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This paper presents a comprehensive study on a novel multilayer surface plasmon resonance (SPR) biosensor designed for detecting trace-level toxins in liquid samples with exceptional precision and efficiency. Leveraging the Kretschmann…

Systems and Control · Electrical Eng. & Systems 2025-01-31 Suripto Bhuiyan , Michael Geller

This work presents a high-performance, multilayered surface plasmon resonance (SPR)-based sensor designed to enhance performance parameters in the near-infrared (NIR) region through angular interrogation. The multi-layered sensor consists…

Optics · Physics 2025-11-11 R. Runthala , N. Grover , P. Arora

Surface Plasmon Resonance (SPR) is an important bio-sensing technique for real-time label-free detection. However, it is pivotal to optimize various parameters of the sensor configuration for efficient and highly sensitive sensing. To that…

Biological Physics · Physics 2020-07-20 Ehsan Kabir , Syed Mohammad Ashab Uddin , Sayeed Shafayet Chowdhury

Surface plasmon resonance (SPR) sensors built on photonic crystal fibers (PCFs) have recently become a promising category of optical sensing platforms. This is primarily due to their high sensitivity, compact structural design and ability…

Surface plasmon resonance (SPR) has been widely utilized to improve the absorption performance in the photosensors. Graphene has emerged as a promising plasmonic material, which supports tunable SPR and shows significant flexibility over…

Optics · Physics 2018-09-11 Shuyuan Xiao , Tao Wang , Xiaoyun Jiang , Boyun Wang , Chen Xu

In this study, we present a highly sensitive Surface Plasmon Resonance (SPR)-based biosensor integrated with a circular-lattice Photonic Crystal Fiber (PCF) for early-stage cancer detection. The proposed sensor leverages the synergy between…

The measurement of in-plane birefringence ($\Delta{n}$) of ultrathin film is challenging due to a significant deviation of physical properties of materials in ultrathin regime as compared to that in bulk state. Surface plasmon resonance…

Soft Condensed Matter · Physics 2021-01-21 Amrit Kumar , Raj Kumar Gupta , V. Manjuladevi , Ashutosh Joshi

Plasmonic sensing is an established technology for real-time biomedical diagnostics and air-quality monitoring. While intensity and wavelength tracking are the most commonly used interrogation methods for Surface Plasmon Resonance (SPR),…

Various metals (Ag, Al, Au, Bi, Cu), polymers (polyvinylpyrrolidone, polystyrene), and electrically conductive polymers (polyacetylene, polyaniline, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate) were subjected to a particle swarm…

Optics · Physics 2017-02-23 Casey Kneale , Karl S. Booksh

We present a simulation guided design for a multilayer surface plasmon resonance (SPR) based biosensor capable of detecting refractive index changes in a target induced by analytes. Surface plasmons are excited using a hybrid Kretschmann…

Optics · Physics 2025-12-23 R. Runthala , V. K. Venkatesh , D. Gupta , P. Arora

Two-dimensional transition metal dichalcogenides (TMDCs), as promising alternative plasmonics supporting materials to graphene, exhibit potential applications in sensing. Here, we propose an ultrasensitive, accurate long-range surface…

Applied Physics · Physics 2018-12-19 Yi Xu , Chang-Yu Hsieh , Lin Wu , L. K. Ang

Microplastics are pervasive pollutants that pose threats to the environment and human health. Detecting them reliably represents a crucial step toward finding solutions. While traditional techniques like vibrational and mass spectroscopies…

Instrumentation and Detectors · Physics 2025-05-29 Natalia A. Gutierrez Andrade , Yunfeng Nie , Wendy Meulebroeck , Heidi Ottevaere

Photonic crystal fiber (PCF)-based plasmonic sensors have gained considerable attention because of their highly sensitive performance and broad range of sensing regimes. In this work, a relatively simple ultra-sensitive PCF-based surface…

Biosensors based on the principle of surface plasmon resonance (SPR) detection were used to measure biomolecular interactions in sarcomeres and changes of the dielectric constant of tubulin samples with varying concentration. At SPR,…

Quantum Physics · Physics 2015-06-26 Hans A. Schuessler , Alexander A. Kolomenskii , Andreas Mershin , D. V. Nanopoulos

We report on a Surface-Plasmon-Resonance (SPR) technique based on Fourier -Transform - Infra - Red (FTIR) spectrometer. In contrast to the conventional surface plasmon technique, operating at a fixed wavelength and a variable angle of…

Soft Condensed Matter · Physics 2013-03-19 V. Lirtsman , M. Golosovsky , D. Davidov

Inspired by the classic theory, we suggest that the performance of a D-shaped fiber optical surface plasmon resonance (SPR) sensor can be improved by manipulating the fiber core mode. To demonstrate this, we propose a novel fiber SPR sensor…

Applied Physics · Physics 2018-05-16 Zhixin Tan , Xuejin Li , Yuzhi Chen , Ping Fan

Surface plasmon resonance (SPR) has been intensively investigated and widely exploited to trap the incident light and enhance absorption in the optoelectronic devices. The availability of graphene as a plasmonic material with strong…

Plasmonic metamaterials support the localized surface plasmon resonance (LSPR), which is sensitive to the change in the dielectric environment and highly desirable for ultrasensitive biochemical sensing. In this work, a novel design of…

Optics · Physics 2017-11-15 Shuyuan Xiao , Tao Wang , Yuebo Liu , Xu Han , Xicheng Yan

The use of graphene in surface plasmon resonance sensors, covering a metallic (plasmonic) film, has a number of demonstrated advantages, such protecting the film against corrosion/oxidation and facilitating the introduction of functional…

Mesoscale and Nanoscale Physics · Physics 2022-10-26 Aline dos S. Almeida , D. A. Bahamon , Nuno M. R. Peres , Christiano J. S. de Matos

Hexagonal boron nitride (hBN) and black phosphorus (bP) are crystalline materials that can be seen as ordered stackings of two-dimensional layers, which lead to outstanding anisotropic physical properties. The knowledge of the thermal…

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