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Electromechanically Tunable Suspended Optical Nanoantenna
- Source :
- Nano Letters. 16:2680-2685
- Publication Year :
- 2016
- Publisher :
- American Chemical Society (ACS), 2016.
-
Abstract
- Coupling mechanical degrees of freedom with plasmonic resonances has potential applications in optomechanics, sensing, and active plasmonics. Here we demonstrate a suspended two-wire plasmonic nano-antenna acting like a nano-electrometer. The antenna wires are supported and electrically connected via thin leads without disturbing the antenna resonance. As a voltage is applied, equal charges are induced on both antenna wires. The resulting equilibrium between the repulsive Coulomb force and the restoring elastic bending force enables us to precisely control the gap size. As a result the resonance wavelength and the field enhancement of the suspended optical nano-antenna (SONA) can be reversibly tuned. Our experiments highlight the potential to realize large bandwidth optical nanoelectromechanical systems (NEMS).
- Subjects :
- Materials science
FOS: Physical sciences
Physics::Optics
Bioengineering
02 engineering and technology
01 natural sciences
Coulomb's law
symbols.namesake
Optics
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
0103 physical sciences
General Materials Science
010306 general physics
Plasmon
Optomechanics
Nanoelectromechanical systems
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Mechanical Engineering
Resonance
Metamaterial
General Chemistry
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
Condensed Matter Physics
Surface plasmon polariton
symbols
0210 nano-technology
business
Optics (physics.optics)
Physics - Optics
Voltage
Subjects
Details
- ISSN :
- 15306992 and 15306984
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- Nano Letters
- Accession number :
- edsair.doi.dedup.....dc1e57092ae51dae9f0f3a0daaf198cb