Article
Optics
Yong Wei, Chen Shi, Chunlan Liu, Chunbiao Liu, Tianci Jiang, Rui Wang, Lei Hu, Yonghui Zhang
Summary: This paper proposes a fiber SPR two-dimensional micro displacement sensor based on a coaxial double waveguide with a conical structure. The sensor achieves micro displacement sensing in the x-axis and y-axis directions through the coordination of different light fields emitted by the waveguide and the sensing fiber. The simulation and experimental results demonstrate the high sensitivity and effectiveness of this sensor.
Article
Chemistry, Analytical
Ling-Xin Kong, Meng-Jiao Chi, Cheng Ren, Li-Fa Ni, Zhe Li, Yun-Shan Zhang
Summary: The paper achieves a dual-channel SPR sensor at the end of optical fiber, demonstrating high sensitivity measurements of temperature and humidity through special coating and microcaps on the fiber end facet.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Hongyan Yang, Mengyin Liu, Yupeng Chen, Ling Guo, Gongli Xiao, Houquan Liu, Jianqing Li, Libo Yuan
Summary: This study introduces a graphene-Au coated photonic crystal fiber sensor in the visible regime, which demonstrates high sensitivity and improved sensing performance through geometric optimization. The sensor has potential for applications in designing a new generation of highly sensitive biosensors.
Article
Biophysics
Wan-lu Zheng, Ya-nan Zhang, Li-ke Li, Xue-gang Li, Yong Zhao
Summary: A plug-and-play SPR dual-parameter optical fiber biosensor was developed for simultaneous detection of glucose and cholesterol concentrations. The sensor utilized Au film and Au nanoparticles to excite SPR and generate double SPR resonance valleys. By coating modified PMBA and I3-CD on the sensor probe surface, the sensor could detect glucose and cholesterol through the interaction between the biomolecules and the coatings. The sensor demonstrated ultra-low detection limits and good selectivity.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Bao-Heng Shan, Ling-Xin Kong, Kui-Jun Wu, Shi-Feng Ou, Peng-Fei He, Gang Jin, Zhe Li, Yun-Shan Zhang
Summary: The ultra-compact reflective SPR micmtip temperature probe has high sensitivity and temperature coefficient, suitable for developing various functionalized sensors. Adding Teflon 1600 nano-film on the surface can enhance non-stickiness, moisture-proof and wear resistance, while being hardly disturbed by humidity.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Wandi Zhang, Nannan Luan
Summary: This paper proposes an optical fiber-based surface plasmon resonance (SPR) sensor that can simultaneously measure temperature and refractive index (RI). The sensor utilizes a gold film and a polydimethylsiloxane (PDMS) layer as a temperature sensing medium and is immersed in the liquid analyte. Numerical results show that the sensor supports two resonance peaks in the x-polarized core mode and one resonance peak in the y-polarized core mode, providing peak-based and polarization-based detection approaches. The temperature and RI coefficients obtained from the measurements of the different peaks are presented.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Analytical
Ying Wang, Jingru Wang, Yu Shao, Changrui Liao, Yiping Wang
Summary: The surface-plasmon-resonance-based fiber device, using a PVA film and gold coating, shows high sensitivity for relative humidity sensing and breath monitoring. It exhibits good linear response and fast response recovery time within the ambient humidity range, suitable for a variety of practical applications.
Article
Chemistry, Physical
Bin Li, Fan Zhang, Wei Liu, Xiaoyu Chen, Yuanhongliu Gao, Fang Wang, Xuenan Zhang, Xin Yan, Tonglei Cheng
Summary: This research suggests a new ultraviolet optical fiber sensor based on surface plasmon resonance. The sensor utilizes the sensitivity of SPR to ambient refractive index and ZnO's sensitivity to UV irradiance for UV detection. The thickness of ZnO can affect the UV sensitivity of the sensor.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Multidisciplinary
Yifan Zhou, Ya-nan Zhang, Bo Han, Liangliang Cheng, Dongxu Li, Wanlu Zheng, Yong Zhao
Summary: Optical fiber surface plasmon resonance (SPR) sensors have advantages in chemical and biological sensing. The sensitivity of the sensor is mainly affected by the structure of the optical fiber sensor and the functional material. This paper introduces the structural design of optical fiber sensors and the classification of optical fiber sensitive materials. It also summarizes the latest applications of optical fiber SPR sensors in biochemistry and discusses the possible direction of future sensor development.
