{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T15:51:57Z","timestamp":1771689117319,"version":"3.50.1"},"reference-count":25,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2021,9,13]],"date-time":"2021-09-13T00:00:00Z","timestamp":1631491200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003787","name":"Natural Science Foundation of Hebei Province","doi-asserted-by":"publisher","award":["F2018501063"],"award-info":[{"award-number":["F2018501063"]}],"id":[{"id":"10.13039\/501100003787","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Hebei Province Science and Technology Plan Key Research and Development Project Research Funds","award":["18273902D"],"award-info":[{"award-number":["18273902D"]}]},{"name":"the Fundamental Research Funds for the Central Universities Key Scientific Research Guidance Project","award":["N2023005"],"award-info":[{"award-number":["N2023005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, a novel D-shaped photonic crystal fiber sensor for simultaneous measurements of magnetic field and temperature is proposed and characterized. Based on the surface plasmon resonance theory, the D-shaped flat surface coated with a gold layer is in direct contact with magnetic fluid to detect magnetic field, and one of the relatively small air holes near the fiber core is filled with polydimethylsiloxane (PDMS) to sense temperature. The realization of measuring the magnetic field and temperature separately through two channels depends on the fact that the magnetic field only changes the refractive index of the magnetic fluid, but has no effect on the refractive index of PDMS. The refractive index of the magnetic fluid and PDMS can be affected by temperature at the same time. The sensor designed in this work can separate the variations of the magnetic field and temperature simultaneously, therefore solving the cross-sensitivity problem to further improve the magnetic field sensitivity. When the thickness of the gold film is 50 nm and the radius of the filling hole is 0.52 \u00b5m, the magnetic field sensitivity and the temperature sensitivity of magnetic field sensor based on temperature self-reference can reach 0.14274 nm\/Oe and \u22120.229 nm\/\u00b0C, respectively.<\/jats:p>","DOI":"10.3390\/s21186130","type":"journal-article","created":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T03:46:14Z","timestamp":1631591174000},"page":"6130","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["A Magnetic Field SPR Sensor Based on Temperature Self-Reference"],"prefix":"10.3390","volume":"21","author":[{"given":"Xinwei","family":"Mo","sequence":"first","affiliation":[{"name":"College of Information Science and Engineering, Northeastern University, Shenyang 110004, China"}]},{"given":"Jiangtao","family":"Lv","sequence":"additional","affiliation":[{"name":"College of Information Science and Engineering, Northeastern University, Shenyang 110004, China"},{"name":"Institute of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China"}]},{"given":"Qiang","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Information Science and Engineering, Northeastern University, Shenyang 110004, China"},{"name":"Institute of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China"}]},{"given":"Xiaoxiao","family":"Jiang","sequence":"additional","affiliation":[{"name":"College of Information Science and Engineering, Northeastern University, Shenyang 110004, China"},{"name":"Institute of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China"}]},{"given":"Guangyuan","family":"Si","sequence":"additional","affiliation":[{"name":"Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, VIC 3168, Australia"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1146\/annurev.physchem.58.032806.104607","article-title":"Localized surface plasmon resonance spectroscopy and sensing","volume":"58","author":"Willets","year":"2007","journal-title":"Annu. Rev. Phys. Chem."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1016\/j.snb.2016.11.113","article-title":"Photonic crystal fiber based plasmonic sensors","volume":"243","author":"Rifat","year":"2017","journal-title":"Sens. Actuators B"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/j.cplett.2007.08.027","article-title":"Efficient dielectric function for FDTD simulation of the optical properties of silver and gold nanoparticles","volume":"446","author":"Hao","year":"2007","journal-title":"Chem. Phys. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"13980","DOI":"10.1364\/OE.19.013980","article-title":"Comprehensive numerical analysis of a surface-plasmon-resonance sensor based on an H-shaped optical fiber","volume":"19","author":"Erdmanis","year":"2011","journal-title":"Opt. Express"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"3883","DOI":"10.1007\/s00216-014-8411-6","article-title":"Review of plasmonic fiber optic biochemical sensors: Improving the limit of detection","volume":"407","author":"Caucheteur","year":"2015","journal-title":"Anal. Bioanal. Chem."},{"key":"ref_6","first-page":"157","article-title":"Sensing with photonic crystal fibers","volume":"5633","author":"Jin","year":"2005","journal-title":"Proc. Soc. Photo-Opt. Instrum. Eng."