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Recent Advances in Optical Waveguide Sensors 2021

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

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 3812

Special Issue Editor


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Guest Editor
School of System Engineering, University of Fukui, Fukui 910-8507, Japan
Interests: optical fiber sensors and devices; biophotonic sensors; optical networks; micro and nano devices; polymer photonics; optical sensors for autonomous driving
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Special Issue Information

Dear Colleagues,

Optical waveguides have been applied in various photonic applications, including sensors, because of their integrated advantages, such as robustness and compactness, which have expanded the possibilities regarding sensing capability. Optical waveguides have been microfabricated using semiconductor and organic materials. For example, the sensing materials both on and in optical waveguides are well-known in their use as optical, chemical, and biochemical sensors. The porous ring and slot structure in an optical waveguide has the advantage of accepting various kinds of materials which can improve the sensing capability.

This Special Issue aims to present novel and innovative application of sensors and devices based on optical waveguides. For this Special Issue, we are soliciting papers addressing the wide range of applications of optical waveguide sensors—both review articles and original research papers related to the application of optical waveguide sensors and devices are welcome.

Prof. Dr. Yasufumi Enami
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optical waveguide sensors
  • novel structures of waveguide devices for sensing applications
  • novel materials for waveguide sensors
  • optical and electrical integration for sensing

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Published Papers (1 paper)

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Research

12 pages, 6180 KiB  
Article
Straight Long-Range Surface Plasmon Polariton Waveguide Sensor Operating at λ0 = 850 nm
by Yan Xu, Fei Wang, Yang Gao, Daming Zhang, Xiaoqiang Sun and Pierre Berini
Sensors 2020, 20(9), 2507; https://doi.org/10.3390/s20092507 - 28 Apr 2020
Cited by 9 | Viewed by 3125
Abstract
A bulk refractive index sensor based on a straight long-range surface plasmon polariton (LRSPP) waveguide is theoretically designed. The waveguide sensor consists of an Au stripe that is embedded in ultraviolet sensitive polymer SU-8. The geometric parameters are optimized by finite difference eigenmode [...] Read more.
A bulk refractive index sensor based on a straight long-range surface plasmon polariton (LRSPP) waveguide is theoretically designed. The waveguide sensor consists of an Au stripe that is embedded in ultraviolet sensitive polymer SU-8. The geometric parameters are optimized by finite difference eigenmode method at the optical wavelength of 850 nm. The sensitivity of 196 dB/RIU/mm can be obtained with a 1.5 μm wide, 25 nm thick Au stripe waveguide. Straight LRSPP waveguides are fabricated by a double layer lift-off process. Its optical transmission is characterized to experimentally prove the feasibility of the proposed design. This sensor has potential for the realization of a portable, low-cost refractometer. Full article
(This article belongs to the Special Issue Recent Advances in Optical Waveguide Sensors 2021)
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