Article
Chemistry, Analytical
Anisha Pathak, Banshi D. Gupta
Summary: A facile in-situ solvothermal method was used to synthesize PdNPs/PPy@CNTs nanocomposite, which showed high sensitivity and specificity for sensing hydrazine in groundwater. The nanocomposite's performance was optimized by adjusting composition, thickness, and pH, with a highest sensitivity of 0.09 nm/nM and a limit of detection of 20 nM, making it promising for early detection of hydrazine leakage in combustible environments.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Like Li, Ya-nan Zhang, Wanlu Zheng, Xuegang Li, Yong Zhao
Summary: This study proposes an optical fiber SPR biosensor based on a sandwich model with gold nanoparticles amplification for high sensitivity DNA hybridization detection. The experimental results show a log-linear response in the DNA concentration range of 1 pM-10 nM with high sensitivity and detection limit.
Article
Engineering, Multidisciplinary
Meiju Luo, Qi Wang
Summary: A new dissolved oxygen sensor based on optical fiber surface plasmon resonance (SPR) theory and hemoglobin oxygen transport mechanism was proposed and demonstrated. By modifying carbon nanotubes on the gold film surface of the fiber, the sensor showed increased sensitivity, improved linearity, and reduced LOD compared to the sensor with only hemoglobin modification.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Ruhallah Nasirifar, Mohammad Danaie, Abbas Dideban
Summary: The new surface plasmon resonance biosensor based on inverted graded index optical fiber has a maximum sensitivity of about 7000 nm/RI unit (RIU) and an average figure of merit of 48 RIU-1. The design simplicity and high sensitivity make it a good candidate for low-cost RI sensors suitable for biomaterials.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2021)
Article
Optics
Guangyu Liu, Fengjun Tian, Yipeng Lu, Zhongrui Han, Chenyu Yao, Baoku Wang, Yingjie Zhang, Li Li, Jianzhong Zhang
Summary: A Zeonex based dual-channel optical fiber surface plasmon resonance sensor has been proposed for gaseous analytes in the terahertz regime. The sensor exhibits high sensitivity and multi-channel detection capability, making it practical for biomedical and chemical applications.
Article
Chemistry, Multidisciplinary
Maria Pesavento, Nunzio Cennamo, Luigi Zeni, Letizia De Maria
Summary: This work presents the development of an optical chemosensor based on a synthetic receptor, a molecularly imprinted polymer, for a furanic compound, with potential applications in liquid samples. It explores the effects of MIP layer thickness and washing extent on the quality of the analytical signal, highlighting the importance of these factors in the sensor's performance.
APPLIED SCIENCES-BASEL
(2021)
Article
Optics
Olga Szewczyk, Karol Tarnowski, Aleksander Gluszek, Daniel Szulc, Karolina Stefanska, Pawel Mergo, Grzegorz Sobon
Summary: This study presents a comparison between two types of femtosecond 2 μm sources for seeding of an ultrafast thulium-doped fiber amplifier based on all-normal dispersion supercontinuum and soliton self-frequency shift. The results show that solitons exhibit comparable performance to supercontinuum in terms of relative intensity noise and stability, and can be successfully used as a seed for Tm-doped fiber amplifiers.
Article
Optics
Jakob Fellinger, Georg Winkler, P. E. Collin Aldia, Aline S. Mayer, Valentina Shumakova, Lukas W. Perner, Vito F. Pecile, Tadeusz Martynkien, Pawel Mergo, Grzegorz Sobon, Oliver H. Heckl
Summary: By utilizing the intrinsic intensity modulation of a single cavity dual-color dual-comb, the ambiguity-free measurement length of DC ranging can be expanded, enabling high-precision and high-accuracy distance measurements with a high data acquisition rate.
Article
Engineering, Electrical & Electronic
Olga Rusyakina, Tigran Baghdasaryan, Karima Chah, Pawel Mergo, Hugo Thienpont, Christophe Caucheteur, Francis Berghmans, Thomas Geernaert
Summary: We present an extrinsic surface plasmon-enhanced refractometer based on cladding mode resonance excitation in a photonic crystal fiber (PCF) with a straight fiber Bragg grating (FBG). By selecting suitable PCF parameters, high sensitivity to changes in refractive index close to that of water can be achieved. The sensor fabrication does not require post-processing and multi-target detection is possible using cascaded wavelength-multiplexed gratings.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Kinga Zolnacz, Waclaw Urbanczyk
Summary: We propose an effective method for selectively exciting different combinations of LP01 and LP11 polarization modes in a birefringent optical fiber using a Wollaston prism, rotatable polarizer, and achromatic half-wave plate. The method is minimally wavelength-dependent and can be used for high-power sources. The relative coupling efficiencies of different modes can be continuously tuned, with a suppression rate of unwanted modes exceeding 20 dB.
