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A misaligned stretcher or compressor in a chirped pulse amplification laser introduces residual angular dispersion into the beam, resulting in temporal distortion of the pulse. We demonstrate that an imaging spectrograph is capable for Measuring the angular dispersion of a laser beam by an accuracy of 0.2 murad/min. Using this technique, the analytical expressions of residual angular dispersion of
21 september 2026 12:00 till 23 september 2026 17:00 | Konferens TR+ Conference 2026: From Statics to Dynamics, 21–23 September 2026 at MAX IV. Registration Deadline: August 20 Join researchers from across structural biology, chemistry, physics, and synchrotron science to explore how time-resolved techniques are revealing the dynamic processes that govern biomolecular function. For the latest prog
https://www.lu.se/evenemang/tr-conference-2026-static-dynamics - 2026-09-06
Interactions between physical bodies constantly affect their properties. This thesis presents a theoretical study on the effects of interaction in few-body nanowire quantum dots. The focus is to a large extent on a phenomenon called Wigner localization, and how this, as well as other interaction effects, can be identified in an experiment by transport spectroscopy and by thermopower measurements.
5 november 2025 09:30 till 12:00 | Welcome to a two-hour symposium to discuss recent developments and historical perspectives on human rights and environmental politics together with civil society actors and scholars in the Lund University’s Human Rights Profile Area. This event will focus on recent backlashes against human rights and environmental politics and explore the underlying reasons for i
https://www.lu.se/evenemang/human-rights-and-environmental-politics-recent-developments-and-historical-perspectives - 2026-09-06
Ultra-violet angle-resolved photoemission spectroscopy (UV-ARPES) was used to explore the temperature dependence of the Ce-4f spectral responses for surface and bulk in the antiferromagnetic Kondo lattice CeRh2Si2. Spectra were taken from Ce- and Si-terminated surfaces in a wide temperature range, and reveal characteristic 4f patterns for weakly (surface) and strongly (bulk) hybridized Ce, respect
We have investigated the transport of spin polarization through a classically chaotic semiconductor loop with a strong Rashba spin-orbit interaction. We found that if the escape time of a particle is long enough, the configuration averaged spin conductance oscillates strongly with the geometric spin phase. We predict a sizable rotation of spin polarization along its flowing path across the loop fr
1 oktober 2025 12:15 till 12:45 | Föreläsning Despite repeated affirmations of support for enlargement, the European Union struggles to sustain momentum in integrating new member states. This open talk explores the reasons behind the stagnation of the enlargement process, introducing the "Double Disappointment" model – a framework that traces how trust and commitment erode across multiple analytic
https://www.lu.se/evenemang/why-enlargement-fails-spiral-double-disappointment-eu-enlargement-policy - 2026-09-06
Recently, the industry and the academy started to discuss the development of the fourth generation DSL systems. For example, within this context, ITU started working in G. fast DSL standard. A trend in this new generation is to increase the end-user bit rates by extending the frequency rage of transmission signals and reducing the copper loop length. For the frequency range being considered for us
Advances in next-generation RNA-sequencing have revealed the complexity of transcriptomes by allowing both coding and noncoding (nc) RNAs to be analyzed. However, limited data exist regarding the whole transcriptional landscape of chronic lymphocytic leukemia (CLL). In this pilot-study, we evaluated RNA-sequencing in CLL by comparing two subsets which carry almost identical or `` stereotyped'' B-c
A search for first generation scalar and vector leptoquarks produced in ep collisions is performed by the H1 experiment at HERA. The full H1 data sample is used in the analysis, corresponding to an integrated luminosity of 446 pb(-1). No evidence for the production of leptoquarks is observed in final states with a large transverse momentum electron or with large missing transverse momentum, and co
Spectrum clustering is a powerful strategy to minimize redundant mass spectra by grouping them based on similarity, with the aim of forming groups of mass spectra from the same repeatedly measured analytes. Each such group of near-identical spectra can be represented by its so-called consensus spectrum for downstream processing. Although several algorithms for spectrum clustering have been adequat
The pace at which the world's ecosystems and biodiversity of, e.g., pollinators decline is currently at a rate where it is challenging to document. In recent years, our group has made an effort to bridge the disciplines of laser remote sensing and biophotonics, and we have developed lidar methods for inventorying the biosphere. Here, we present an effective method for extracting fauna observations
Minimizing insecticide use, preventing vector diseases and facilitating biodiversity assessments are suitable applications of recent advances in photonic insect surveillance and entomological lidar. The tools also comprise a new window into fundamental aspect of the fascinating life and ecology of insects and their predators in situ. At the same time, it is evident that lidars are subject to finit
The description of ultrafast nonadiabatic chemical dynamics during molecular photo-transformations remains challenging because electronic and nuclear configurations impact each other and cannot be treated independently. Here we gain experimental insights, beyond the Born-Oppenheimer approximation, into the light-induced spin-state trapping dynamics of the prototypical [Fe(bpy) 3 ] 2+ compound by t
Lunds universitet samverkar och samarbetar med toppuniversitet världen över genom internationella nätverk, samarbetsprogram och plattformar. Globalt dynamiskt engagemang (GDE) är Lunds universitets arbetssätt för att stärka och vidareutveckla vårt internationella genomslag inom forskning och utbildning, samt när det gäller nätverk och innovation. I detta arbete är demokrati, mänskliga rättigheter
https://www.lu.se/om-universitetet/globalt-engagemang-och-internationella-samarbeten/samarbeten-i-asien - 2026-09-05
