Stan ter Huurne has given a keynote presentation at the IRMMW conference in Paris. Stan presented the work that he done together with Niels van Hoof on modes with infinite lifetime (bound states in the continuum) at THz frequencies. Niels also presented the work on THz near-field microscopy.
We have demonstrated a four-fold enhancement of the delayed fluorescence in tetracene crystals by strongly coupling singlet excitons to photons in an optical cavity formed by a nanoparticle array. The enhanced luminescence is attributed to triplet excitons that are harvested by the lower polariton band emerging from the strong coupling. These type of effects in…
Spectral and temporal evidence of robust photonic bound states in the continuum on terahertz metasurfaces
In collaboration with the group of Sanchez Gil (CSIC-Spain), we have demonstrated that a simple array of gold dimers can support modes with infinite life-times. We have investigated these, so-called, Bound States in the Continuum using THz time-domain spectroscopy. Read more in our published Optica.
Terahertz Time-Domain Spectroscopy and Near-Field Microscopy of Transparent Silver Nanowire Networks
In collaboration with our former colleages of the Dutch Institute for Fundamental Energy Research, we have measured the sheet conductance of transparent electrodes formed by networks of Ag nanowires. The measurements have been done in a contact-free manner and spatially resolved, using our newly developed THz near-field microscope. Read more in our published Advanced Optical…
Strong light–matter coupling and exciton-polariton condensation in lattices of plasmonic nanoparticles
Read our review on strong light-matter coupling and condensation of exciton-polaritons in arrays of nanoparticles published as an invited review in the Journal of the Optical Society of America B.
Our numerical investigation of lattice resonances in periodic arrays of Si Mie scatterers has been published as an invited manuscript in the special issue Semiconductor Nanoresonators and Metasurfaces of the Journal of Applied Physics. Read more here.
In collaboration with the groups of Jose Antonio Sanchez Gil and Francisco Garcia Vidal from Madrid (Spain), we have investigated theoretically the coupling of organic molecules and guided modes in semiconductor nanowires. The coupling strength depends on the fraction of energy spread outside the nanowire, rather than on the mode field localization. Read more here.
Our publication on how to preserve the quantum efficiency of monoatomic layers of transition metal dichalcogenides (TMDs) during transfer has been accepted for publication in Advanced Optical Materials. The effects of encapsulation on the optical properties of TMD monolayers, focusing on the impact of different processing techniques and different dielectric environments have been investigated. Read…