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Transcription of the second episode of the first season Nic: Hi guys, his is season one, episode two, of the Meridian. We are coming to you from Lund Observatory, in southern Sweden, on October 1st 2021, as we gear up to celebrate Culture Night this weekend. Crossing our local meridian in this episode we have Josefin Martell here, who studies impact craters on Earth and prepares for investiga
https://www.astro.lu.se/meridian-s01e02 - 2026-05-29
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https://www.astro.lu.se/form/srs-2022-registration - 2026-05-29
Transcription of the third episode of the first season Nic: Welcome, this is season one episode three of the Meridian, a podcast exploring the ins and outs of what's happening here at Lund Observatory. This episode is airing on the 8th of October 2021, but if there are any listeners out there discovering the Meridian at a later date, then we just want to welcome you and hope that you find our ba
https://www.astro.lu.se/meridian-s01e03 - 2026-05-29
Transcription of the fourth episode of the first season Nic: This is season one, episode four, of the Meridian, our brand new podcast. We are coming to you on today on the 15th of October, from Lund Observatory. The nights are getting darker here on the northern hemisphere as we get closer into autumn and star gazing can take place again. Crossing our local meridian in this fourth episode we
https://www.astro.lu.se/meridian-s01e04 - 2026-05-29
The Vision Mission Summary The Consortium Science and technology roadmap for μas studies of the Milky Way The Art of Astrometry and Computation All-Sky Visible and Near Infrared Space Astrometry Science Cases All-sky NIR astrometry to peer through the dust of the Milky Way to reveal the hidden regions of the Galaxy.All-sky visible astrometry to combined with the older Gaia catalogue and a 20 year
https://www.astro.lu.se/GaiaNIR - 2026-05-29
Welcome to the Division of Synchrotron Radiation Research The Division of Synchrotron Radiation Physics has about 60 employees and covers a wide range of research topics that are interlinked with each other as well as to research groups in Lund, Sweden, and internationally. We perform experimental studies of physical, chemical, structural, and dynamical properties of materials, especially at surfa
https://www.sljus.lu.se/start - 2026-05-29
Do your project at the Division of Synchrotron Radiation Research! Bachelor's and Master's projects are available in all research fields of the Division. Please feel free to contact the corresponding project leader or any other member of the group for more information. A large part of our research is performed at the MAX IV Laboratory. In addition, we are using several international synchrotron fa
https://www.sljus.lu.se/education/bsc-msc-projects - 2026-05-29
Safety requires everyone's responsibility and awareness. Safety work at the Division of Synchrotron Radiation Research is regulated at three levels:General RegulationsThe "General Regulations" are relevant for everyone working at the division. Specific Safety RegulationsThe "Specific Safety Regulations" are relevant for everyone working in the laboratories of the division, i.e. the Scanning Probe
https://www.sljus.lu.se/safety-information-employees - 2026-05-29
Our research concerns the intersection of nanoscience and X-ray science. We use X-rays to investigate nanostructured devices, and we develop nanostructures as X-ray detectors. We have a strong collaboration with the Nanomax beamline at MAX IV, and we also visit other synchrotrons for experiments. Most of the projects also involve colleagues in NanoLund, and we are frequent users of the Lund Nano L
https://www.sljus.lu.se/jesper-wallentin-0 - 2026-05-29
Metal halide perovskites are most famous for their rapid development in solar cells, but they are also promising materials for X-ray scintillation detectors. We are synthesizing CsPbBr3 nanowire arrays using solution growth, by using anodized aluminum oxide nanopores as templates.Our first paper in this project showed that the nanowires have an impressive stability to air exposure, with samples ex
https://www.sljus.lu.se/growth-metal-halide-perovskite-nanowires-x-ray-detection-applications - 2026-05-29
We have discovered a method to grow free-standing vertically aligned CsPbBr3 metal halide perovskites [Zhang 2022]. Part of the nanowires can be converted to blue-emitting CsPbCl1.1Br1.9. MHPs are soluble in polar solvents, which makes normal lithography processing schemes difficult to use. However, we have found a method to perform electron beam lithography (EBL) using only non-polar solvents [La
