Physics and Astronomy, Condensed Matter Physics, Electronic, Optical and Magnetic Materials
74
Scopus Publications
1605
Scholar Citations
18
Scholar h-index
34
Scholar i10-index
Scopus Publications
U-shaped seven-core photonic crystal fiber–based surface plasmon resonance magnetic field sensor Tengfei Xu, Shengli Pu, Siyang Huang, Dongfeng Hong, Ziqi Su, et al. Optics Express, 2026 This paper proposes and experimentally demonstrates a surface plasmon resonance (SPR)–based vector magnetic-field sensor using a U-shaped seven-core photonic crystal fiber (7C-PCF). The device employs a multimode fiber–7C-PCF–multimode fiber (MMF–7C-PCF–MMF) cascaded configuration, in which a gold film on the 7C-PCF forms the SPR-active region and a magnetic fluid serves as the magneto-sensitive medium, enabling magnetic-field-induced modulation of the SPR resonance wavelength. Finite-element simulations show that U-shaped bending enhances evanescent-field interaction at the gold interface, thereby strengthening the SPR response. Experimentally, the sensor achieves wavelength sensitivities of 3180 nm/RIU and 6680 nm/RIU over refractive-index ranges of 1.33–1.37 and 1.37–1.40, respectively. Magnetic-field measurements reveal a pronounced orientation-dependent magnetic field intensity response. In the weak-field regime (0–5 mT), the magnetic field intensity sensitivity reaches 10.3 nm/mT when the bending plane is perpendicular to the field (θ = 90°), but drops to 0.23 nm/mT when the sensor is aligned with the field (θ = 180°). For directional sensing, a maximum angular sensitivity of 0.5 nm/° is obtained within specific angular intervals. These results indicate that the proposed U-shaped 7C-PCF-SPR sensor enables high-sensitivity, direction-resolvable magnetic-field sensing in weak fields, offering a compact, fabrication-feasible platform for fiber-optic vector magnetometry.
High-sensitivity vector magnetic field sensor based on a V-shaped multimode-no-core-multimode fiber structure Yu Ji, Shengli Pu, Weinan Liu, Chencheng Zhang, Jiaqi Fu, et al. Optics Letters, 2024 This work proposes and investigates a bent multimode-no-core-multimode optical fiber structure for vector magnetic field sensing applications. The bent no-core fiber (NCF) serves as the sensing area, and the gold film is deposited on its surface to excite the surface plasmon resonance effect. Due to the strong evanescent field of the unclad and bent NCF, the as-fabricated sensor exhibits a high sensitivity of 5630 nm/RIU in the refractive index range of 1.36–1.39. Magnetic fluid is employed as the magneto-sensitive material for magnetic field sensing, exhibiting a high magnetic field intensity sensitivity of 5.74 nm/mT and a high magnetic field direction sensitivity of 0.22 nm/°. The proposed sensor features a simple structure, low cost, point sensing, and excellent mechanical performance.
Magnetic Field-Induced Phase Transition and Weak Ferromagnetism in Nonsuperconducting Optimally Doped PrBCO Cuprate Mahieddine Lahoubi, Shengli Pu, Weinan Liu, Zhe Yang IEEE Magnetics Letters, 2024 In this letter, we report anomalous magnetic properties in high dc magnetic fields <italic>H</italic> up to 11 and 16 T from 1.35 up to 20 K on PrBa<sub>2</sub>Cu<sub>3</sub>O<sub>6.95</sub> (PrBCO<sub>6.95</sub>) cuprate ceramic. Significant magnetic-field effects are revealed in the derivative of the magnetization <italic>M</italic>(<italic>T</italic>) versus <italic>T</italic> using two sets of values of <italic>H</italic> selected in the range of 2.5–9.5 T. Anomalies are observed at the low-critical point <italic>T</italic><sub>cr</sub> = 4–5 K, in the region of the spin reorientation phase transition temperature <italic>T</italic><sub>2</sub> = 10.5 K, and around the Néel temperature of the antiferromagnetic ordering of the Pr<sup>3+</sup> sublattice <italic>T</italic><sub>N</sub> = 14 K. Using Arrott plot analysis, we identified weak field-induced phase transitions at two critical fields, <italic>H</italic><sub>cr1</sub>(<italic>T</italic>) ∼ 3.3 T and <italic>H</italic><sub>cr2</sub>(<italic>T</italic>) ∼ 7.5 T, whose associated transition lines exhibit an almost temperature-independent behavior in the range 1.35 K-<italic>T</italic><sub>2</sub>, and seem to vanish in the vicinity of <italic>T</italic><sub>N</sub>. When <italic>T</italic> decreases from 20 K, an increase occurs in the derivative of the magnetization <italic>M</italic>(<italic>H</italic>) versus <italic>H</italic> for 0.5 T < <italic>H</italic> < 1 T, as well as in the differential susceptibility <italic>χ</italic><sub>d</sub>(<italic>T</italic>) versus <italic>T</italic> where a shape change occurs when crossing <italic>T</italic><sub>cr</sub>. The spontaneous magnetization <italic>M</italic><sub>S</sub>(<italic>T</italic>), which was deduced by extrapolation to zero-field from the field-linear regime up to 2 T, shows an inverse variation with <italic>T</italic> and a shape change when crossing <italic>T</italic><sub>N</sub> and <italic>T</italic><sub>2</sub>. These features, which are taken as evidence for an additional weak ferromagnetic-like component that survives above <italic>T</italic><sub>N</sub>, result from the significant role of the Pr-Cu(2) magnetic coupling.
