Jul 29, 2025
Abstract: In this article, sensitivity enhancement in U-shaped evanescent wave fiber optic sensor (EWFS) has been reported. The overall effect of surface roughness, material deformation,
Jun 09, 2026
In summary, the fabrication and characterization of a U-shaped fiber optic pH sensor based on evanescent wave absorption and sol–gel immobilization technique have been carried out.
Oct 07, 2025
The advantages of fiber optic sensors over electrical sensors are discussed, while electrochemical stability issues of fiber-implanted batteries are critically assessed.
Nov 16, 2025
Abstract With the urgent demand of low concentration molecular detection, an innovative solution is presented to improve the sensitivity of surface plasmon resonance (SPR) sensors through
Aug 05, 2025
Antibiotics represent one of the most harmful contaminants of living environment and drinking water. Therefore, we designed a U-shaped fiber optic lossy mode resonance sensor for the detection of
May 18, 2026
The development of U-shaped fiber optic sensors (FOSs) has been reported ubiquitously over the past decades with much emphasis put into optimizing its sensitivity. The typical optimizing
Feb 23, 2026
In this paper, a U-shaped SPR sensor coated with GeS nanosheets on the basis of a conventional gold film is proposed, as depicted in Fig. 1.
Oct 19, 2025
Lu2O3/h-BN Modified U-Shaped Fiber Optic SPR Sensor With Improved Sensitivity Abstract: Rapid and incredibly sensitive analyte detection is crucial in a variety of settings, including medical diagnostics.
Nov 16, 2025
To achieve highly sensitive measurements of strain, a U-shaped optical fiber sensor (OFS) based on seven-core photonic crystal fiber (SCPCF) was designed. The proposed Mach-Zehnder-based
Jan 04, 2026
This paper is the second part of a review on U-shaped FOSs and discusses the sensing mechanisms, applications, possible improvements, and future scope of the U-shaped FOSs.
Feb 13, 2026
In the present paper, a novel fiber optic RI device, which combines low cost, high resolution, simplicity of design and miniaturized in structure has been described. The sensor consists
Dec 06, 2025
A novel sensitized U-shaped fiber-optic sensor based on the localized surface plasmon resonance (LSPR) principle was proposed to detect virus RNA, especially COVID-19 RNA
May 16, 2026
This paper proposes a high-sensitivity U-shaped optical fiber sensor based on indium tin oxide (ITO) for surface plasmon resonance (SPR) sensing. Finite element simulations reveal that
Oct 05, 2025
We present a high-sensitivity U-shaped fiber-optic temperature sensor based on a single-mode fiber (SMF) encapsulated within a polytetrafluoroethylene (PTFE) tube. Leveraging PTFE''s
Jul 19, 2025
Intrinsic U-shaped fiber optic sensors (FOSs) are well established in the field. With greater penetration depth and evanescent power, these sensors exhibit profound sensitivity and have supported a wide
Aug 01, 2025
This paper aims to provide researchers with guidelines on the factors to consider when choosing a material for bent fiber optic sensors, depending on
Aug 27, 2025
Also, diferent geometries have been reported to enhance the sensitivity of fibre sensors even more. In this paper, we report a U-shaped optical fibre sensor that utilises evanescent wave absorption as its
Jul 22, 2025
Flow velocity, direction, and salinity are essential parameters for underwater environmental monitoring. However, current methods face significant challenges in achieving
Jul 17, 2025
Here, a tungsten diselenide (WSe 2) modified U-shaped fiber optic SPR sensor is proposed. It is found that the sensing performances of the proposed U-shaped probe can be
Dec 22, 2025
A fibre-optic evanescent field absorption sensor based on a U-shaped sensing probe is described. The influences of fibre core diameter, bending radius of the probe and the refractive index of the fluid on
Jan 15, 2026
Principles of sensing mechanisms for U-shape polymer fiber sensors are discussed. Possible applications of U-shape fiber sensors in fields such as biology, chemistry and industry are
Jul 13, 2026
The ITO coating''s strong adhesion ensures long-term reliability. With its simple structure, ease of fabrication, and superior sensitivity/FOM, this SPR
Mar 09, 2026
A Fiber Optic Shape Sensor (FOSS) can be defined as fiber optic cable with multiple cores and embedded strain sensors. The working principle is the following: in each instrumented section
Oct 11, 2025
A novel fiber optic evanescent field absorption sensor having high sensitivity and linear dynamic range is proposed. High sensitivity is achieved by using a U-shaped probe while linear
Jun 10, 2026
Request PDF | U-shape Fiber Optic-Based SPR Sensor | This chapter provides an in-depth exploration of U-type fiber optic sensors and their applications in SPR sensing. Initially, the
Sep 06, 2025
Initially, the fundamental principles of U-type fiber optic sensors are introduced. Subsequently, the chapter delves into the structure and operation of recently researched and
Jul 03, 2026
This review outlines the theoretical model and design considerations along with the fabrication process of U-shaped FOSs.
Mar 15, 2026
In view of their significant benefits, U-shaped FOSs deserve a thorough investigation. This review outlines the theoretical model and design considerations along with the fabrication
Jun 22, 2026
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