Silicon surface lattice resonances

In collaboration with the group of Jaime Gómez Rivas, we have recently reported surface lattice resonances in arrays of silicon nanoantennas to enhance light-matter interaction. The wealth of resonances of the individual dielectric nanoparticles allowed us to see collective resonances with both electric and magnetic dipole character. We demonstrated enhanced light emission and strong light-matter coupling in a series of articles.

In the article in Advanced Optical Materials “Enhanced light emission by magnetic and electric resonances in dielectric metasurfaces”, we report the observation of Mie surface lattice resonances and their use to enhance light emission.

In the ACS Photonics “Exciton-Polaritons with Magnetic and Electric Character in All-Dielectric Metasurfaces”, we demonstrated reaching the strong coupling regime between lattices of silicon antennas and organic molecules.

In the Journal of Physical Chemistry C, we have published “Collective Mie Exciton-Polaritons in an Atomically Thin Semiconductor”. Bright excitons in monolayer WS2 couple to arrays of silicon nanoantennas strongly for electric surface lattice resonances (SLR), but the coupling is much weaker for magnetic SLRs. The differences are due to the in-plane orientation of the excitons in the 2D semiconductor.

Congrats Gabi, Shunsuke, and Shaojun for the publications!