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Optical Fiber Plasmonic Sensors 2021

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Optical Sensors".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 2486

Special Issue Editors


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Guest Editor
1. CAP/INESC TEC—Technology and Science and FCUP—Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
2. Department of Physics, School of Sciences and Technology, University de Trás-os-Montes e Alto Douro, Vila Real, Portugal
Interests: porto optical sensors; integrated optics; spectroscopy and biophysics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
INESC TEC—Institute for Systems and Computer Engineering, Technology and Science and Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
Interests: optical sensing; optical fiber flowmeter; optical fiber sensors; gas sensing; spectral; biosensor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Optical fiber sensor technology is the object of continuous, dynamic fundamental and applied research, with a variety of new applications and developments. Sensors based on plasmon are being explored in fields such as chemical and biological sensing, pharmaceutical and chemical industry sensing, localized and extended plasmon-based sensors, and surface-enhanced spectroscopy.

In this sense, we invite you to submit manuscripts for the upcoming Special Issue dedicated to all aspects relevant to plasmonic-based optical fiber sensing. Topics covered include state-of-the-art technologies in plasmonic sensing devices and systems, novel methodologies, plasmonic structures, SERS and SEF, functionalization protocols of metallic surfaces, specific sensing protocols, different sensor platforms and configurations, sensing mechanisms and applications.

Full papers, communications and reviews are welcome. Reviews must offer a critical overview of the state of the art of fundamentals, technologies and applications.

Topics include but are not limited to the following:

  • Physical, chemical and biological sensors
  • Sensors based on evanescent wave spectroscopy
  • SPR, LSPR, LRSPR, SERS;
  • Micro- and nanofabrication, including gratings (FBG, LPFG), tapers, etched configurations;
  • Functionalization methods and thin films coatings (Including noble metals, oxides and graphene);
  • Special fibers (photonic crystal fibers, D-type, etc.);
  • Theoretical and simulation studies;
  • Multiplexing of several parameters;
  • Sensor networking and distributed sensing;
  • Applications including, but not limited to: agri-food, aquaculture, mechanical, civil, pharmaceutical, oil and gas industries, human and animal health monitoring, environment monitoring, harsh environments, food processing and monitoring and medical instrumentation.

Prof. José Manuel M. M. de Almeida
Dr. Luís C. Coelho
Guest Editors

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • Chemical sensors and biosensors
  • Evanescent wave and infrared spectroscopy
  • Plasmonic-based sensors
  • Micro and nanofabrication
  • Functionalization methods
  • Special fibers
  • Theoretical and simulation studies
  • Multiplexing of several parameters
  • Sensor networking and distributed sensing
  • Sensor applications

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Published Papers (1 paper)

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Research

12 pages, 4327 KiB  
Communication
Differential Refractive Index Sensor Based on Coupled Plasmon Waveguide Resonance in the C-Band
by Qian Yang, Laixu Gao, Changwei Zou, Wei Xie, Canxin Tian, Zesong Wang, Feng Liang, Yihong Ke, Xinmei Zhou and Songquan Li
Sensors 2021, 21(23), 7984; https://doi.org/10.3390/s21237984 - 30 Nov 2021
Cited by 4 | Viewed by 1759
Abstract
We proposed a differential fiber-optic refractive index sensor based on coupled plasmon waveguide resonance (CPWR) in the C-band. The sensor head is a BK7 prism coated with ITO/Au/ITO/TiO2 film. CPWR is excited on the film by the S-polarized components of an incident [...] Read more.
We proposed a differential fiber-optic refractive index sensor based on coupled plasmon waveguide resonance (CPWR) in the C-band. The sensor head is a BK7 prism coated with ITO/Au/ITO/TiO2 film. CPWR is excited on the film by the S-polarized components of an incident light. The narrow absorption peak of CPWR makes it possible to realize dual-wavelength differential intensity (DI) interrogation by using only one incident point. To implement DI interrogation, we used a DWDM component to sample the lights with central wavelengths of 1529.55 and 1561.42 nm from the lights reflected back by the sensor head. The intensities of the dual-wavelength lights varied oppositely within the measurement range of refractive index, thus, a steep slope was produced as the refractive index of the sample increased. The experimental results show that the sensitivity is 32.15/RIUs within the measurement range from 1.3584 to 1.3689 and the resolution reaches 9.3 × 10−6 RIUs. Benefiting from the single incident point scheme, the proposed sensor would be easier to calibrate in bio-chemical sensing applications. Moreover, this sensing method is expected to be applied to retro-reflecting SPR sensors with tapered fiber tip to achieve better resolution than wavelength interrogation. Full article
(This article belongs to the Special Issue Optical Fiber Plasmonic Sensors 2021)
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