https://www.sljus.lu.se/free-standing-metal-halide-perovskite-nanowires-devices-and-heterostructures - 2026-05-29
Traditional X-ray detectors use bulk crystals, which limits their resolution. In this project, financed by an ERC Starting Grant, we are developing vertical arrays of nanowires as high-resolution X-ray detectors. We have shown that X-rays can be detected by single nanowires, with much higher spatial resolution than commercial systems [Chayanun 2020].X-rays that are absorbed in a semiconductor exci
https://www.sljus.lu.se/nanostructured-x-ray-detectors-and-x-ray-beam-induced-current-xbic - 2026-05-29
X-ray diffraction can be used to study strain, piezoelectricity and heating in crystalline samples. Modern X-ray optics can reach well below 100 nm focus size, and with coherent phase retrieval methods the spatial resolution can reach around 10 nm. Hard X-rays can penetrate through thick samples, allowing measurements of operational devices [Wallentin 2016]. We use such methods to investigate a wi
https://www.sljus.lu.se/nanoscale-coherent-x-ray-diffraction - 2026-05-29
We have recently shown that it is possible to image ferroelastic domains inside nanowires of the metal halide perovskite CsPbBr3 [Marcal 2020] [Marcal 2024]. High temporal resolution can be achieved with full-field methods [Marcal 2022]. A presentation by Lucas Marcal on these results can be found here. Similar methods can be used to image ferrolastic domains induced by AFM [Marcal 2021]. We als
https://www.sljus.lu.se/x-ray-imaging-ferroic-domains - 2026-05-29
In this project, we have built a phase contrast X-ray tomograph based on a microfocus Cu source. Traditional X-ray imaging is based on absorption contrast, which has poor contrast for small and weakly absorbing samples. Much better contrast can be achieved using phase contrast [Dierks 2020]. The system is based on a microfocus X-ray source with a Cu target, a high-resolution detector and a high-pr
https://www.sljus.lu.se/phase-contrast-tomography - 2026-05-29
SummaryLight is indisputably at the origin of life on earth, driving all photo-chemical reactions in atmosphere, biological systems, and “man-made" energy related materials. On the atomic scale level, we can describe these photo-chemical reactions, through a multitude of elementary processes occurring on the ultrafast time scale (from sub femtosecond to picosecond) where the initial energy/light h
https://www.sljus.lu.se/research-landing-page/ultrafast-dynamics-small-quantum-systems-sqs - 2026-05-29
SummaryTechnical and industrial relevant chemical processes such as catalysis and electrochemistry occur at solid surfaces in complex environments in terms of material composition, pressure, temperature and medium. As a consequence, the atomic scale structure and the environmental composition close to the active material which governs the chemical processes are notoriously difficult to determine.T
https://www.sljus.lu.se/research-landing-page/catalysis-and-electrochemistry - 2026-05-29
Summary Electron spectroscopy has provided much of our current knowledge on the chemical and physical processes involved in the complex interactions between a solid surface and its surroundings. Such processes are for example important for surface catalysis, corrosion and thin film growth.As the surface state depends strongly on its environment, it is vital that such studies are performed under re
https://www.sljus.lu.se/research-landing-page/ambient-pressure-xps - 2026-05-29
Summary The interactions of electrons in materials are a rich and complex source of physical problems, in part due to the issues brought about by dealing with the large number of electronic many-body interactions, both with other electrons and with the parent ions. These interactions give rise to fundamentally quantum mechanical states such as superconductivity and magnetism. New quantum states
https://www.sljus.lu.se/research-landing-page/magnetism-and-superconductivity - 2026-05-29
SummaryWe develop and use methods for analysis of nanostructures with highest possible spatial and temporal resolution. One aim of this research is to understand the role of the surfaces and interfaces for their function and properties. Another goal is to study devices under as realistic conditions as possible. The aim is both fundamental physical understanding as well as enabling the design of no
https://www.sljus.lu.se/research-landing-page/semiconductor-nanostructures - 2026-05-29
