339 search results for “optical tweezers” in the Public website
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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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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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Cross-talk between stagnation points in flow and orientation
Publication in Proceedings of the National Academy of Sciences.
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New ONEM Microscope to combine best of two worlds
Leiden physicists have been awarded 1.5 million euros for developing a hybrid microscope that provided nanometer-resolution. 'The idea is to combine the resolution of electron microscopy with the pros of optical microscopes.'
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MSc Research Presentation Tobias de Jong 23 August @ 16:00
The project has been done in the Quantum Matter Optics under the supervision of Dr.ir. Sense Jan van der Molen and Dr. Johannes Jobst. The title of the presentation is:
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MSc Research Presentation Martijn van Velzen, 29 January @13:30, Oort 173
The project has been done in the Quantum Matter & Optics group under the supervision of Prof.dr.ir. Tjerk Oosterkamp.The title of the presentation is:
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MSc Research Presentation Charlotte Jansen 22 September @ 12:00 hrs, Oort 173
The project has been done in the Quantum Matter and Optics group under the supervision of Prof.dr.ir. T.H. Oosterkamp and Dr.ir. S.J. van der Molen . The title of the presentation is: ''Friction of ice skating.
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MSc Research Presentation David Kok 24 August @ 16:00
The project has been done in the Quantum Matter Optics group under the supervision of Dr. Wolfgang Löffler and Prof.dr. Carlo Beenakker. The title of the presentation is:
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MSc Research Presentation Snigdh Sabharwal 23 October @ 11:00
The project has been done in the Quantum Optics group under the supervision of Dr. Jan Willem Dalhuisen. The title of the presentation is: ''Hopfions in curved spacetime.
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MSc Research Presentation Wico Breimer 8 September @ 14:00
The project has been done in the Quantum Matter Optics group under the supervision of Prof. dr. Tjerk Oosterkamp and Dr. L. Bossoni. The title of the presentation is:
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MSc Research Presentation Arjo Andringa 6 December @ 09:15 hrs, Oort 173
The project has been done in the Quantum Matter Optics group under the supervision of Dr.ir. Sense Jan van der Molen. The title of the presentation is: ''A Technique for Studying Surface Profiles of Two-Dimensional Materials in LEEM.
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John van Noort appointed Professor in Biophysics
Leiden University has appointed John van Noort as Professor in Biophysics. He studies the way in which our DNA is folded and read out.
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Working at the Faculty of Science
Working for a top faculty? Discover the vacancies at the Faculty of Science and apply immediately.
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Research methods
Because we cannot directly ask babies about what they know or what they are thinking about, we must find smart and baby-friendly ways to figure it out! Below you can read about the different methods that we typically use in our studies.
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Discovering and developing drugs
Improving healthcare with our scientific discoveries: that is the goal of pharmaceutical research at Leiden University. And there’s a lot involved in that. Our research starts with the discovery of the effect achieved by a particular substance, and sometimes continues all the way through to the development…
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Surface and Interface Science
The nanoscale structure of a catalyst under reaction conditions determines its activity, selectivity, and stability. For the production of sustainable energy and materials, new catalysts are needed. By understanding the structure-activity relationships of catalysts under reaction conditions, insight…
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Solid State NMR and modelling of photoinduced energy and electron transfer
Huub de Groot is professor in Biophysical Organic Chemistry. With his team he works in the field of photosynthesis and artificial photosynthesis. The molecular basis for photosynthesis is formed by protein complexes and organelles that contain chlorophyll molecules. The antenna systems herein capture…
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PROPER: ‘Near-patient’ prostate cancer models for the assessment of disease prognosis and therapy
How to identify patients at risk of developing devastating, metastatic disease and facilitate the development of personalised treatment for prostate cancer patients?
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Physics (MSc)
The master’s programme Physics at Leiden University offers a wide range of specialisations from theoretical research to cosmology. You will be trained for a career in research or for a more practical-oriented specialisation. The programme offers a wide choice of individual study paths that take into…
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Nobel Prize winner Nicolaas Bloembergen (97) has passed away
We learned of the passing away of Nicolaas Bloembergen, Nobel Prize winner in Physics (1981) at the age of 97.
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Physicist Michel Orrit new member KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit.
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Multimessenger astronomy to study the structure of Milky Way
For centuries, astronomers have studied the universe by collecting light signals. Since 2015, the confirmation of an important prediction of Einstein allows us to explore the universe in a new way: through gravitational wave radiation. Astronomy PhD candidate Valeriya Korol proposes to use these gravitational…
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Gazing into deep space
Bernhard Brandl, the new Leiden Professor of Infrared Astronomy, is developing instruments for the world’s largest telescopes. These telescopes can be used to observe objects in space that are more than 13 billion years old. Brandl will deliver his inaugural lecture on 26 September.
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Visualising the nanoworld
Visualising cell proteins without invasive techniques is possible with the help of fluorescence. During a lecture of the Natuurwetenschappelijk Gezelschap Leiden on 18 January, winner of the Spinoza Prize 2017 and founder of the field of single molecule optics Michel Orrit explained how this works.
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Royal honour for astronomer Tim de Zeeuw
Leiden astronomer Tim de Zeeuw has been appointed Knight in the Order of the Dutch Lion. He received the distinction on 14 May to mark his departure as Director General of the ESO European Astronomy organisation. The celebration took place during the 2018 Dutch Astronomers Conference in Groningen.
