Article
Chemistry, Analytical
Wei Ning, Shunming Hu, Chen Zhou, Jie Luo, Yu Li, Chuyan Zhang, Zewei Luo, Yongxin Li
Summary: In this study, a J-shaped optical fiber probe was designed to engineer a localized surface plasmon resonance (LSPR) aptamer biosensor for the rapid and ultrasensitive detection of Helicobacter pylori. Through creative designs and optimizations, this biosensor enables label-free and sensitive detection with low detection limit and wide linear range. Moreover, it can detect pathogenic bacteria from actual water samples in one step without any sample pretreatment.
ANALYTICA CHIMICA ACTA
(2023)
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
Chemistry, Multidisciplinary
Jianying Jing, Kun Liu, Junfeng Jiang, Tianhua Xu, Lu Xiao, Xiaohan Zhan, Tiegen Liu
Summary: An optical fiber near-field enhanced plasmonic resonance immunoprobe is developed for the detection of the hepatocellular carcinoma biomarker, alpha-fetoprotein, which serves as an important supplementary approach for early screening and diagnosis of tumors.
Article
Engineering, Electrical & Electronic
Lixia Li, Linlin Zhao, Xueyang Zong, Penglei Li, Kun Yu, Yufang Liu
Summary: This work demonstrates a simple, portable and highly sensitive optical fiber surface plasmon resonance (SPR) sensor for the detection of Hg2+. By investigating the effects of different incident angles, the sensor adopts a wedged tip probe with a 75 degrees incident angle. The plasmonic sensor exhibits superior refractive index bulk sensitivity in the near-infrared band, making it a promising tool for ultra-sensitive and label-free monitoring.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Mengdi Lu, Wei Peng, Ming Lin, Fang Wang, Yang Zhang
Summary: A self-assembled templating technique using block copolymer layer was proposed for LSPR sensors, resulting in a high uniformity and density of gold nanoparticle monolayer. The performance in LSPR resonance wavelength and refractive index sensitivity significantly improved compared to conventional techniques, with a notable decrease in detection limit.
Article
Engineering, Electrical & Electronic
Yumei Zhang, Liyun Ding, Jue Zhao, Xingdong Jiang, Fei Ma
Summary: Acetylcholine is an important neurotransmitter that can be detected using a simple electrostatic interaction to create an optical fiber biosensor. The biosensor has high sensitivity and a linear range, making it more convenient, simple, and cost-effective compared to traditional detection methods.
IEEE SENSORS JOURNAL
(2023)
Article
Spectroscopy
Hyeong-Min Kim, Hyo-Jun Kim, Jae-Hyoung Park, Seung-Ki Lee
Summary: In this study, gold-palladium bimetallic nanodisks were successfully patterned on optical fibers, exhibiting high refractive index sensitivity and excellent hydrogen sensing performance. The fiber-optic plasmonic nanoprobe, based on nanosphere lithography and chemical growth, has the advantages of high throughput and low cost, making it suitable for remote sensing to detect dangerous environments in the clean energy era.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Engineering, Environmental
Pengwei Chen, Yunyun Huang, Ye Bo, He Liang, Aoxiang Xiao, Bai-Ou Guan
Summary: This study presents the development of a 3D plasmonic nanointerface to enhance the detection and sizing of single nanoparticles in real time using optical microfibers. The integration of Cu3-xP nanocrystals into a Cu-BTC framework and tuning the localized-surface plasmon resonance allows for the binding of target nanoparticles on the microfiber. By confining the resonance field on the microfiber with three dimensions, the sensor overcomes its sensitivity limit and enables the detection and sizing of individual nanoparticles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Adilson R. Prado, Camilo A. R. Diaz, Luis Guilherme Lyra Nunes, Jairo P. Oliveira, Marco C. C. Guimaraes, Arnaldo Leal-Junior, Moises R. N. Ribeiro, Maria J. Pontes
Summary: A hydrogen sulphide (H2S) gas detector was developed in this work, utilizing silica optical fiber and gold nanoparticles to achieve detection in the range of 0.4 to 2.0 ppm. The strong bonding energy between gold and sulfur was the main basis for the operation principle of the colorimetric detector.
