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Plasmonic sectoral horn nanoantennas.
Optics Letters
|May 31, 2014
Summary
Plasmonic sectoral horn nanoantennas offer tunable directivity and easy fabrication for near-infrared applications. These nanoantennas significantly boost received power in optical wireless nanolinks.
Area of Science:
- Photonics
- Nanotechnology
- Antenna Engineering
Background:
- Plasmonic nanoantennas are crucial for manipulating light at the nanoscale.
- Sectoral horn antennas are well-established in radiofrequency (RF) applications for their directivity and coupling properties.
Purpose of the Study:
- To investigate plasmonic sectoral horn nanoantennas operating at near-infrared (NIR) wavelengths.
- To explore their potential for optical wireless nanolinks.
Main Methods:
- Fabrication and characterization of plasmonic sectoral horn nanoantennas.
- Numerical simulations to analyze antenna performance.
- Integration into an optical wireless nanolink setup.
Main Results:
- Demonstrated tunable high directivity, simple fabrication, and waveguide coupling for plasmonic horns.
- Achieved a 60-fold increase in received power in an optical wireless nanolink compared to dipole nanoantennas.
Conclusions:
- Plasmonic sectoral horn nanoantennas exhibit advantageous features similar to RF counterparts.
- These nanoantennas are promising for enhancing performance in optical wireless nanolinks.