Article
Optics
Maciej Napiorkowski, Waclaw Urbanczyk
Summary: This article presents a new method for efficiently modeling the conversion of LP modes to vortex modes in gradually twisted highly birefringent fibers. The effects of various factors on the conversion process are analyzed, and the possibility of generating high-purity vortex beams in such fibers is demonstrated.
Article
Optics
Sylwia Majchrowska, Kinga Zolnacz, Waclaw Urbanczyk, Karol Tarnowski
Summary: This study investigates the nonlinear frequency conversions between the six polarization modes of a two-mode birefringent fiber. The aim is to demonstrate that the selective excitation of different combinations of linearly polarized spatial modes at the pump wavelength initiates distinct intermodal-vectorial four-wave mixing processes. The theoretical predictions are verified through numerical simulations and confirmed experimentally.
Article
Physics, Applied
Timm Gao, Lucas Rickert, Felix Urban, Jan Grosse, Nicole Srocka, Sven Rodt, Anna Musial, Kinga Zolnacz, Pawel Mergo, Kamil Dybka, Waclaw Urbanczyk, Grzegorz Sex, Sven Burger, Stephan Reitzenstein, Tobias Heindel
Summary: Deterministic solid state quantum light sources are crucial for future communication networks. This study presents a compact quantum dot single-photon source operating at telecom wavelengths, which achieves high efficiency and key rate in quantum key distribution experiments.
APPLIED PHYSICS REVIEWS
(2022)
Article
Optics
Marta Bernas, Maciej Napiorkowski, Kinga Zolnacz, Gabriela Statkiewicz-Barabach, Anna Kiczor, Pawel Mergo, Waclaw Urbanczyk
Summary: We present a fiber-based optical vortex beam source that operates in broadband or tunable mode within the spectral range of 1100-1400 nm. The source generates vector vortices with total angular momenta of +2, 0, and -2 by converting the linearly polarized (LP11) modes of a two-mode birefringent PANDA fiber. The input power is provided by broadband supercontinuum or tunable Raman solitons generated in the LP11 polarization modes of a specially designed microstructured fiber. The experimental results confirm the high modal and polarization purities of the beams after successive transformations, and the vortex nature of the output beams is verified using shearing interferometry.
Article
Optics
M. A. C. I. E. J. Napiorkowski, W. A. C. L. A. W. Urbanczyk
Summary: We investigate the influence of core ellipticity and core-induced thermal stress on the conversion of LP11 modes to vortex modes in gradually twisted highly birefringent PANDA fibers using an improved perturbation-based modeling method. We find that these two technologically unavoidable factors have significant effects on the conversion process, including shortening the conversion length, altering the input-output assignment between LP11 modes and vortex modes, and modifying the vortex mode structure. We demonstrate that certain fiber geometries allow for the generation of output vortex modes with parallel and antiparallel spins and orbital angular momenta. The simulation results obtained using the modified method agree well with recently published experimental data and provide guidelines for selecting fiber parameters to achieve a short conversion length and the desired polarization structure of output vortex modes.
Proceedings Paper
Engineering, Electrical & Electronic
Anupamaa Rampur, Dirk-Mathys Spangenberg, Grzegorz Stepniewski, Dominik Dobrakowski, Karol Tarnowski, Karolina Stefanska, Adam Pazdzior, Pawel Mergo, Tadeusz Martynkien, Thomas Feurer, Mariusz Klimczak, Alexander M. Heidt
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Dirk-Mathys Spangenberg, Benoit Sierro, Anupamaa Rampur, Pascal Hanzi, Alexander Hartung, Pawel Mergo, Karol Tarnowski, Tadeusz Martynkien, Mariusz Klimczak, Alexander M. Heidt
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Jakob Fellinger, Georg Winkler, Aline S. Mayer, Valentina Shumakova, Lukas W. Perner, P. E. Collin Aldia, Vito F. Pecile, Tadeusz Martynkien, Pawel Mergo, Grzegorz Sobon, Oliver H. Heckl
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
(2021)
Article
Engineering, Electrical & Electronic
Olga Szewczyk, Piotr Pala, Karol Lech Tarnowski, Jacek Olszewski, Chuang Lu, Aleksandra Foltynowicz, Francisco Senna Vieira, Pawel Mergo, Jaroslaw Sotor, Grzegorz Sobon, Tadeusz Martynkien
Summary: The study introduces a microstructured silica-based fiber design for widely tunable soliton self-frequency shift with high conversion efficiency, strong birefringence, and excellent polarization extinction ratio, covering important wavelengths and demonstrating high coherence in shifted solitons.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