Article
Engineering, Electrical & Electronic
Santosh Kumar, Zhu Guo, Ragini Singh, Qinglin Wang, Bingyuan Zhang, Shuang Cheng, Feng-Zhen Liu, Carlos Marques, Brajesh Kumar Kaushik, Rajan Jha
Summary: This study introduces a fiber-optic localized surface plasmon resonance (LSPR) based biosensor for sensitive detection of Shigella bacterial species. By controlled etching and coating with nanomaterials, the sensor achieves increased refractive index sensitivity and excitation of localized plasmons. Results show successful and efficient detection of Shigella with high sensitivity, making it potentially valuable in the future as an alternative to existing commercial methods.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Yong Wei, Chunbiao Liu, Yonghui Zhang, Chen Shi, Yixiong Tang, Chunlan Liu, Yudong Su, Chen Wang, Yu Zhang, Zhihai Liu
Summary: This study proposes an all-fiber microfluidic chip based on the principle of surface plasmon resonance (SPR) for arctigenin detection, reducing the diameter of the active ingredient sensor of traditional Chinese medicine (TCM). By using capillary fiber as the microfluidic channel and constructing the SPR sensing zone on its inner wall, the specific detection of arctigenin was achieved with a detection sensitivity of 0.205 nm/(μg/mL) and a limit of detection (LOD) of 0.49 μg/mL. The microfluidic chip also demonstrated specific detection capability in a mixed solution. In conclusion, this all-fiber microfluidic chip provides a new solution for miniaturization, flexibility, and rapid detection of active molecules in TCM.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Santosh Kumar, Ragini Singh, Qingshan Yang, Shuang Cheng, Bingyuan Zhang, Brajesh Kumar Kaushik
Summary: The research developed a sensor probe to detect ascorbic acid levels, which exhibits high sensitivity and specificity. By modifying the sensor probe, its biocompatibility and detection limit can be enhanced. The sensor also features a wide linear detection range and selectivity towards various other biomolecules.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Yifan Duan, Fang Wang, Xinpu Zhang, Qiang Liu, Mengdi Lu, Wei Ji, Yang Zhang, Zhenguo Jing, Wei Peng
Summary: The article demonstrates a tilted fiber Bragg grating (TFBG) plasmonic sensor for highly sensitive and selective ultra-low-concentration Hg2+ detection using thymine (T) - Hg - thymine (T) (T-Hg-T) base asymmetric pairing and Au nanoparticles (AuNPs). By measuring spectral changes, accurate detection of surface perturbation, specifically a double helix T-Hg-T structure, is achieved in the presence of Hg2+. The sensor shows excellent detection capability for Hg2+ in various samples, from ultrapure/tap water to clinical human serum, indicating potential applications in environmental and clinical settings.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Ming Lin, Mengdi Lu, Yuzhang Liang, Li Yu, Wei Peng
Summary: Localized surface plasmon resonance (LSPR) and lossy mode resonance (LMR) are simultaneously excited by gold nanoparticle (AuNP) arrays and top-coated polyelectrolyte layer on optical fibers, enhancing the sensitivity of the optical sensor. Thicker polyelectrolyte layer leads to higher refractive index sensitivity, and the optimized sensor with 50 nm AuNPs and 20 PAH/PSS bilayers shows improved stability and sensitivity.
ACS APPLIED NANO MATERIALS
(2022)
Article
Instruments & Instrumentation
Guo Zhu, Lokendra Singh, Yu Wang, Ragini Singh, Bingyuan Zhang, Fengzhen Liu, Brajesh Kumar Kaushik, Santosh Kumar
Summary: This study developed a sensor for detecting AA samples by combining a tapered single-mode optical fiber with AuNPs and ZnO-NPs, successfully creating two different biosensor probes. Through material characterization and related experiments, the good performance of these probes in terms of AA sample response, stability, and selectivity has been demonstrated.
