Ultra-thin superlattices from gold nanoparticles for nanophotonics

The group of Prof. Dr. Matthias Karg at the Institute of Physical Chemistry at Heinrich Heine University Duesseldorf (HHU) in Germany is creating ultra-thin, highly ordered layers of spherical hydrogel beads that encapsulate gold or silver particles. These structures are of interest for applications in optoelectronics -- light-based information and communication technology -- and nanophotonics. The researchers have recently published findings on a significant step in the direction of 'plasmonic nanolasers' in the journal ACS Applied Materials & Interfaces.