : optical techniques for the high-contrast imaging of exoplanets
This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.
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Smoothly breaking unitarity : studying spontaneous collapse using two entangled, tuneable, coherent amplifiers
The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.
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Random walks in dynamic random environments
Promotor: W.Th.F. den Hollander
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Higgs dynamics in the early universe
In the early universe, the dynamics of the Higgs field can give rise to many interesting phenomena.
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Histone-DNA assemblies in archaea. Shaping the genome on the edge of life
All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).
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The physics of nanowire superconducting single-photon detectors
Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)
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Cavity quantum electrodynamics with quantum dots in microcavities
Promotor: Prof.dr. D. Bouwmeester
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Overdracht Nederlandse bijdrage aan MATISSE-instrument
De ontwikkeling en bouw van de Cold Optics Bench van het MATISSE-instrument dat onder leiding stond van de Nederlandse Onderzoekschool voor Astronomie (NOVA), is afgerond. Deze Nederlandse bijdrage werd op donderdag 10 april 2014 op de Hannover Messe in Duitsland door ir. Felix Bettonvil van de Leidse…
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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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Probing new physics in the laboratory and in space
The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.
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Monitoring and detection of nanomaterials in biological media.
How do nanoparticles bioaccumulate and biodistribute in organisms?
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Photothermal circular dichroism studies of single nanoparticles
In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.
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Anisotropy, multivalency and flexibility-induced effects in colloidal systems
We have studied the impact of particle shape anisotropy, multivalent interactions and flexibility on systems of micron-sized colloidal particles.
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Molecular mystery in space
The space between the stars isn't simply a void; it also contains substances such as methanol and carbon dioxide. So far, chemical theories have been unable to explain how these substances originate under circumstances that should make it impossible. Fedor Goumans has been awarded a Veni subsidy to…
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Quantumnetwerken en quantumsensing
Binnen Quantum Leiden doen verschillende groepen onderzoek naar quantumnetwerken en quantumsensing.
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Lipid mediated colloidal interactions
The lipid membrane is a basic structural component of all living cells. Embedded in this nanometer-thin barrier, membrane proteins shape the membrane and at the same time respond to the shape of the membrane.
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Chemical tools to monitor and control proteasome activities
Promotores: H.S. Overkleeft; G.A. van der Marel Co-Promotor: B.I. Florea
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Foam rheology near the jamming transition
Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe
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Spin dynamics in general relativity
Promotor: J.W. van Holten
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Dynamical Gibbs-non-Gibbs transitions and Brownian percolation
Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez.
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Alexey Boiarskyi benoemd tot hoogleraar
Theoretisch natuurkundige en kosmoloog Alexey Boiarskyi is per 1 oktober benoemd tot hoogleraar.