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In Memoriam - Joan van der Waals
On 21 June, our beloved colleague Joan van der Waals passed away after a long and rewarding life.
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Physicists image individual molecules by watching them absorb light
Molecules are extremely hard to see in visible light, especially without using fluorescence. Leiden physicists have now made their optical technique sensitive enough to image the molecules of their interest in all sizes. Publication in Nanoletters.
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The hunt for an earth-like exoplanet
Astronomer Frans Snik searches for extraterrestrial life. He doesn’t so much look at stars as at the ‘exoplanets’ alongside them.
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Here is how you can help astronomers to identify black holes
Scientists are asking your help to find the origin of hundreds of thousands of galaxies that have been discovered by the largest radio telescope ever built: LOFAR. Where do these mysterious objects, which extend for thousands of light-years, come from? A new citizen science project called LOFAR Radio…
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Magnifying the minute
Making all those things we normally cannot see visible is the challenge that fascinates Fons Verbeek, Leiden's new Professor of Computational Bio-Imaging. Contributions from chemistry, optics and in particular computational sciences to making and processing these images give greater insight into the…
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Light on the quantum computer
Physicist Martin van Exter works with light at nanoscale, at the forefront of nanocomputer research. But as Director of Education he also has a vision for physics teaching. Inaugural lecture 18 November.
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The IBL at Science Center NEMO
Professor Annemarie Meijer and several students explained to more than 8000 visitors the zebrafish as a model for research during the National Weekend of Science (3-4 Oct) at Science Center NEMO in Amsterdam.
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Innovation Attaché Network visits Leiden
Attachés from the Innovation Attaché Network (IAN) visited Leiden University to meet with researchers working on Artificial Intelligence (AI) and to become more familiar with what Leiden, Leiden University and the LUMC have to offer to possible partners abroad.
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FET Open Grant for Many Photon Entanglement
The Leiden Institute of Physics (LION) is the coordinating partner in the Qluster research project, which was awarded a 2,9 million euro FET Open grant by the European Union. The three-year project, which started on 1 December 2019, aims to produce many photon entanglement to aid quantum communication…
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Company visit Cosine
On the 10th of October, several students from SBB went to visit cosine measurement systems in Warmond for a presentation, tour and case afternoon.
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LION Summer School: Modern Physics at all Scales
From 16 to 26 July, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.
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Michel Orrit and Hermen Overkleeft members KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit and chemist Hermen Overkleeft.
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Physics Summer School kicks off
From July 22nd to August 1st, the Leiden Institute of Physics organizes its annual summer school, titled ‘Modern Physics at all Scales’.
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Media | Art | Politics (MAP)
The Leiden Lectures in Media | Art | Politics (MAP) is a series of talks organized by Pepita Hesselberth and Yasco Horsman. Speakers from various academic backgrounds and in different stages of their careers reflect on diverging ways in which technological and social changes challenge and transform…
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Metals for Catalysis and Sustainability
Central in coordination and organometallic chemistry is the synthesis of new chelating ligands, the synthesis and characterization of metal complexes with these ligands, and the study of their properties. An important goal in my research is to create understanding of the relation between the structures…
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PhD candidate: HiTaL: High Throughput Anisotropic Lithography
Science, Leiden Institute of Physics (LION)
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Van Marum Colloquia
The "Van Marum Colloquia" are a collaborative lecture series between the LION and LIC institutes, focusing on fundamental and applied surface science.
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Application procedure
The application procedure is broken down into three parts.
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Marco Beijersbergen fellow of the Netherlands Academy of Engineering
Cosine Marco Beijersbergen has been appointed as one of the distinguished 62 fellows of the Netherlands Academy of Engineering (NAE). With these fellows, the NAE emphasises the importance of technological innovation for sustainable social change. The inauguration is on 13 November.
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Neutrino telescope KM3NeT receives 12.7 Million Euro NWO grant
KM3NeT is selected as one of the ten top research facilities in NWO’s National Roadmap for Large-scale Research Infrastructure. Leiden physicist Dorothea Samtleben is the deputy program leader of Nikhef’s KM3NeT group.
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Winner Physics Image Award is Volkskrant Image of the Week
Vera Meester has won the annual Physics Image Award 2016, with her photo of 'smiling' colloids. The Volkskrant published the picture as Image of the Week.
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Prof. Marin van Heel awarded Wiley Prize in Biomedical Sciences 2017
Prof. Dr. Ir. Marin van Heel, Emeritus Professor at the Institute of Biology Leiden (NeCEN), is one of the winners of the “Wiley Prize in Biomedical Sciences 2017”. This annual award is presented to recognize contributions that have opened new fields of research or have advanced concepts in a particular…
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‘SRON and South-Holland can reinforce each other well’
SRON Netherlands Institute for Space Research is moving. In 2021, the Utrecht branch will settle in South-Holland. Pieter Dieleman is group leader at SRON. He tells why the upcoming move is such a good idea: ‘SRON is a connecting factor between Delft and Leiden.’
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White blood cells in transparent embryos
Leiden molecular cell biologists in the research group of Annemarie Meijer have discovered novel early macrophage-specific genes in zebrafish, including a signal transducer pivotal for the migration of macrophages in the innate immune response to bacterial infection. Their findings were published on…
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Delegation from Leiden University forges new links in Brazil
A delegation from Leiden University is visiting Brazil from 14 to 18 March. The first day of the visit was spent with scientists in São Paolo.