Highly sensitive refractive index sensors

2007 ◽  
Author(s):  
Jian Jim Wang
Keyword(s):  
Refractive Index ◽  
Highly Sensitive ◽  
Refractive Index Sensors

scholarly journals Fiber Optic Refractive Index Sensors Based on a Ball Resonator and Optical Backscatter Interrogation

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6199
Author(s):  
Madina Shaimerdenova ◽  
Takhmina Ayupova ◽  
Marzhan Sypabekova ◽  
Daniele Tosi
Keyword(s):  
Refractive Index ◽  
Reflection Spectrum ◽  
Return Loss ◽  
Fiber Optic ◽  
Single Mode ◽  
Wavelength Shift ◽  
Amplitude Change ◽  
Highly Sensitive ◽  
Refractive Index Sensors ◽  
Index Unit

In this work, we introduced fabrication and interrogation of simple and highly sensitive fiber-optic refractive index (RI) sensors based on ball resonators built on the tip of single-mode fibers. The probes have been fabricated through a CO2 fiber splicer, with a fast (~600 s) and repeatable method. The ball resonator acted as a weak interferometer with a return loss below −50 dB and was interrogated with an optical backscatter reflectometer measuring the reflection spectrum. The ball resonators behaved as weak interferometers with a shallow fringe and a spectrum that appeared close to a random signal, and RI sensitivity could be measured either through wavelength shift or amplitude change. In this work, we reported four samples having sensitivity ranges 48.9–403.3 nm/RIU and 256.0–566.2 dB/RIU (RIU = refractive index unit). Ball resonators appeared as a sensitive and robust platform for RI sensing in liquid and can be further functionalized for biosensing.

Highly Sensitive Refractive Index Sensors with Plasmonic Nanoantennas−Utilization of Optimal Spectral Detuning of Fano Resonances

ACS Sensors ◽  
2018 ◽  
Vol 3 (5) ◽  
pp. 960-966 ◽  
Author(s):  
Martin Mesch ◽  
Thomas Weiss ◽  
Martin Schäferling ◽  
Mario Hentschel ◽  
Ravi S. Hegde ◽  
...  
Keyword(s):  
Refractive Index ◽  
Fano Resonances ◽  
Highly Sensitive ◽  
Plasmonic Nanoantennas ◽  
Refractive Index Sensors

scholarly journals Coreless side-polished fiber: a novel fiber structure for multimode interference and highly sensitive refractive index sensors

2017 ◽  
Vol 25 (5) ◽  
pp. 5352 ◽  
Author(s):  
Huazhuo Dong ◽  
Liheng Chen ◽  
Junjie Zhou ◽  
Jianhui Yu ◽  
Heyuan Guan ◽  
...  
Keyword(s):  
Refractive Index ◽  
Multimode Interference ◽  
Fiber Structure ◽  
Highly Sensitive ◽  
Refractive Index Sensors ◽  
Side Polished Fiber

scholarly journals Highly sensitive fiber Bragg grating refractive index sensors

2005 ◽  
Vol 86 (15) ◽  
pp. 151122 ◽  
Author(s):  
Wei Liang ◽  
Yanyi Huang ◽  
Yong Xu ◽  
Reginald K. Lee ◽  
Amnon Yariv
Keyword(s):  
Refractive Index ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Highly Sensitive ◽  
Refractive Index Sensors

Plasmonic Core–Satellite Assemblies as Highly Sensitive Refractive Index Sensors

2015 ◽  
Vol 119 (10) ◽  
pp. 5577-5582 ◽  
Author(s):  
Janak Prasad ◽  
Inga Zins ◽  
Robert Branscheid ◽  
Jan Becker ◽  
Amelie H. R. Koch ◽  
...  
Keyword(s):  
Refractive Index ◽  
Highly Sensitive ◽  
Refractive Index Sensors

Refractive Index Sensors using Polarization-independent Metamaterial

2017 ◽  
Vol 137 (11) ◽  
pp. 415-416 ◽  
Author(s):  
Tomoki Shimizu ◽  
Yoshiaki Kanamori ◽  
Kazuhiro Hane
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensors ◽  
Polarization Independent
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