Integration of bow-tie plasmonic nano-antennas on tapered fibers

In this article, a new and flexible approach to control the electric field enhancement of bow-tie nano-antennas by integrating them on the lateral of a tapered optical fiber is proposed. The device is driven by a Q-switched laser and the performance of a fabricated nano-antenna in a quartz slide is...

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Bibliographic Details
Published in:Optics express 2017-04, Vol.25 (8), p.8986-8996
Main Authors: Khaleque, Abdul, Mironov, Evgeny G, Osório, Jonas H, Li, Ziyuan, Cordeiro, Cristiano M B, Liu, Liming, Franco, Marcos A R, Liow, Jong-Leng, Hattori, Haroldo T
Format: Article
Language:English
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Summary:In this article, a new and flexible approach to control the electric field enhancement of bow-tie nano-antennas by integrating them on the lateral of a tapered optical fiber is proposed. The device is driven by a Q-switched laser and the performance of a fabricated nano-antenna in a quartz slide is tested by a Surface Enhanced Raman Scattering (SERS) experiment. A refractive index sensing experiment is also performed and a sensitivity of (240 ± 30) nm/RIU is found in the 1.33-1.35 index range.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.25.008986