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EVENTS

ACP is organizing an thrilling and inspiring program throughout the whole year, including international conferences and workshops, keynote lectures and research group seminars. Upcoming events are listed below. Allmost all events are open to the public, and you can reach them as follows:

  • The auditorium and the two seminar rooms of the Abbe Center of Photonics are located in the foyer area in the ground floor of the building, Campus Beutenberg, Albert-Einstein-Straße 6, 07745 Jena.
  • The meeting rooms 106, 207 and 306 are located in the upper floors of the Abbe Center of Photonics according to the first digit of their number. External guests should take the public staircase from the foyer area and ring the bell at the individual doors to the meeting areas or call the secretary's office from the phones at the building's entrances (dial 47561).
  • The Carl Zeiss seminar room of the Fraunhofer Institute Jena is located at Campus Beutenberg, Albert-Einstein-Straße 7, 07745 Jena.
  • The seminar room of the Institute of Applied Physics is located at the yellow part of the institute building in the first floor, Campus Beutenberg, Albert-Einstein-Straße 15, 07745 Jena.
To reserve either of these rooms, please find more details here. For further information, please contact Ms. Rebeca Freyberg (), +49 3641 947961).

As for the digital world, the ACP Event tool can generate an iCal-compatible calendar file, which can be imported into about every calendar program and will be automatically updated. To be always up to date concerning all ACP events, feel free to import the following link into your calendar program:http://www.acp.uni-jena.de/events.ical.

Lecture by Dr. Bernhard Urbaszek (CNRS, University of Toulouse)
"Atomically thin semiconductors for optolectronics and spintronics: progress and perspectives"

CRC NOA colloquium
18.09.2019 04:15pm
Zentrum für Angewandte Forschung (ZAF), Philosophenweg 7, 07743 Jena

Atomic monolayers of transition metal dichalcogenides (TMDs) such as MoS2 and WSe2 have remarkable properties for fundamental research and potential applications : They are semiconductors with a direct gap in the visible to near infrared region of the optical spectrum. The interaction of TMD monolayers with light is governed by excitons [1], electron-hole pairs bound by Coulomb attraction, with binding energies of several hundred meV and therefore still dominant at room temperature. Light-matter interaction is enhanced at specific exciton resonances with 20 % of the light absorbed per monolayer and modulation of several orders of magnitude of second harmonic generation efficiency, for example. Recent progress in fabrication allows approaching lifetime broadened optical transitions and in this regime TMD monolayers can in principle be tuned to 100 % reflectivity i.e. to be perfect mirrors. In addition, chiral optical selection rules allow for optical manipulation of the spin and valley index of electrons with polarized lasers, opening research opportunities in spintronics and valleytronics.
Here we review our current understanding of the optical and polarization properties of TMD monolayers and heterostructures and how they can be coupled to photonic structures or magnetic substrates using simple “Scotch tape” exfoliation techniques for assembly [2], to further explore their properties.

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