Lattice Dynamics
Research Group Alexander Paarmann
Lattice Dynamics
Research Group Alexander Paarmann
Lattice Dynamics
Research Group Alexander Paarmann


Welcome to the Lattice Dynamics group website!

Our group is interested in optical phonons in polar dielectric crystals and their heterostructures. We use various linear and nonlinear mid-infrared to THz spectroscopy techniques, employing the Infrared Free Electron Laser (IR-FEL) at the FHI as an intense and tunable light source.

Using this unique laser, we study various problems ranging from infrared nanophotonics to phase transitions in complex oxides. Check out our research page and our recent publications for more information!

Dr. Christopher Winta
Jan 2021
Three makes a gang. Just before chistmas, also Chris successfully defended his PhD thesis. This closes the round of the first generation of students. Congratulations, Chris. We’ll miss you dearly.
New projects available
Dec 2020
We have two new projects (1 PhD and 1 Masters) availabe. Check out our Open Positions or contact Alex to find out more.

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Dr. Nikolai Passler
Sep 2020
The next to follow: Nikolai! Today, also Nikolai defended his PhD thesis. Yay, Niko! We are glad to have you stick around with us for a bit longer …
Dr. Riko Kießling
Aug 2020
Riko today successfully defended his Ph.D. thesis. Congratulations Riko! Well done.
Alex goes YouTube
Jul 2020
Alex‘ talk about the groups research just appeared on YouTube. This seminar was part of Midi – Mid-Infrared Discussions – organized by Simone and Vincenco. Thanks, guys, this seminar series was a great idea.