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PRODID:-//GRK 2905 - Ultrafast Nanoscopy - ECPv6.18.2//NONSGML v1.0//EN
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X-WR-CALNAME:GRK 2905 - Ultrafast Nanoscopy
X-ORIGINAL-URL:https://grk2905.de
X-WR-CALDESC:Events for GRK 2905 - Ultrafast Nanoscopy
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260424T140000
DTEND;TZID=Europe/Berlin:20260424T150000
DTSTAMP:20260608T150113Z
CREATED:20260313T095201Z
LAST-MODIFIED:20260608T150113Z
UID:1999-1777039200-1777042800@grk2905.de
SUMMARY:RTG Colloquium: Zhiyang Zeng
DESCRIPTION:Dynamical control of structural order\n\n\n\nCondensed Matter Dynamics DepartmentMPI for the Structure and Dynamics of Matter\, Hamburg \n\n\n\nCoherent excitation of lattice vibrations has emerged as a powerful approach to dynamicallycontrol functional material properties. In this talk\, I will present our recent work on using nonlinearphononics—a mechanism that enables the selective displacement of specific lattice vibrations—tomanipulate structural functionalities with light [1\,2]. In particular\, I will discuss how this approachenables the ultrafast control of chirality [3] and ferroaxial order [4]\, offering new pathways to tailorsymmetry and drive phase transitions in solids on demand. \n\n\n\n \n\n\n\n[1] Först\, et al. Nature Physics 7 (2011): 854-856.[2] Disa\, et al. Nature Physics 17 (2021): 611-618.[3] Zeng\, et al. Science 387.6732 (2025): 431-436.[4] Zeng\, et al. Science 390.6769 (2025): 195-198. \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/grk-colloquium-zhiyang-zeng/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/03/zeng-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260521T130000
DTEND;TZID=Europe/Berlin:20260521T140000
DTSTAMP:20260513T074122Z
CREATED:20260513T074122Z
LAST-MODIFIED:20260513T074122Z
UID:2146-1779368400-1779372000@grk2905.de
SUMMARY:RTG Seminar: Yiqi Fang
DESCRIPTION:Shaping electron dynamics with structured light\n\n\n\nFAU Erlangen\, Institute of Laser Physics \n\n\n\n \n\n\n\nLaser-excited electron motions allow the investigation of fundamental physical phenomena with unprecedented resolution in time\, space and energy. Structured light offers new opportunities to tailor and control the optical response of materials\, far beyond the ability of conventional linearly or circularly polarized light. In this talk\, I will show the physics and application of structured light when it interacts with bound electrons in atoms as well as when it interacts with electron pulses in free space. \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN.0.35
URL:https://grk2905.de/event/rtg-seminar-yiqi-fang/
CATEGORIES:Seminar
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/05/Fang.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260522T140000
DTEND;TZID=Europe/Berlin:20260522T153000
DTSTAMP:20260608T150053Z
CREATED:20260430T162325Z
LAST-MODIFIED:20260608T150053Z
UID:2116-1779458400-1779463800@grk2905.de
SUMMARY:RTG Colloquium: Thomas Taubner
DESCRIPTION:Infrared near-field spectroscopy of few-layer graphene\n\n\n\nRWTH Aachen\, Germany \n\n\n\n \n\n\n\nInfrared scattering-type scanning-near-field optical microscopy (s-SNOM) enables the imaging of nanostructures with sub-diffraction resolution by elastic light scattering at a sharp tip. s-SNOM also boosted the field of 2D materials by enabling real-space imaging of plasmon- or phonon polaritons\, e.g.\, in graphene and hexagonal Boron Nitride (hBN)\, respectively. Polariton imaging with s-SNOM has allowed for indirectly mapping (grain) boundaries and (stacking) defects in fewlayer Graphene (FLG) via polariton reflection.Here\, I will present how spectroscopic IR s-SNOM is able to determine the local stacking order at nanoscale resolution not only of bare few-layer graphene\, but also when it is encapsulated below hBN layers. I will explain the contrast mechanisms\, mainly based on the characteristic and stacking-dependent interband transitions of FLG\, for bilayer graphene\, trilayer (TLG) graphene and tetralayer graphene (4LG). We retrieve and reconstruct these characteristic complex optical conductivity resonances from the amplitude and phase of the scattered light\, which e.g. allow for the unambiguous assignment of previously undetected ABCB domains in 4LG.Coupling the (stacking-dependent) FLG with phonon polaritons in a hBN TLG heterostructure also leads to coupled polaritons (hyperbolic phonon plasmon polaritons). We explore how they allow for super-resolution imaging of subdiffraction-sized defects in graphene through the hBN cover layer via the so-called hyperlensing effect. Furthermore\, we show how resonators for polaritons in 2D materials like hBN can be easily fabricated and optically reconfigured using Phase-Change Materials. \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/rtg-colloquium-thomas-taubner/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/04/Taubner.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260611T140000
