Monika Emmerling

TL;DR: In this paper, an exciton-polariton topological insulator was shown to be possible without a magnetic field in an array of semiconductor microcavities, where an applied magnetic field leads to the unidirectional flow of a polariton wavepacket around the edge of the array.

TL;DR: In this article, the authors demonstrate an electrically driven nanoscale transmitter based on the broadband quantum shot noise of electrons tunnelling across a feed gap, which can be tuned via the applied voltage.

TL;DR: By means of self-assembly, side-by-side aligned gold nanorod dimers with robust atomically defined gaps reaching below 0.5 nm are obtained, opening new perspectives for atomically resolved spectroscopic imaging, deeply nonlinear optics, ultrasensing, cavity optomechanics, as well as for the realization of novel quantum-optical devices.

TL;DR: The existence of atomically-confined light fields in these gaps is demonstrated by observing extreme Coulomb splitting of corresponding symmetric and anti-symmetric dimer eigenmodes of more than 800 meV in white-light scattering experiments as mentioned in this paper.

TL;DR: Analysis of the electric properties demonstrates that in the antenna gaps direct current (DC) electric fields of 10(8) V/m can consistently be achieved and maintained over extended periods of time without noticeable damage.