In-line temperature-compensated vector magnetic field sensor with side-polished fiber Shufei Han, Shengli Pu, Zijian Hao, Chencheng Zhang, Weinan Liu, et al. Optics Letters, 2023 A novel, to the best of our knowledge, vector magnetic field sensor with temperature compensation is proposed and investigated. The proposed sensor is realized by side polishing a multi-mode optical fiber and adopting the surface plasmon resonance (SPR) effect. The side-polished surface is coated with a magnetic fluid (MF) and polydimethylsiloxane (PDMS) successively along the fiber axis. The as-fabricated sensor can be used not only for magnetic field strength and direction sensing, but also for temperature detection. The achieved magnetic field intensity sensitivities are 1720 pm/mT (90° direction) and −710 pm/mT (0° direction), and the temperature sensitivity is −2070 pm/°C. On top of its temperature compensation ability, the easy fabrication and very high sensitivity of the proposed sensor are attractive features for vector magnetic field sensing applications.
U-shaped seven-core photonic crystal fiber–based surface plasmon resonance magnetic field sensor T Xu, S Pu, S Huang, D Hong, Z Su, S Zhang, Z Xu, M Lahoubi Optics Express 34 (10), 17872-17885 , 2026 2026
High-performance wearable respiratory sensor based on graphene-oxide-functionalized fiber tip S Huang, S Pu, Y Ji, C Zhang, W Liu, T Xu, S Han, L Shi, Q Wu, ... Sensors and Actuators B: Chemical, 138759 , 2025 2025 Citations: 17
Y-shaped three-channel photonic crystal fiber SPR sensor for simultaneous measurement of magnetic field, temperature, and refractive index T Xu, S Pu, S Huang, C Zhang, W Liu, M Lahoubi Plasmonics, 1-14 , 2025 2025 Citations: 1
Field-induced phase transition, weak ferromagnetism, and metamagnetic transition in the underdoped PrBCO cuprate M Lahoubi, S Pu, W Liu, Z Yang IOP Conference Series: Materials Science and Engineering 1327 (1), 012222 , 2025 2025
Unusual thermal properties of the nonsuperconducting PrBCO cuprates at low temperatures M Lahoubi, S Pu, W Liu, Z Yang IOP Conference Series: Materials Science and Engineering 1327 (1), 012132 , 2025 2025
Three-channel photonic crystal fiber sensor for simultaneous measurement of magnetic field, temperature, and refractive index T Xu, S Pu, S Huang, Y Ji, M Lahoubi, C Zhang, W Liu IEEE Sensors Journal , 2025 2025 Citations: 13
Fiber-optic magnetic field sensor based on curved Terfenol-D rod combined with FBG Z Yang, S Pu, T Xu, W Liu, C Zhang, M Lahoubi IEEE Sensors Journal 25 (4), 6234-6241 , 2025 2025 Citations: 14
Dual-parameter fiber sensor based on Fabry-Pérot cavity cascaded with Terfenol-D rod integrated fiber Bragg grating Y Wan, S Pu, J Wang, Z Yang, X Lin, C Zhang, M Lahoubi, K Qian, Y Xu, ... Optics Communications 564, 130647 , 2024 2024 Citations: 7
High-sensitivity vector magnetic field sensor based on a V-shaped multimode-no-core-multimode fiber structure Y Ji, S Pu, W Liu, C Zhang, J Fu, S Han, S Duan, S Huang, M Lahoubi Optics Letters 49 (10), 2813-2816 , 2024 2024 Citations: 16
HT phase diagrams in the region of the magnetic compensation point of Tb1. 98Y1. 02Fe5O12 and mean field analysis at high temperature M Lahoubi, A Boutaba, S Pu, W Liu, Z Yang Journal of Magnetism and Magnetic Materials 590, 171682 , 2024 2024 Citations: 1
