Voltage Control of Optical Properties by Ionic Gating

PI: Geoffrey Beach

Devices with locally-addressable and dynamically tunable optical properties underpin emerging technologies such as high-resolution reflective displays and dynamic holography. Using a simple device structure, it has been shown that electrical control of optical properties can be achieved through electrochemical hydrogen gating, sourced from moisture in the air. The discovery can enable device scaling into the deep subwavelength regime, and has potential applications in addressable plasmonic devices and reconfigurable metamaterials.

Huang, M., Tan, A. J., Büttner, F., Liu, H., Ruan, Q., Hu, W., Mazzoli, C., Wilkins, S., Duan, C., Yang, J. K. W., and Beach, G. S. D. “Voltage-Gated Optics and Plasmonics Enabled by Solid-State Proton Pumping.” Nature Communications, 10(1): 5030, November 2019. <doi:10.1038/s41467-019-13131-3>