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X-WR-CALDESC:Events for Regensburg Center for Ultrafast Nanoscopy
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DTSTART;TZID=Europe/Berlin:20240705T103000
DTEND;TZID=Europe/Berlin:20240705T120000
DTSTAMP:20260519T150843Z
CREATED:20240606T124941Z
LAST-MODIFIED:20260519T150843Z
UID:2701-1720175400-1720180800@run-regensburg.de
SUMMARY:RTG Colloquium: Accurate theoretical methods for structural characterization of complex materials
DESCRIPTION:Spectroscopy is crucial for establishing structure-property relationships as it provides detailed information about the molecular composition and electronic structure of materials. This data is essential for correlating specific structural features with material properties\, thereby guiding the design and optimization of new materials. I will discuss our recent advances in accurately predicting core-level and vibrational spectra of complex materials. For core-level spectroscopy\, we developed highly accurate but computationally expensive methods based on Green’s function theory in the GW approximation. Calculations for amorphous materials\, which require computational models with several hundred atoms\, were enabled by devising new efficient algorithms and combining these methods with machine-learning approaches. In addition\, I will discuss computational approaches to vibrational spectroscopy that not only allow for the structural characterization of the final layered framework materials but also enable the monitoring of synthesis progress. \n\n\n\n\n\nDr. Dorothea Golze
URL:https://run-regensburg.de/event/grk-colloquium-by-dorothea-golze/
CATEGORIES:GRK Colloquium
ATTACH;FMTTYPE=image/webp:https://run-regensburg.de/wp-content/uploads/2024/06/dorothea2021.webp
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240628T141500
DTEND;TZID=Europe/Berlin:20240628T154500
DTSTAMP:20260519T150905Z
CREATED:20240606T124754Z
LAST-MODIFIED:20260519T150905Z
UID:2699-1719584100-1719589500@run-regensburg.de
SUMMARY:RTG Colloquium: Excitations in condensed matter: from theory to real materials II
DESCRIPTION:The second lecture on excitations in condensed matter will cover electronic excitations in semiconductors and dielectrics\, where the electron-hole interaction in the electronically excited state\, the exciton\, is key. We will explain how the electron-hole interaction arises from Hartree-Fock theory and discuss the limitations of time-dependent density functional theory and Hartree-Fock for the study of excitons. The lecture will then introduce the GW+Bethe-Salpeter method\, the standard for studying excitons in condensed matter with an atomistic description. \n\n\n\n\n\nJan Wilhelm
URL:https://run-regensburg.de/event/grk-colloquium-excitations-in-condensed-matter-from-theory-to-real-materials-ii/
CATEGORIES:GRK Colloquium
ATTACH;FMTTYPE=image/jpeg:https://run-regensburg.de/wp-content/uploads/Team/JanWilhelm.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240621T141500
DTEND;TZID=Europe/Berlin:20240621T154500
DTSTAMP:20260519T150928Z
CREATED:20240606T124651Z
LAST-MODIFIED:20260519T150928Z
UID:2697-1718979300-1718984700@run-regensburg.de
SUMMARY:RTG Colloquium: Excitations in condensed matter: from theory to real materials I
DESCRIPTION:This lecture series on excitations in condensed matter will explore electronic excitations\, linking theoretical concepts and experimental observations. The first lecture will cover ground-state and excited-state solutions of the many-body Schrödinger equation for electrons and nuclei. We will illustrate how these solutions are linked to motion on the nanoscale with examples from ultrafast nanoscience and biochemistry. We will also discuss time-dependent density functional theory\, highlighting its success in studying plasmons\, the electronic excitations in metals. \n\n\n\n\n\nJan Wilhelm
URL:https://run-regensburg.de/event/grk-colloquium-excitations-in-condensed-matter-from-theory-to-real-materials-i/
CATEGORIES:GRK Colloquium
ATTACH;FMTTYPE=image/jpeg:https://run-regensburg.de/wp-content/uploads/Team/JanWilhelm.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240614T141500
DTEND;TZID=Europe/Berlin:20240614T154500
DTSTAMP:20260519T150959Z
CREATED:20240606T124533Z
LAST-MODIFIED:20260519T150959Z
UID:2694-1718374500-1718379900@run-regensburg.de
SUMMARY:RTG Colloquium: Ultrafast nanoscopy experiments
DESCRIPTION:Markus Huber \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nAdvancing optical microscopy to increasingly shorter length- and timescales has been a key process to visualize the connection between nanoscopic elementary dynamics and macroscopic functionalities of matter. \n\n\n\nIn this colloquium\, I will give a basic introduction to the broad field of ultrafast nanoscopy. I will show different approaches of how ultrafast temporal resolution can be combined with nanoscale spatial resolution to see novel dynamics in a variety of materials. The focus will hereby be on coupling of light to sharp metallic tips\, the fundamental approach for techniques like ultrafast near-field microscopy\, lightwave scanning-tunneling microscopy and near-field optical tunneling emission microscopy.
URL:https://run-regensburg.de/event/grk-colloquium-ultrafast-nanoscopy-experiments/
CATEGORIES:GRK Colloquium
ATTACH;FMTTYPE=image/jpeg:https://run-regensburg.de/wp-content/uploads/2024/06/Huber_Markus.jpg
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