Magnetic Field-Induced Phase Transition and Weak Ferromagnetism in Nonsuperconducting Optimally Doped PrBCO Cuprate M Lahoubi, S Pu, W Liu, Z Yang IEEE Magnetics Letters 15, 1-5 , 2024 2024
In-line temperature-compensated vector magnetic field sensor with side-polished fiber S Han, S Pu, Z Hao, C Zhang, W Liu, S Duan, J Fu, M Wu, P Mi, X Zeng, ... Optics Letters 48 (17), 4504-4507 , 2023 2023 Citations: 36
Étude des propriétés magnétiques à basse température de DyIG et de quelques composés substitués à l’yttrium. Relation avec l’effet magnétodielectrique A Boutaba, M Lahoubi Badji Mokhtar Annaba University, Algeria , 2023 2023
Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators I Zegaar, A Hocini, H Bensalah, A Harhouz, D Khedrouche, M Lahoubi Physica Scripta 98 (5), 055510 , 2023 2023 Citations: 7
Dual-channel-in-one temperature-compensated all-fiber-optic vector magnetic field sensor based on surface plasmon resonance Z Hao, S Pu, M Lahoubi, C Zhang, W Liu Optics Express 31 (3), 4826-4838 , 2023 2023 Citations: 16
Ultrahigh-performance vector magnetic field sensor with wedge-shaped fiber tip based on surface plasmon resonance and magnetic fluid Z Hao, Y Li, S Pu, J Wang, F Chen, M Lahoubi Nanophotonics 11 (15), 3519-3528 , 2022 2022 Citations: 101
Dual-channel temperature-compensated vector magnetic field sensor based on lab-on-a-fiber-tip Z Hao, S Pu, J Wang, W Liu, C Zhang, Y Fan, M Lahoubi Optics express 30 (14), 25208-25218 , 2022 2022 Citations: 36
Magnetically tunable fiber polarization beam splitter D Li, S Pu, Y Li, M Yuan, M Lahoubi Instrumentation Science & Technology 50 (2), 132-145 , 2022 2022 Citations: 10
Optimized magneto-optical isolator design based on cerium-substituted yttrium iron garnet fiber K Saker, M Lahoubi, S Pu Optical and Quantum Electronics 53 (6), 334 , 2021 2021 Citations: 6
Gyrotropy and magnetic fluid dependences of magneto-optical properties in YIG-magnetic photonic crystal fiber K Saker, M Lahoubi, S Pu Journal of Computational Electronics 20 (3), 1326-1331 , 2021 2021 Citations: 11
MOST CITED SCHOLAR PUBLICATIONS
PVP-encapsulated CoFe2O4/rGO composites with controllable electromagnetic wave absorption performance T Zhu, S Chang, YF Song, M Lahoubi, W Wang Chemical Engineering Journal 373, 755-766 , 2019 2019 Citations: 257
PEG-assisted hydrothermal synthesis of CoFe2O4 nanoparticles with enhanced selective adsorption properties for different dyes X Wu, W Wang, F Li, S Khaimanov, N Tsidaeva, M Lahoubi Applied surface science 389, 1003-1011 , 2016 2016 Citations: 163
Highly sensitive magnetic field sensor based on microfiber coupler with magnetic fluid L Luo, S Pu, J Tang, X Zeng, M Lahoubi Applied Physics Letters 106 (19) , 2015 2015 Citations: 137
Vector magnetic field sensor based on U-bent single-mode fiber and magnetic fluid Y Li, S Pu, Z Hao, S Yan, Y Zhang, M Lahoubi Optics Express 29 (4), 5236-5246 , 2021 2021 Citations: 104
Ultrahigh-performance vector magnetic field sensor with wedge-shaped fiber tip based on surface plasmon resonance and magnetic fluid Z Hao, Y Li, S Pu, J Wang, F Chen, M Lahoubi Nanophotonics 11 (15), 3519-3528 , 2022 2022 Citations: 101