Article
Optics
Ugaitz Elu, Luke Maidment, Lenard Vamos, Francesco Tani, David Novoa, Michael H. Frosz, Valeriy Badikov, Dmitrii Badikov, Valentin Petrov, Philip St. J. Russell, Jens Biegert
Summary: A carrier-envelope-phase-stable light source, driven by a mid-infrared frequency comb, is presented, allowing spectral coverage across seven optical octaves from ultraviolet to terahertz. The high-brightness source offers opportunities for high-dynamic-range spectroscopies and advancements in attosecond physics and material sciences.
Article
Optics
J. R. Koehler, F. Kottig, D. Schade, P. St J. Russell, F. Tani
Summary: Recombination-driven acoustic pulses and heating transiently alter the refractive index of a photoionized gas, affecting the performance of gas-based laser systems. By probing the refractive index changes in gases confined inside a capillary, the study observes thermal gas-density depressions, indicating potential temperature exceeding 1000 K. Strategies to mitigate these effects and improve system stability at high repetition rates are explored.
Article
Optics
Paul Roth, Michael H. Frosz, Linda Weise, Philip St J. Russell, Gordon K. L. Wong
Summary: The observation of cross-phase modulational instability (XPMI) of circularly polarized helical Bloch modes in a twisted photonic crystal fiber with N-fold rotational symmetry is reported for the first time. By pumping the fiber with a superposition of left-circular polarization (LCP) and right-circular polarization (RCP) modes, orthogonal circularly polarized sidebands with opposite topological charge are generated. This unique phenomenon highlights the importance of chiral structures in modulational instability processes.
Article
Optics
Vanessa Wachter, Victor A. S. V. Bittencourt, Shangran Xie, Sanchar Sharma, Nicolas Joly, Philip St J. Russell, Florian Marquardt, Silvia Viola Kusminskiy
Summary: A platform combining cavity optomagnonics and levitated optomechanics is proposed to control and probe the coupled spin-mechanics of magnetic dielectric particles. The dynamics of a levitated Faraday-active dielectric microsphere driven by an external laser in an external magnetic field is theoretically studied. The magnetization and angular motion dynamics can be probed via the power spectrum of the outgoing light, revealing characteristic frequencies attributed to the angular oscillations and spin dynamics.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Optics
Y. Chen, J. Hammer, N. Y. Joly, P. St J. Russell
Summary: The study presents a design for efficiently generating entangled photon triplets by adjusting gas pressure, axial strain, and mechanical twist. The nanostrand of glass with two hollow channels enhances the nonlinear overlap between the fundamental and third harmonic modal fields.
Article
Optics
Maria N. Romodina, Shangran Xie, Francesco Tani, Philip St J. Russell
Summary: The research on accelerating dielectric microparticles in a photonic crystal fiber with femtosecond pulses shows that, under the influence of material ablation-induced plasma and jet, the particles can be propelled with high acceleration. This effect enables the creation of optical devices at specific locations inside hollow-core photonic crystal fibers.
Article
Optics
Dung-Han Yeh, Wenbin He, Meng Pang, Xin Jiang, Philip St J. Russell
Summary: The study explores the synchronization of mechanical oscillators by optical forces and reports stable long-term synchronization of core vibrations in three different photonic crystal fibers in a high harmonic opto-acoustically mode-locked fiber laser.
Article
Optics
Xinglin Zeng, Wenbin He, Michael H. Frosz, Andreas Geilen, Paul Roth, Gordon K. L. Wong, Philip St J. Russell, Birgit Stiller
Summary: This study reports the experimental investigation of stimulated Brillouin scattering (SBS) in chiral photonic crystal fiber (PCF). The chiral PCF exhibits optical activity and robustly maintains circular polarization states, providing potential for the development of a new generation of stable circularly polarized SBS systems.
