50 search results for “optics tweezers” in the Student website
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Biological Origami at molecular level: folding a single protein
Human cells are protecting their proteins from unfolding and aggregating. That's what biophysicist Alireza Mashaghi and his team discovered after seven years of in-depth research into the folding mechanisms of proteins. With an unprecedented approach, the team was able to study the folding of a single…
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Dirk Bouwmeester
Science
bouwmeester@physics.leidenuniv.nl | +31 71 527 5892
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Stiffness and viscosity of cells differ in cancer and other diseases
During illness, the stiffness or viscosity of cells can change. Tom Evers demonstrated this by measuring such properties of human immune cells for the first time. ‘The stiffness of certain cells could be a way to make a diagnosis,’ Evers said. He defended his thesis on March 26th.
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Michel Orrit
Science
orrit@physics.leidenuniv.nl | +31 71 527 2727
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A first in the lab: a tiny network that is both strong and flexible
Daniela Kraft's group has succeeded in creating a network of microparticles that is both strong and completely flexible. This may sound simple, yet they are the first in the world to succeed in doing so. A real breakthrough in soft matter physics.
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Huub Rottgering
Science
rottgering@strw.leidenuniv.nl | +31 71 527 5851
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Tom van der Reep
Science
reep@physics.leidenuniv.nl | +31 000 5896
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Bernhard Brandl
Science
brandl@strw.leidenuniv.nl | +31 71 527 5830
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Amin Moradi
Science
moradi@physics.leidenuniv.nl | +31 71 527 2727
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This is how physicists use light to build complex structures
Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.
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Robert Smit receives his PhD with distinction. ‘I am happy to be back in the lab’
An all-optical transistor, a molecule-sized sensor and a new kind of single-photon source for quantum communication. All dreamed applications of fundamental physics that are one step closer thanks to Robert Smit. On 12 June, he defended his PhD thesis with distinction.
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Programme
When deciding what to study you undoubtedly read a lot of information about your study programme. Leiden University employs various systems to provide information about programmes and courses and to facilitate communication between lecturers and students.
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Internship and research
Many study programmes offer the opportunity to do an internship or research project, either as a compulsory part of the curriculum or to earn elective credits.
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Design METIS instrument for the Extremely Large Telescope finalised
The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…
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New perspective in quantum mechanics and better sleep for PhD students
Besides physics, the sleep of PhD students also benefits from Vitaly Fedoseev's PhD research. He will receive his doctorate on July 7 for his work on optomechanics within quantum mechanics. And also on a setup that eliminated the need for PhD students to push a button every hour for 72 hours.
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Msc Thesis presentation Hidde Kanger on Wednesday 27 March @ 14h00 pm, room GM4.13
Education
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MSc Research presentation Yasmin Doedes on Wednesday 17 May @13h30 in HL207
Education
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MSc Research presentation Lisa van Leeuwen on Friday 21 July @ 9h30 in HL204
Education
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MSc Research presentation Roya Ahemeh on Friday 31 March @11h00, using Zoom
Education
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Msc Thesis presentation João van der Ven on Tuesday 9 July @ 4 pm via Zoom
Education
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X-ray mirrors: useful in space, but also for radiation therapy
A special type of mirror to reflect X-rays has more possible applications than space research. Targeted radiation therapy for cancer, for example. Next to his full-time job, physicist David Girou mapped out the possibilities. He will receive his PhD on 14 June.
- Media | Art | Politics (MAP)
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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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Temporary 'viewing wall' gives a glimpse of next phase of Gorlaeus Building
You probably already noticed: work on the next phase of the Gorlaeus Building is in full progress. Are you curious to see what it will look like? Then come to the atrium of the Gorlaeus Building. A temporary 'viewing wall' makes it look as if you are looking into the new part of the building.
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Today’s experimental quantum research at Leiden University: from the microscopic to the macroscopic
Lecture, Studium Generale
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In memoriam Harold V.J. Linnartz 1965 – 2023: Unlocking the Chemistry of the Heavens
With great sadness we share the news that Prof. Harold Linnartz passed away suddenly and unexpectedly on Sunday 31 December 2023. We are all in shock, and our thoughts are with his wife and children, other family, and friends. Harold was at the heart of our institute, as a researcher, as a supervisor,…
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Webb data suggest potential atmosphere around rocky exoplanet
Researchers using NASA’s James Webb Space Telescope may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth. This is the best evidence to date for the existence of any rocky planet atmosphere outside our solar system.
