Next Article in Journal
Dielectric Properties and Switching Processes of Barium Titanate–Barium Zirconate Ferroelectric Superlattices
Next Article in Special Issue
Al/Si Nanopillars as Very Sensitive SERS Substrates
Previous Article in Journal
Microbending Experiments on Pure Magnesium with Nonbasal Slip Orientation
Previous Article in Special Issue
Optical Third Harmonic Generation Using Nickel Nanostructure-Covered Microcube Structures
Open AccessArticle

Hybrid Metal-Dielectric Nano-Aperture Antenna for Surface Enhanced Fluorescence

1
State Key Laboratory for Mesoscopic Physics & Collaborative Innovation Center of Quantum Matter, School of Physics, Peking University, Beijing 100871, China
2
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
3
EPF—École d’ingénieurs, 3 bis rue Lakanal, 92330 Sceaux, France
*
Author to whom correspondence should be addressed.
Materials 2018, 11(8), 1435; https://doi.org/10.3390/ma11081435
Received: 26 June 2018 / Revised: 10 August 2018 / Accepted: 13 August 2018 / Published: 14 August 2018
(This article belongs to the Special Issue Plasmonics and its Applications)
A hybrid metal-dielectric nano-aperture antenna is proposed for surface-enhanced fluorescence applications. The nano-apertures that formed in the composite thin film consist of silicon and gold layers. These were numerically investigated in detail. The hybrid nano-aperture shows a more uniform field distribution within the apertures and a higher antenna quantum yield than pure gold nano-apertures. The spectral features of the hybrid nano-apertures are independent of the aperture size. This shows a high enhancement effect in the near-infrared region. The nano-apertures with a dielectric gap were then demonstrated theoretically for larger enhancement effects. The hybrid nano-aperture is fully adaptable to large-scale availability and reproducible fabrication. The hybrid antenna will improve the effectiveness of surface-enhanced fluorescence for applications, including sensitive biosensing and fluorescence analysis. View Full-Text
Keywords: plasmonics; nano-aperture; surface-enhanced fluorescence; antenna; hybrid plasmonics; nano-aperture; surface-enhanced fluorescence; antenna; hybrid
Show Figures

Figure 1

MDPI and ACS Style

Lu, G.; Xu, J.; Wen, T.; Zhang, W.; Zhao, J.; Hu, A.; Barbillon, G.; Gong, Q. Hybrid Metal-Dielectric Nano-Aperture Antenna for Surface Enhanced Fluorescence. Materials 2018, 11, 1435.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop