228 zoekresultaten voor “high-contrast imaging” in de Publieke website
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
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.
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Focal-plane wavefront sensors for direct exoplanet imaging: Theory, simulations and on-sky demonstrations
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…
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Suppressing a Sea of Starlight: Enabling technology for the direct imaging of exoplanets
Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik
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Gold nanorod photoluminescence: applications to imaging and temperature sensing
Promotor: M.A.G.J. Orrit
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Time Domain Imaging of Transient and Variable Radio Sources
This thesis focuses on the study of transient and variable radio sources in the universe.
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Full Professor in Imaging and Visualisation
Wiskunde en Natuurwetenschappen
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Microcoil MRI of Plants and Algae at Ultra-High Field: An exploration of metabolic imaging
This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).
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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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Shape Analysis for Phenotype Characterisation from High-throughput Imaging
We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.
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Imaging polarimetry for the characterisation of exoplanets and protoplanetary discs. Scientific and technical challenges
Promotor: Prof.dr. C.U. Keller
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Imaging of alkyne-functionalized ruthenium complexes for photoactivated chemotherapy
In photoactivated chemotherapy (PACT), a biologically active compound is caged by a light-cleavable protecting group.
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Young suns and infant planets: Probing the origins of solar systems
Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Promotie
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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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Assistant, associate or full professor in Imaging and Artificial Intelligence (1fte)
Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)
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Quantitative live cell imaging of glucocorticoid receptor dynamics in the nucleus
In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.
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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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Uulke van der Heide
Faculteit Geneeskunde
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Painting with starlight: optical techniques for the high-contrast imaging of exoplanets
Promotie
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Sterrewacht Leiden
Sterrewacht Leiden is het sterrenkundig instituut van de Faculteit der Wiskunde en Natuurwetenschappen van de Universiteit Leiden.
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Fons Verbeek over computational bio-imaging op SleutelstadFM
Hoogleraar Fons Verbeek, verbonden aan de informatica- en biologie-instituten van de Universiteit Leiden, heeft de fascinatie om alles wat we niet direct kunnen zien, toch in beeld te brengen. Op SleutelstadFM vertelt hij dat door het omrekenen van 2 dimensionale (2D) beelden naar 3 dimensionale (3D)…
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Harvesting sunlight with plants and microorganisms: imaging and metabolomics with novel microcoil and cryoprobe at ultrahigh magnetic field
Huub de Groot
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Gratis online cursus leert je alles over imaging
Hoe breng je larven van de zebravis microscopisch in beeld? De nieuwe gratis online cursus ‘Imaging the Vertebrate embryo’ leert je er alles over. Leidse promovendi Salomé Muñoz Sánchez en Radoslaw Gora werkten mee aan de cursus.
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Systems microscopy to unravel cellular stress response signalling in drug induced liver injury
Promotor: B. van de Water
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Latest hardware for computer research on medical imaging
The LIACS Media Lab has received a research grant from the worldwide leading graphics hardware company NVIDIA. The grant exists of newly developed hardware utilizing thousands of processors. LIACS researchers will use it to investigate deep learning in understanding imagery from sources such as MRI…
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Paulus Quax
Faculteit Geneeskunde
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Haico van Attikum
Faculteit Geneeskunde
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Lara Wierenga
Faculteit der Sociale Wetenschappen
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
Promotie
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Doris Heinrich
Wiskunde en Natuurwetenschappen
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Antonius Johannes Rabelink
Faculteit Geneeskunde
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Lina van Drunen
Faculteit der Sociale Wetenschappen
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Computational bio-imaging
Oratie
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The Metallophilic Interaction between Cyclometalated Complexes: Photobiological Applications
In this thesis, the researcher developed a nanosystem based on the metallophilic Interaction between cyclometalated complexes.
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Judith Bovée
Faculteit Geneeskunde
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Lioe-Fee de Geus-Oei
Faculteit Geneeskunde
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Mitochondria in chemical-induced toxicity
Chemical-induced organ toxicity is a major concern in the development and use of chemicals, including drugs, pesticides, industrial chemicals and cosmetics. In the last decades, the onset and progression of chemical-induced organ toxicity has been linked amongst others to perturbation of mitochondri…
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Mark van Buchem
Faculteit Geneeskunde
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Computational optimisation of optical projection tomography for 3D image analysis
Optical projection tomography (OPT) is a tomographic 3D imaging technique used for specimens in the millimetre scale.
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Intraoperative fluorescence imaging
Promotie
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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
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Fluorescence imaging during abdominal surgery
Promotie
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Fluorescent Chemical Probes for Clinical Imaging Applications
Lezing
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Diagnosis and classification of axial spondyloarthritis Imaging and non- imaging features
Promotie
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Deformation imaging and three-dimensional echocardiography
Promotie
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Population imaging with resting-state fMRI
Lezing, LIBC Sylvius lecture
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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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Multimodality Imaging for Valvular Heart Disease Characterisation
Promotie