Reflective all-fiber magnetic field sensor based on microfiber and magnetic fluid L Luo, S Pu, J Tang, X Zeng, M Lahoubi Optics Express 23 (14), 18133-18142 , 2015 2015 Citations: 78
Double umbrella structure in terbium iron garnet M Lahoubi, M Guillot, A Marchand, F Tcheou, E Roudault IEEE Transactions on Magnetics 20 (5), 1518-1520 , 2003 2003 Citations: 62
Microfiber coupling structures for magnetic field sensing with enhanced sensitivity S Pu, L Mao, T Yao, J Gu, M Lahoubi, X Zeng IEEE Sensors Journal 17 (18), 5857-5861 , 2017 2017 Citations: 51
Magnetic field sensor based on cascaded microfiber coupler with magnetic fluid L Mao, S Pu, D Su, Z Wang, X Zeng, M Lahoubi Journal of Applied Physics 120 (9) , 2016 2016 Citations: 42
In-line temperature-compensated vector magnetic field sensor with side-polished fiber S Han, S Pu, Z Hao, C Zhang, W Liu, S Duan, J Fu, M Wu, P Mi, X Zeng, ... Optics Letters 48 (17), 4504-4507 , 2023 2023 Citations: 36
Dual-channel temperature-compensated vector magnetic field sensor based on lab-on-a-fiber-tip Z Hao, S Pu, J Wang, W Liu, C Zhang, Y Fan, M Lahoubi Optics express 30 (14), 25208-25218 , 2022 2022 Citations: 36
Sensitive magnetic field sensor using 2D magnetic photonic crystal slab waveguide based on BIG/GGG structure R Deghdak, M Bouchemat, M Lahoubi, S Pu, T Bouchemat, H Otmani Journal of Computational Electronics 16 (2), 392-400 , 2017 2017 Citations: 28
Anisotropic magnetic properties of dysprosium iron garnet (DyIG) M Lahoubi, W Younsi, ML Soltani, B Ouladdiaf Journal of Physics: Conference Series 200 (8), 082018 , 2010 2010 Citations: 25
Magneto-optical properties of magnetic photonic crystal fiber of terbium gallium garnet filled with magnetic fluid H Otmani, M Bouchemat, T Bouchemat, M Lahoubi, S Pu, R Deghdak Photonics and Nanostructures-Fundamentals and Applications 22, 24-28 , 2016 2016 Citations: 22
Symmetry analysis of the magnetic structures in TbIG and Tb: YIG at low temperature M Lahoubi Journal of Physics: Conference Series 340 (1), 012068 , 2012 2012 Citations: 22
Magnetic field sensor based on a magnetic-fluid-infiltrated photonic crystal L4 nanocavity and broadband W1 waveguide K Saker, T Bouchemat, M Lahoubi, M Bouchemat, S Pu Journal of Computational Electronics 18 (2), 619-627 , 2019 2019 Citations: 21
Nonreciprocal TE-TM mode conversion based on photonic crystal fibre of air-holes filled with magnetic fluids into a terbium gallium garnet fibre H Otmani, M Bouchemat, T Bouchemat, M Lahoubi, W Wang, S Pu 2015 IEEE International Magnetics Conference (INTERMAG), Beijing, China … , 2015 2015 Citations: 19
Low temperature spin reorientation in dysprosium iron garnet M Lahoubi, W Younsi, ML Soltani, J Voiron, D Schmitt Journal of Physics: Conference Series 150, 042108 , 2009 2009 Citations: 19
High-performance wearable respiratory sensor based on graphene-oxide-functionalized fiber tip S Huang, S Pu, Y Ji, C Zhang, W Liu, T Xu, S Han, L Shi, Q Wu, ... Sensors and Actuators B: Chemical, 138759 , 2025 2025 Citations: 17
Anomalous magnetic reordering in magnetodielectric terbium iron garnet at low temperatures M Lahoubi, B Ouladdiaf Journal of Magnetism and Magnetic Materials 373, 108-114 , 2015 2015 Citations: 17