Extended Data Figure 1.
Resonator performance for various plasmonic materials. (a) Gold (Au) which is interesting for research due to its chemical stability. (b) Copper (Cu) is of interest as it is a CMOS-compatible material. (c) Silver (Ag) feature the best plasmonic properties and could be of interest for high performance applications. Switching capability of an (d) gold and (e) silver ring resonator for a 2V bias The latter utilizes the newest OEO material, which has a three-times-larger electro-optic coefficient r33. The performance improvement enables a significant reduction in terms of the driving voltage. The number at the bottom right indicates the shift in the resonance wavelength.