Seminars

Emmy Noether Project: Enantiosensitive Photoelectron Spectroscopy of Chiral Aqueous Solutions

A clear understanding of molecular chirality in aqueous solution is directly relevant for chemical and life sciences. [more]

Spin Dynamics and Manipulation of THz Generation

THz spintronics is an emerging field of research that combines ultrafast optics with spintronics, leveraging the speed of lasers to study magnetic dynamics. The use of THz radiation presents an energy-efficient alternative to optical pulses as it directly targets the excitation of magnons. Conversely, magnetic processes on a picosecond timescale result in the emission of THz radiation. This work explores the topic of THz spintronics from both directions. [more]

Ultrafast Electron Dynamics and Attosecond Control in Scanning Tunneling Microscopy

  • PC Special Seminar
  • Date: Jul 15, 2025
  • Time: 11:00 AM (Local Time Germany)
  • Speaker: Boyang Ma
  • Technion-Israel Institute of Technology
  • Location: Building G
  • Room: 2.06
  • Host: Melanie Müller
  • Topic: Discussion and debate formats, lectures
With the rapid advancement of attosecond science, the intrinsic timescale of electronic dynamics in atoms, molecules and solids can now be accessed. Integrating attosecond techniques with conventional scanning tunneling microscopy (STM) has the potential to enable simultaneous ångström-attosecond resolution. Here, we present our theoretical and experimental studies on the physical dynamics of attosecond STM. [more]

Correlated Motions of Electrons, Spins, and Dipoles in 2D vdW Materials

Correlation plays a central role in emergent phenomena. Examples include, among others, quantum ground states and collective excitations. Here, I will discuss what we can learn from time-domain views of correlation in two dimensional (2D) vdW materials. In the 2D vdW magnetic semiconductor, CrSBr, excitonic transition is found to strongly couple to magnetic order [1] and this allows the easy detection of low energy (GHz-THz) magnons by visible-NIR light [2]. [more]

Reverse Water Gas Shift Activity of FexNi Catalysts on Metal Oxide-Overlayered γ-Al2O3 Supports

Power-to-Liquid (PtL) processes, which produce liquid fuels from captured CO₂ and green H₂ via methanol synthesis or Fischer-Tropsch synthesis, offer a promising route to sustainable carbon-based energy carriers for sectors that cannot be readily electrified. [more]

The A+ Upgrade to Advanced LIGO and Applications of Hydroxide Catalysis Bonding

Advanced LIGO (the Laser Interferometer Gravitational-Wave Observatory) is designed to measure the quadrupolar strain of space itself arising from passing gravitational waves and in 2015 made the first observation of a binary black hole merger [Abbot et al, Phys Rev A, 116, 061102 (2016)]. [more]

Shedding Infrared Light on Molecules: From Molecular Polaritons to Hyperspectral Imaging

Mid-Infrared (MIR) light can interact with molecules by selectively exciting molecular vibrational modes. On one hand, in combination with photonic structures, MIR can target specific vibrational states of molecular to influence chemical reactions; on the other hand, IR spectroscopy has long been used as a molecular sensing tool. In this talk, I will discuss recent advancement in my lab, focusing on these two key topics. In the first topic, I will explain how photonic environments can modify molecular dynamics through strong light-matter coupling. This strong coupling leads to the molecular vibrational polaritons – a hybrid quasiparticle between light and matter. Using two-dimensional infrared (2D IR) spectroscopy, we have demonstrated that strong coupling to photonic environments can efficiently promote energy transfer within or between molecules, subsequently slowing down competing reaction pathways. This research provide insights into designing photonic structures to modify chemical landscapes and influence reaction pathways. In the second topic, I will present the latest development in fast-scanning vibrational sum frequency generation (VSFG) microscopy, tailored to differentiate collagen tissues in healthy and tumorous conditions. We revealed distinct spectral signatures between healthy and tumorous tissues, which arise from the coherent nature of VSFG signals – akin of a microscopic Young’s double slit experiment. VSFG’s unique power to resolve varying alignments of collagen fibrils empowers it as a distinctive label-free technique for tumor identification in the future. [more]

ISC Seminar: Prof. Vinayak P. Dravid

  • ISC Department Seminar
  • Date: Aug 29, 2025
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Prof. Vinayak P. Dravid
  • Abraham Harris Chaired Professor I Department of Materials Science & Engineering I McCormick School of Engineering and Applied Science I Founding Director, NUANCE Center & SHyNE Resource I Founder and Co-Director; Global McCormick I Northwestern University, AB Wing A190 Technological Institute, 2145 Sheridan Road, Evanston, IL 60208
  • Location: Building P
  • Room: Seminar Room
  • Host: Interface Science Department
  • Topic: Discussion and debate formats, lectures
  • Contact: nikolaus@fhi-berlin.mpg.de
(Lecture Title to be announced) [more]

TH-Seminar: Prof. Dr. Vasiliki Tileli

German-New Zealand Green Hydrogen / He Honoka Hauwai & Catalysts for H2 production and CO2 reduction

The increasingly severe impacts of climate change demand us to: (a) reduce energy use (b) decarbonise existing high emissions industrial processes and (c) rapidly replace of our present range of carbon-emitting fossil fuels (coal, oil, natural gas) by a suite of carbon-zero and carbon-neutral fuels. [more]

TH-Seminar: Prof. Lars Borchardt

Go to Editor View