Optical rectification increased by ~100 times

We have utilized a plasmonic nano-rectenna to increase by ~100 times the efficiency of optical rectification at 1064nm (~280 THz).

Converting optical signals into DC current can be achieved through rectification but the process is typically inefficient for larger energies. The approach shows promise for high-frequency wireless power transmission and, possibly, future rectifying light-harvesting systems.

The work has been published in Advanced Energy Materials:

“High-Frequency Light Rectification by Nanoscale Plasmonic Conical Antenna in Point-Contact-Insulator-Metal Architecture”

Great collaboration with the Italian Institute of Technology.