Lars Nähle

Multi-mW, few-cycle mid-infrared continuum spanning from 500 to 2250 cm−1

Intra-pulse difference-frequency generation of mid-infrared (27–20  μm) by random quasi-phase-matching

Multi‐wavelength quantum cascade laser arrays

Photodetection with Active Optical Antennas

Small-divergence semiconductor lasers by plasmonic collimation

Tapered quantum cascade lasers