391 citations · 392 across the 5 of their papers we have counts for
6 papers
Enhancement of Circular Dichroism in Chiral Dielectric Metasurfaces by Ion Beam Irradiation
Anna Fitriana, Katsuya Tanaka, Lukas Raam Jaeger +4
Resonant chiral dielectric metasurfaces can support circular dichroism exceeding that of natural materials, but their small dissipative losses simultaneously limit the maximization…
Hyper-doping of Silicon for Plasmonics in the Telecommunication Range
Jura Rensberg, Angela Barreda, Kevin Wolf +6
We investigate hyper-doping, a promising approach to introduce a high concentration of impurities into silicon beyond its solid solubility limit, for its potential applications in…
Heavily doped zinc oxide with plasma frequencies in the telecommunication wavelength range
Alexander Koch, Hongyan Mei, Jura Rensberg +10
We demonstrate heavy and hyper doping of ZnO by a combination of gallium (Ga) ion implantation using a focused ion beam (FIB) system and post-implantation laser annealing. Ion impl…
A photonic integrated circuit based erbium-doped amplifier
Yang Liu, Zheru Qiu, Xinru Ji +7
Erbium-doped fiber amplifiers have revolutionized long-haul optical communications and laser technology. Erbium ions could equally provide a basis for efficient optical amplificati…
Tuning carrier density and phase transitions in oxide semiconductors using focused ion beams
Hongyan Mei, Alexander Koch, Chenghao Wan +10
We demonstrate spatial modification of the optical properties of thin-film metal oxides, zinc oxide and vanadium dioxide as representatives, using a commercial focused ion beam (FI…
Fast recovery of ion-irradiation-induced defects in Ge2Sb2Te5 thin films at room temperature
Martin Hafermann, Robin Schock, Chenghao Wan +3
Phase-change materials serve a broad field of applications ranging from non-volatile electronic memory to optical data storage by providing reversible, repeatable, and rapid switch…