DTEND;TZID=Europe/Berlin:20260611T160000
DTSTAMP:20260603T083600Z
CREATED:20260519T125624Z
LAST-MODIFIED:20260603T083600Z
UID:2161-1781186400-1781193600@grk2905.de
SUMMARY:RTG Colloquium: Gabriele Kaminski Schierle & Clemens Kaminski
DESCRIPTION:Biological imaging at the nanoscale\n\n\n\nClemens F. Kaminski\, University of CambridgeThe advent of optical super‑resolution imaging together with the ability to label specific cellular components with fluorescent markers has ushered in a revolution in our mechanistic understanding of biological processes. In this presentation\, I will provide an overview of current methods used to obtain nanoscale insights into the molecular machinery that supports life at the subcellular level. I will present approaches for tracking protein interactions\, using single‑molecule localisation microscopy as well as indirect techniques such as fluorescence lifetime imaging microscopy. I will then discuss methods based on structured illumination microscopy\, which enable dynamic interrogation of cellular machinery including lysosomes and the endoplasmic reticulum. Finally\, I will offer an outlook on emerging trends and how machine learning is transforming our field. \n\n\n\n \n\n\n\nCoffee break & discussion \n\n\n\n \n\n\n\nBeyond Alzheimer’s: conserved lysosomal dyshomeostasis as a driver of synaptic dysfunction across neurodegenerative proteopathies\n\n\n\n \n\n\n\nGabriele S. Kaminski Schierle\, University of Cambridge \n\n\n\nWhile scientists know that in Alzheimer’s disease\, lysosomes (the cell’s “trash cans”) clump together and lose their acidity\, they didn’t know if this happens in all neurodegenerative diseases.This study found that this “trash can” breakdown actually happens across many diseases\, including ALS\, Parkinson’s\, and Frontotemporal Dementia. Instead of being spread out normally to clean the whole cell\, the lysosomes clump tightly around the cell’s centre.By tracking cell electricity and layout\, the researchers discovered that this clumping severely damages brain signalling. Because the lysosomes are stuck in the centre\, they can’t reach the distant outer branches of the brain cells to clear out old\, broken proteins. This causes waste to build up and shorts out communication between neurons.Ultimately\, this suggests that fixing where lysosomes sit and restoring their acidity could act as a single\, powerful treatment for multiple brain diseases. \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/rtg-colloquium-gabriele-kaminski-schierle-clemens-kaminski/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/png:https://grk2905.de/wp-content/uploads/2026/05/Kaminskis.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260618T140000
DTEND;TZID=Europe/Berlin:20260618T150000
DTSTAMP:20261013T113830Z
CREATED:20260617T115938Z
LAST-MODIFIED:20261013T113830Z
UID:2207-1781791200-1781794800@grk2905.de
SUMMARY:RTG Seminar:Prasana Kumar Sahoo
DESCRIPTION:Engineering excitons in 2D lateral heterostructures for reconfigurable devices\n\n\n\nQuantum Materials & Device Research Lab (QMDrL)\, Materials Science Centre\,Indian Institute of Technology Kharagpur\, India \n\n\n\n \n\n\n\nTwo-dimensional semiconductor lateral hetero-structures (LHS) provide atomically sharp 1D interfaces for controlling charge carriers\, excitons\, and light. I will present scalable growth of seamless TMD LHS\, exhibiting tunable PN junctions\, electroluminescence\, excitonic transistor operation\, and reversible photoconductivity. These materials offer a versatile platform for quantum photonics\, exciton-based devices\, and low-dimensional quantum systems. \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN 0.34
URL:https://grk2905.de/event/rtg-seminar-prasana-kumar-sahoo/
CATEGORIES:Seminar
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/06/Sahoo.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260619T140000
DTEND;TZID=Europe/Berlin:20260619T150000
DTSTAMP:20261013T113809Z
CREATED:20260326T153746Z
LAST-MODIFIED:20261013T113809Z
UID:2023-1781877600-1781881200@grk2905.de
SUMMARY:RTG Colloquium:Alice Kunin
