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Calendar of Physics Talks Vienna
| Localized Surface Plasmon Controlled Chemistry at and beyond the Nanoscale |
| Speaker: | Nan Jiang (University of Illinois Chicago, Dept. of Chemistry & Dept. of Physics Chicago, IL/USA) |
| Abstract: | Our research focuses on materials at the single-molecule and atomic scale, investigating how local environments govern the physical and chemical properties of functional materials, nanostructures, and surface-supported molecular systems with Ångström-scale resolution. Tip-Enhanced Raman Spectroscopy (TERS) uniquely integrates the atomic spatial resolution of Scanning Tunneling Microscopy (STM) with the chemical sensitivity of Raman spectroscopy. By utilizing a plasmonically active scanning probe, the Raman signal at the tip-sample junction is greatly enhanced, enabling single-molecule probing. When combined with ultrahigh vacuum conditions, this approach allows atomistic control of localized surface plasmons with exceptional stability and precision. Using TERS, we have achieved: (1) single-molecule chemical identification;1 (2) quantum-level characterization of adsorbate-substrate intera |
| Date: | Wed, 22.04.2026 |
| Time: | 11:00 |
| Location: | TU Wien, Institut für Angewandte Physik, E134 1040 Wien, Wiedner Hauptstraße 8-10 Yellow Tower „B“, 1st floor, Fachgruppenraum Physik, DB01E15 Zoom-link: https://tuwien.zoom.us/j/68788957002?pwd=0SG2 |
| Contact: | Dr. Jan Balajka |
| Cosmology and fundamental physics from compact binary coalescences detected by the LIGO, Virgo and KAGRA collaboration |
| Speaker: | Dr Simone Mastrogiovanni (INFN Rome) |
| Abstract: | The Universe expansion is one of the most puzzling open problems in modern cosmology. For over 20 years, measurements of the Universe expansion rate from close-by and far sources are in tension hinting for the presence of new physics at cosmological scales. Our struggle to corroborate the presence of new physics is due to the difficulty of observing cosmological sources for which the distance is known without the need of a cosmological ladder. However, a new player entered the cosmological match in 2015: Gravitational Waves (GWs) from compact binary coalescences (CBCs). CBCs are Standard Sirens, they are the only known cosmological source for which it is possible to directly measure the luminosity distance from their GW emission. Unfortunately, the GW do not provide the other ingredient to measure the Universe expansion: the redshift. For details see https://indico.global/event/17133/ |
| Date: | Thu, 23.04.2026 |
| Time: | 10:00 |
| Duration: | 60 min |
| Location: | Marietta Blau Institute for Particle Physics, Dominikanerbastei 16 [PSK], 1010 Vienna, Besprechungsraum 3A.1/2 |
| Contact: | Ulyana Dupletsa, Claude Amsler |
| Speaker: | Aephraim Steinberg (University of Toronto) |
| Abstract: | folgt |
| Date: | Fri, 24.04.2026 |
| Time: | 10:00 |
| Duration: | 45 min |
| Location: | Helmut Rauch Hörsaal ATI |
| Contact: | VCQ Nadine Hilmar |
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