Lattice Dynamics
Lattice Dynamics
Research Group Alexander Paarmann
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!

Jan 2024
Our new review article with Andrea Alú‘s and Pablo Alonso-Gonzalez‘s teams made the cover of the January 2024 of Nature Review Materials!
Richarda thesis submitted
Dec 2023
Yesterday, just in time before the holiday, Richarda submitted her PhD thesis. Woohoo!

Also, we have been quiet but productive with several new papers: First near-field imaging of shear polaritons in gallium oxide together with Josh‘s, Andrea‘s, and Lukas[more...]
Polaritons go leaky
May 2023
Giulia‘s and Sören‘s paper on Leaky Polaritons just got published, congratulations! This was a very nice collaborative work together with Peining Li and Andrea Alú, thanks so much!
Niclas joined the group
May 2023
Niclas Sven Müller joined the group as a new postdoc. He is an expert in strong coupling phenomena, and we are looking forward to working with him very much. Welcome!
New Visitor - Gonzalo
Apr 2023
Gonzalo Alvarez-Perez, a senior Ph.D. student with Pablo Alonso-Gonzalez at the University of Oviedo, Spain, just joined the group as for a 3-months visit. Love having you here!
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