PHOTONICS RESEARCH
(2022)
Article
Multidisciplinary Sciences
R. Tyumenev, J. Hammer, N. Y. Joly, P. St J. Russell, D. Novoa
Summary: Preservation of photon statistics is crucial for the implementation of quantum networks. Current methods have limited tunability and suffer from insertion loss and Raman noise. This study introduces a method using hydrogen-filled antiresonant-reflecting photonic crystal fibers for quantum-correlation-preserving frequency conversion.
Correction
Optics
P. Roth, Y. Chen, M. C. Gunendi, R. Beravat, N. N. Edavalath, M. H. Frosz, G. Ahmed, G. K. L. Wong, P. St. J. Russell
Summary: Recent work has identified an error in the dispersion relation of helical Bloch modes in a ring of capillaries. The error has been corrected, and a revised version of Fig. 2 is provided.
Article
Optics
Jie Luan, Philip St. J. Russell, David Novoa
Summary: We successfully achieved self-compression of near-UV pulses using numerical modeling of nonlinear pulse dynamics in the fiber. The experimental results demonstrate the significance of this technique for time-resolved studies in spectroscopy, chemistry, and materials science.
PHOTONICS RESEARCH
(2022)
Article
Multidisciplinary Sciences
Xinglin Zeng, Philip St J. Russell, Christian Wolff, Michael H. Frosz, Gordon K. L. Wong, Birgit Stiller
Summary: This study reports a light-driven nonreciprocal isolation system for optical vortex modes based on topology-selective stimulated Brillouin scattering (SBS) in chiral photonic crystal fiber. The experimental results show a vortex isolation of 22 decibels (dB), which is at the state of the art in fundamental mode isolators using SBS. This device may find applications in optical communications, fiber lasers, quantum information processing, and optical tweezers.
Article
Optics
Philip St. J. Russell, Yang Chen
Summary: This paper investigates the localization of light in disordered or periodically structured dielectric media, with a focus on coreless photonic crystal fiber (PCF) drawn in a chiral form. A novel analytical model for twisted coreless PCF is presented, which offers excellent agreement with numerical solutions of Maxwell's equations and significantly reduces computational time. The study reveals the existence of exponentially localized helical Bloch modes (HBMs) in chiral coupled sub-core lattices, opening up new possibilities for 2D localization of light.
LASER & PHOTONICS REVIEWS
(2023)
Article
Physics, Applied
Francesco Tani, Jacob Lampen, Martin Butryn, Michael H. Frosz, Jie Jiang, Martin E. Fermann, Philip St. J. Russell
Summary: We integrate soliton dynamics in gas-filled hollow-core photonic crystal fibers with a cutting-edge fiber laser to create a turnkey system that can generate few-femtosecond pulses at an 8-MHz repetition rate, even at low pump energies. By utilizing soliton self-frequency shift in a second hydrogen-filled hollow-core fiber, we are able to efficiently produce pulses as short as 22 fs, continuously tunable from 1100 to 1474 nm.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Multidisciplinary
L. Genovese, M. Kellermeier, F. Mayet, K. Floettmann, G. K. L. Wong, M. H. Frosz, R. Assmann, P. St. J. Russell, F. Lemery
Summary: Emerging accelerator concepts are using high-frequency electromagnetic radiation to manipulate electron beams, which supports a variety of advanced applications. In this study, we propose a scheme using laser-driven large-core antiresonant optical fibers to manipulate the electron beams. We explore two general cases using different modes and demonstrate the potential for large energy modulations and the production of attosecond microbunches. These findings have wide applicability in high-charge pump-probe experiments, metrology, and accelerator science.
PHYSICAL REVIEW RESEARCH
(2023)
