109 citations · 162 across the 4 of their papers we have counts for
4 papers
Second Harmonic Generation from Grating-Coupled Hybrid Plasmon-Phonon Polaritons
Marcel Kohlmann, Christian Denker, Nikolai C. Passler +4
Polaritons can provide strong optical field enhancement allowing to boost light-matter interaction. Here, we experimentally observe enhancement of mid-infrared second-harmonic gene…
Infrared super-resolution wide-field microscopy using sum-frequency generation
Richarda Niemann, Sören Wasserroth, Guanyu Lu +6
Super-resolution microscopy in the visible is an established powerful tool in several disciplines. In the infrared (IR) spectral range, however, no comparable schemes have been dem…
Effects of Crystal Anisotropy on Optical Phonon Resonances in the Mid-Infrared Second Harmonic Response of SiC
Alexander Paarmann, Ilya Razdolski, Sandy Gewinner +2
We study the effects of crystal anisotropy on optical phonon resonances in the second harmonic generation (SHG) from silicon carbide (SiC) in its Reststrahl region. By comparing ex…
Femtosecond electrons probing currents and atomic structure in nanomaterials
Melanie Müller, Alexander Paarmann, Ralph Ernstorfer
The investigation of ultrafast electronic and structural dynamics in low-dimensional systems like nanowires and two-dimensional materials requires femtosecond probes providing high…