Journal
NATURE COMMUNICATIONS
Volume 12, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41467-020-20273-2
Keywords
-
Categories
Funding
- Multi University Research Initiative - US Air Force [FA9550-17-1-0002]
- AFOSR [FA9550-18-1-0323]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) [NRF-2016R1A6A3A03012480]
- Rubicon Fellowship from the Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO)
- Independent Research Funding Denmark [7026-00117B]
- National Science Foundation [ECCS-1542152]
Ask authors/readers for more resources
Researchers constructed a nanoelectromechanical system that utilizes unique behavior between sub-nanometer plasmonic nanoparticles to create an electro-optical modulator, with a very large mechanical tunability observed at nanometer gap spacing.
The ability of two nearly-touching plasmonic nanoparticles to squeeze light into a nanometer gap has provided a myriad of fundamental insights into light-matter interaction. In this work, we construct a nanoelectromechanical system (NEMS) that capitalizes on the unique, singular behavior that arises at sub-nanometer particle-spacings to create an electro-optical modulator. Using in situ electron energy loss spectroscopy in a transmission electron microscope, we map the spectral and spatial changes in the plasmonic modes as they hybridize and evolve from a weak to a strong coupling regime. In the strongly-coupled regime, we observe a very large mechanical tunability (similar to 250meV/nm) of the bonding-dipole plasmon resonance of the dimer at similar to 1nm gap spacing, right before detrimental quantum effects set in. We leverage our findings to realize a prototype NEMS light-intensity modulator operating at similar to 10MHz and with a power consumption of only 4 fJ/bit.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available