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New research project makes the internet even better
How is it that the internet works so well, with billions of users sending millions of gigabytes all together every day? That's because the foundation of the internet is solidly set up. Yet sometimes there are problems on the internet. For example, when certain systems misbehave and disrupt the routing…
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Radio astronomers bypass disturbing Earth's atmosphere with new calibration technique
An international team of researchers led by astronomers from Leiden University (the Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed the disturbances of the Earth's ionosphere. They used the new method to study…
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Planet-forming discs around young low-mass star differs fundamentally from one around sun-like star
Using the James Webb Space Telescope, an international team of researchers, including Leiden Professor of Molecular Astrophysics Ewine van Dishoeck, has discovered a palette of hydrocarbons in a planet-forming disc around a young, low-mass star. The results confirm that discs around very lightweight…
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Internships and research in the Netherlands
How can you find an internship or research project and what arrangements do you need to make?
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Astronomers spot benzene in planet-forming disk around star for first time
An international team of astronomers including Leiden professor Ewine van Dishoeck has observed the benzene molecule (C6H6) in a planet-forming disk around a young star for the first time. The observations tell us more about the forming of planets in this disc, like our own Earth. The scientists publish…
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Dust cloud from two colliding ice planets dims light of parent star
For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…
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Space telescope Euclid makes first test images - astronomers are full of anticipation
The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…
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Leiden quantum technology research very successful in funding call
No less than six Leiden projects received a grant for quantum research from the national growth programme Quantum Delta NL and the NWO. After all, in order to boost quantum technology not only industry is needed, but also science. Research towards new sensors, faster algorithms and quantum materials,…
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BlackGEM telescopes begin hunt for gravitational-wave sources
Three Dutch-Belgian telescopes have started operating at the ESO La Silla Observatory in Chile. This so-called BlackGEM array will scan the southern sky to hunt for cosmic events that produce gravitational waves, such as mergers of neutron stars and black holes. Leiden astronomer Rudolf le Poole is…
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Jasper's Day
Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.
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Vidi grants for eight researchers from Leiden University
Eight scientists from Leiden University have been awarded a grant by the Dutch Research Council (NWO). With this Vidi funding, the researchers can set up an innovative line of research and further expand their own research group over the next five years.
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Chemotherapy without side effects? It’s possible, with light
Nausea, neurologic pain and hair loss: some of the severe side effects of chemotherapy. Not necessary, biochemist Liyan Zhang showed. Together with Leiden biologists and others, she achieved great results with a drug that is only active in combination with light. Zhang will defend her PhD on 4 July.
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Jasper's day
Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.
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After the launch of the next big space mission: ‘This is a big step towards understanding dark matter and dark energy.’
Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.
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Is there oxygen on exoplanets? New telescope finds out
To what extent does exoplanet Proxima b resemble our Earth? And is there some form of life present? Astronomers hope to find answers to these questions with the new European Extremely Large Telescope (ELT). An NWO research grant of €18 million will allow a Dutch consortium to continue building instruments…
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Surprise: No methane on the night side of exoplanet WASP-43b
The night side of exoplanet WASP-43b, to the surprise of astronomers, does not appear to contain methane. It is likely that extreme winds do not allow enough time for methane to form in detectable amounts. This is the conclusion of an international team of scientists, with Leiden and Amsterdam contributions,…
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Jasper's day
Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life. Jasper first wrote his column from Kuala Lumpur, and it was ready to share. Then a crisis arose this week that demanded…
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The quest for the magic angle
Stack two layers of graphene, twisted at slightly different angles to each other, and the material spontaneously becomes a superconductor. Science still can't explain how something so magical can happen, but physicists use special equipment to reveal what is taking place under the surface.
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Quantum & Society Research Colloquium Series: 'Quantum for High-School Students and Teachers'
Lecture
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ESA presents first crystal-clear Euclid photos of the cosmos
The first full-colour images of the cosmos from ESA's space telescope Euclid were presented today. Never before has a telescope been able to take such crystal-clear astronomical images of such a large part of the sky and so far into the deep universe. The five images illustrate Euclid's full potential;…
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Career College: To PhD or not to PhD?
Career and apply for jobs
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Kress Talks with Cynthia Kok and Felicity Good
Lecture
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To do a PhD or not to do a PhD? Speed date about it with alumni!
Career and apply for jobs