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"11207","DOI":"10.1364\/OE.15.011207","article-title":"Liquid-core, liquid-cladding photonic crystal fibers","volume":"15","author":"Cordeiro","year":"2007","journal-title":"Opt. Express"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"5616","DOI":"10.1109\/JLT.2016.2586584","article-title":"Solid optical fiber with tunable bandgaps based on curable polymer infiltrated photonic crystal fiber","volume":"34","author":"Sun","year":"2016","journal-title":"J. Lightwave Technol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1539","DOI":"10.1364\/OL.38.001539","article-title":"All-fiber magnetic field sensors based on magnetic fluid-filled photonic crystal fibers","volume":"38","author":"Gao","year":"2013","journal-title":"Opt. Lett."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1364\/OPTICA.6.000442","article-title":"Quasi-phase-matched high-harmonic generation in gas-filled hollow-core photonic crystal fiber","volume":"6","author":"Wiegandt","year":"2019","journal-title":"Optica"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.yofte.2019.03.013","article-title":"Theoretical analysis of all-solid D-type photonic crystal fiber based plasmonic sensor for refractive index and temperature sensing","volume":"50","author":"Zhao","year":"2019","journal-title":"Opt. Fiber Technol."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"348","DOI":"10.1016\/j.ccr.2018.08.001","article-title":"Recent development of fiber-optic chemical sensors and biosensors: Mechanisms, materials, micro\/nano-fabrications and applications","volume":"376","author":"Yin","year":"2018","journal-title":"Coord. Chem. Rev."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1323","DOI":"10.1007\/s11468-020-01157-z","article-title":"D-shaped photonic crystal fiber-based surface plasmon resonance biosensors with spatially distributed bimetallic layers","volume":"15","author":"Gupta","year":"2020","journal-title":"Plasmonics"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1109\/TIM.2018.2834222","article-title":"Magnetic field sensing based on SPR optical fiber sensor interacting with magnetic fluid","volume":"68","author":"Zhou","year":"2019","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"151101","DOI":"10.1063\/1.4824470","article-title":"Fiber-optic in-line magnetic field sensor based on the magnetic fluid and multimode interference effects","volume":"103","author":"Lin","year":"2013","journal-title":"Appl. Phys. Lett."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"211106","DOI":"10.1063\/1.2392824","article-title":"Magnetic-field-induced birefringence and particle agglomeration in magnetic fluids","volume":"89","author":"Di","year":"2006","journal-title":"Appl. Phys. Lett."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1456","DOI":"10.1364\/OE.377116","article-title":"Magnetic field and temperature dual-parameter sensor based on magnetic fluid materials filled photonic crystal fiber","volume":"28","author":"Wang","year":"2020","journal-title":"Opt. Express"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"8103605","DOI":"10.1109\/LMAG.2019.2915289","article-title":"Compact magnetic field sensor based on a magnetic-fluid-integrated fiber interferometer","volume":"10","author":"Wu","year":"2019","journal-title":"IEEE Magn. Lett."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"4079","DOI":"10.1109\/JSEN.2019.2899672","article-title":"Mach-Zehnder interferometer cascaded with FBG for simultaneous measurement of magnetic field and temperature","volume":"19","author":"Zhang","year":"2019","journal-title":"IEEE Sens. J."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"4369","DOI":"10.1364\/AO.56.004369","article-title":"Simultaneous measurement of refractive index and temperature based on SPR in D-shaped MOF","volume":"56","author":"Yang","year":"2017","journal-title":"Appl. Opt."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1016\/j.optlastec.2018.05.041","article-title":"Magnetic field and temperature sensor based on D-shaped fiber modal interferometer and magnetic fluid","volume":"107","author":"Dong","year":"2018","journal-title":"Opt. Laser Technol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/j.optcom.2016.05.039","article-title":"Sensitivity-enhanced temperature sensor based on PDMS-coated long period fiber grating","volume":"377","author":"Wang","year":"2016","journal-title":"Opt. Commun."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1364\/PRJ.5.000103","article-title":"High sensitivity D-shaped hole fiber temperature sensor based on surface plasmon resonance with liquid filling","volume":"5","author":"Weng","year":"2017","journal-title":"Photonics Res."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Alberto, N., Domingues, M.F., Marques, C., Andre, P., and Antunes, P. (2018). Optical fiber magnetic field sensors based on magnetic fluid: A review. Sensors, 18.","DOI":"10.3390\/s18124325"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"3481","DOI":"10.1063\/1.1576292","article-title":"Thermal effect on the field-dependent refractive index of the magnetic fluid film","volume":"82","author":"Chen","year":"2003","journal-title":"Appl. Phys. Lett."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/18\/6130\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:01:40Z","timestamp":1760166100000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/18\/6130"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,9,13]]},"references-count":25,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2021,9]]}},"alternative-id":["s21186130"],"URL":"https:\/\/doi.org\/10.3390\/s21186130","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,9,13]]}}}