DESCRIPTION:High-performance time-resolved photoemission experiments of quantum materials\n\n\n\nPrinceton University \n\n\n\n \n\n\n\nI will discuss our work coupling MHz\, kW light sources with momentum microscopy to enable efficient time- and angle-resolved photoemission (tr-ARPES) studies. I will first examine the dynamics of intra- and interlayer excitons in twisted van der Waals heterobilayers. I will then discuss our current work on a new spectrometer to probe ultrafast surface photochemistry in situ with the extension of tr-ARPES beyond ultrahigh vacuum towards more realistic chemical environments. \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/grk-colloquium-alice-kunin/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/png:https://grk2905.de/wp-content/uploads/2026/03/people_alice-768x768-1.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260703T140000
DTEND;TZID=Europe/Berlin:20260703T150000
DTSTAMP:20261013T113748Z
CREATED:20260326T153757Z
LAST-MODIFIED:20261013T113748Z
UID:2025-1783087200-1783090800@grk2905.de
SUMMARY:RTG Colloquium:Bruno Schuler
DESCRIPTION:Probing atomic defects in 2D semiconductors with light-coupled STM\n\n\n\nEmpa\, Switzerland \n\n\n\n \n\n\n\nTwo-dimensional (2D) semiconductors provide an exciting platform to engineer atomic quantum systems in a robust\, yet tunable solid-state system. This talk explores the intriguing physics of single point defects in transition metal dichalcogenide (TMD) monolayers\, investigated through atomically resolved scanning probe microscopy. \n\n\n\nWe demonstrate electrically induced exciton emission from both pristine MoS₂ and individual charged defects using scanning tunnelling microscope luminescence (STML) on ultrathin hBN decoupling layers [1]. Furthermore\, I will present our recent advances in time-resolved THz-STM using QEV maps to achieve state-selective ultrafast charge injection [2]. This approach enables the investigation of charge [3] and exciton dynamics [4] with atomic spatial\, millielectronvolt energy\, and picosecond temporal resolution. \n\n\n\nBy combining the structural and electronic properties accessible by conventional scanning probe microscopy with the optical fingerprint from STML and the excited-state dynamics revealed through pump-probe THz-STM\, we gain a comprehensive microscopic understanding of localized quantum states in low-dimensional materials. \n\n\n\n \n\n\n\n[1] L. Huberich et al. arxiv: 2510.15676 (2025)[2] L. Bobzien et al. APL Mater. 12\, 051110 (2024)[3] J. Allerbeck et al. Nat. Commun. 16\, 10806 (2025)[4] L. Bobzien et al. (in preparation) \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/grk-colloquium-bruno-schuler/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/03/citations.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260716T090000
DTEND;TZID=Europe/Berlin:20260716T170000
DTSTAMP:20260708T083925Z
CREATED:20260608T151832Z
LAST-MODIFIED:20260708T083925Z
UID:2193-1784192400-1784221200@grk2905.de
SUMMARY:Workshop: Presentation skills for scientists
DESCRIPTION:One-day in person workshop with Guido Molina (professional actor & internationally active director) for RTG 2905 students. \n\n\n\n\n\n\n\n\n\n\n\nTheater training for effective communication\n\n\n\nGuido Molina\, impuls plus \n\n\n\n \n\n\n\nWith a career as an actor in theater\, film\, and television\, as well as experience teaching and directing in international settings\, Guido Molina draws on his wealth of knowledge and experience to offer excellent training in communication and presentation skills.  \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/workshop-drama-and-the-scientist/
CATEGORIES:Workshop
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/06/Guido_roter_HG-e1701945235549-768x768-1.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20260928T100000
DTEND;TZID=Europe/Berlin:20260930T100000
DTSTAMP:20260904T083557Z
CREATED:20260904T083556Z
LAST-MODIFIED:20260904T083557Z
UID:2270-1790589600-1790762400@grk2905.de
SUMMARY:Special lecture series: Ultrafast linear and nonlinear X-ray spectroscopy
DESCRIPTION:September 28 – September 30 \n\n\n\n10:00 – 11:00 \n\n\n\n\n\n\n\n\n\nMichael W. Zuerch\n\n\n\nUniversity of California\, Berkeley \n\n\n\n \n\n\n\nPart I: Introduction and fundamentals \n\n\n\nIn this first lecture\, I will explore the advantages of elemental and symmetry-selective probes for studying chemically relevant interfaces and symmetry properties in materials\, contrasting these approaches with conventional methods commonly used in experimental condensed matter physics. Additionally\, I will provide an overview of the fundamentals of X-ray spectroscopy and free-electron lasers that enabled the recent demonstrations of nonlinear spectroscopy in the X-ray regime. \n\n\n\n \n\n\n\nPart II: Linking nonlinear optics between visible and X-ray regime \n\n\n\nIn this lecture\, we will focus on the fundamentals of nonlinear optics and explore how to bridge our understanding across photon energy scales\, from the visible to the X-ray regime. We will specifically examine the foundational differences between the visible/infrared regimes\, which provide surface sensitivity\, the XUV/soft X-ray regime\, which enables elemental specificity at interfaces\, and the hard X-ray regime\, which is sensitive to bulk symmetry. \n\n\n\n \n\n\n\nPart III: Applications in materials and liquid interfaces \n\n\n\nIn this lecture\, I will present recent examples demonstrating how the combination of linear and nonlinear X-ray spectroscopy can reveal properties of matter and interfaces that are otherwise inaccessible. These examples include complex quantum phases of matter and the surface of water. \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/special-lecture-series-ultrafast-linear-and-nonlinear-x-ray-spectroscopy/
CATEGORIES:Special lecture series
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/09/3-scaled.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261022T083000
DTEND;TZID=Europe/Berlin:20261022T170000
DTSTAMP:20260925T084621Z
CREATED:20260925T084620Z
LAST-MODIFIED:20260925T084621Z
UID:2306-1792657800-1792688400@grk2905.de
SUMMARY:Career.Visibility.Impact.
DESCRIPTION:Workshop for women in Science\n\n\n\n \n\n\n\nJoint Workshop Series with SFB 1277 \n\n\n\n(deutschsprachiges Angebot) \n\n\n\n \n\n\n\nOkt. 22: Sichtbar mit Substanz \n\n\n\nOkt. 23: LinkedIn als Karriere- und Sichtbarkeitsplattform (Teil 1) \n\n\n\nDez. 03: Klar.Souverän.Durchsetzungsstark. \n\n\n\nDez. 04: LinkedIn als Karriere- und Sichtbarkeitsplattform (Teil 2) \n\n\n\nDez. 14: Gemeinsam stärker \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nFor more information and registration\, please visit www.sfb1277-regensburg.de
URL:https://grk2905.de/event/career-visibility-impact/
CATEGORIES:Workshop
ATTACH;FMTTYPE=image/png:https://grk2905.de/wp-content/uploads/2026/09/canvas.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261023T140000
DTEND;TZID=Europe/Berlin:20261023T150000
DTSTAMP:20261013T113643Z
CREATED:20260907T120930Z
LAST-MODIFIED:20261013T113643Z
UID:2287-1792764000-1792767600@grk2905.de
SUMMARY:RTG Colloquium:Martin Weik
DESCRIPTION:Integrated time-resolved structural biology approaches to visualize photoreceptor proteins at work\n\n\n\nInstitut de Biologie Structurale\, Grenoble \n\n\n\n \n\n\n\nPhotoreceptor proteins utilise the absorption of light to elicit a biological response in a variety of processes\, including vision\, circadian rhythms and plant development. In order to visualise the structural dynamics of photoreceptor proteins in action\, a particularly powerful approach is to integrate results from various time-resolved structural biology approaches: time-resolved serial femtosecond crystallography\, time-resolved X-ray solution scattering and time-resolved single particle cryo-EM. The merits of a synergistic implementation of these approaches will be exemplified by a recent study that investigates a vitamin B12-dependent photo-receptor. \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/rtg-colloquium-martin-weik/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/09/Weik.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261120T140000
DTEND;TZID=Europe/Berlin:20261120T150000
DTSTAMP:20261013T113712Z
CREATED:20260907T121848Z
LAST-MODIFIED:20261013T113712Z
UID:2292-1795183200-1795186800@grk2905.de
SUMMARY:RTG Colloquium:Oleg Mitrofanov
DESCRIPTION:University College London\, UK \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/rtg-colloquium-oleg-mitrofanov/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/09/Mitrofanov.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20261211T140000
DTEND;TZID=Europe/Berlin:20261211T150000
DTSTAMP:20261013T113726Z
CREATED:20260907T122332Z
LAST-MODIFIED:20261013T113726Z
UID:2298-1796997600-1797001200@grk2905.de
SUMMARY:RTG Colloquium:Gloria Platero
DESCRIPTION:ICMM-CISC\, Madrid \n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\nVenue: RUN Auditorium
URL:https://grk2905.de/event/rtg-colloquium-gloria-platero/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2026/09/gloriaPlatero.jpg
END:VEVENT
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