{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T14:55:57Z","timestamp":1787496957598,"version":"build-2736575974"},"reference-count":46,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,7,25]],"date-time":"2024-07-25T00:00:00Z","timestamp":1721865600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62061051"],"award-info":[{"award-number":["62061051"]}]},{"name":"National Natural Science Foundation of China","award":["202301AT070249"],"award-info":[{"award-number":["202301AT070249"]}]},{"name":"National Natural Science Foundation of China","award":["202101AT070187"],"award-info":[{"award-number":["202101AT070187"]}]},{"name":"Yunnan Fundamental Research Projects","award":["62061051"],"award-info":[{"award-number":["62061051"]}]},{"name":"Yunnan Fundamental Research Projects","award":["202301AT070249"],"award-info":[{"award-number":["202301AT070249"]}]},{"name":"Yunnan Fundamental Research Projects","award":["202101AT070187"],"award-info":[{"award-number":["202101AT070187"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This study proposes a dual-functional terahertz device based on the Dirac semimetal, serving as both a sensing element and a band-pass filter. The device\u2019s operating mode can switch between these two functions by utilizing the phase transition property of vanadium dioxide (VO2). When VO2 is in the insulating state, the device functions as a sensing element. The simulation results demonstrate an impressive refractive index sensitivity of 374.40 GHz\/RIU (Refractive Index Unit). When VO2 is in the metallic state, the device functions as a band-pass filter, exhibiting a center frequency of 2.01 THz and a 3 dB fractional bandwidth of 0.91 THz. The integration of these dual functionalities within a single terahertz device enhances its utility in both sensing and filtering applications.<\/jats:p>","DOI":"10.3390\/s24154823","type":"journal-article","created":{"date-parts":[[2024,7,25]],"date-time":"2024-07-25T08:40:04Z","timestamp":1721896804000},"page":"4823","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Design and Numerical Modeling of Terahertz Metasurface with Dual Functions of Sensing and Filtering"],"prefix":"10.3390","volume":"24","author":[{"given":"Lu","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huayan","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3388-0446","authenticated-orcid":false,"given":"Zhe","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Runfeng","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinxiao","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weilin","family":"Li","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Yunnan University, Kunming 650000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1038\/nphoton.2007.3","article-title":"Cutting-edge terahertz technology","volume":"1","author":"Tonouchi","year":"2007","journal-title":"Nat. Photonics"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"717","DOI":"10.1038\/nphoton.2015.176","article-title":"Frequency-division multiplexing in the terahertz range using a leaky-wave antenna","volume":"9","author":"Karl","year":"2015","journal-title":"Nat. Photonics"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"20160282","DOI":"10.1587\/elex.13.20160282","article-title":"220 GHz outdoor wireless communication system based on a Schottky-diode transceiver","volume":"13","author":"Chen","year":"2016","journal-title":"IEICE Electron. Expr."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Valu\u0161is, G., Lisauskas, A., Yuan, H., Knap, W., and Roskos, H. (2021). Roadmap of terahertz imaging 2021. Sens. Elem., 21.","DOI":"10.3390\/s21124092"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1117","DOI":"10.1021\/acsphotonics.2c00228","article-title":"Perspective on terahertz applications in bioscience and biotechnology","volume":"9","author":"Markelz","year":"2022","journal-title":"ACS Photonics"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"704","DOI":"10.1109\/TDEI.2023.3330838","article-title":"Terahertz detection of interface defects within composite insulators using a gated recurrent neural network","volume":"31","author":"Li","year":"2023","journal-title":"IEEE Trans. Dielectr. Electr. Insul."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"509","DOI":"10.1070\/PU1968v010n04ABEH003699","article-title":"The electrodynamics of substances with simultaneously negative values of and \u03bc","volume":"10","author":"Veselago","year":"1968","journal-title":"Sov. Phys. Uspekhi"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"788","DOI":"10.1126\/science.1096796","article-title":"Metamaterials and negative refractive index","volume":"305","author":"Smith","year":"2004","journal-title":"Science"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"148","DOI":"10.37188\/lam.2021.010","article-title":"Metasurfaces for manipulating terahertz waves","volume":"2","author":"Zang","year":"2021","journal-title":"Light Adv. Manuf."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"2219","DOI":"10.1515\/nanoph-2022-0030","article-title":"Recent progress in metasurface-enabled optical waveplates","volume":"11","author":"Deng","year":"2022","journal-title":"Nanophotonics"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"7544","DOI":"10.1038\/s41598-024-58297-z","article-title":"All-dielectric polarization-sensitive metasurface for terahertz polarimetric imaging","volume":"14","author":"Baek","year":"2024","journal-title":"Sci. Rep."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"eabe4553","DOI":"10.1126\/sciadv.abe4553","article-title":"Wearable plasmonic-metasurface sensing element for noninvasive and universal molecular fingerprint detection on biointerfaces","volume":"7","author":"Wang","year":"2021","journal-title":"Sci. Adv."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"11598","DOI":"10.1021\/acsnano.2c03310","article-title":"Metasurface micro\/nano-optical sensing elements: Principles and applications","volume":"16","author":"Qin","year":"2022","journal-title":"ACS Nano"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Lin, S.J., Liu, W.T., Hou, X.H., Peng, Z.Y., Chen, Z.C., and Hu, F.R. (2023). Specific detection of n-propanol gas via terahertz metasurface sensing element modified by molecularly imprinted polymer. Spectrochim. Acta Part. A Mol. Biomol. Spectrosc., 292.","DOI":"10.1016\/j.saa.2023.122413"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"46471","DOI":"10.1364\/OE.478457","article-title":"Dirac semimetal and an all dielectric based tunable ultrasensitive terahertz sensing element with multiple bound states in the continuum","volume":"30","author":"Liu","year":"2022","journal-title":"Opt. Express"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"109367","DOI":"10.1016\/j.diamond.2022.109367","article-title":"Detection of cancer with graphene metasurface-based highly efficient sensing elements","volume":"129","author":"Patel","year":"2022","journal-title":"Diam. Relat. Mater."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2041","DOI":"10.1007\/s11468-023-01912-y","article-title":"Implementing the dual functions of switchable broadband absorption and sensitive sensing in a VO2-based metasurface","volume":"18","author":"Zhao","year":"2023","journal-title":"Plasmonics"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"235417","DOI":"10.1103\/PhysRevB.93.235417","article-title":"Dielectric response and novel electromagnetic modes in three-dimensional Dirac semimetal films","volume":"93","author":"Kotov","year":"2016","journal-title":"Phys. Rev. B"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"17374","DOI":"10.1039\/D1CP01375K","article-title":"Three-band perfect absorber with high refractive index sensing based on an active tunable Dirac semimetal","volume":"23","author":"Li","year":"2021","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"32583","DOI":"10.1039\/D2RA05402G","article-title":"Tunable high-sensitivity sensing detector based on Bulk Dirac semimetal","volume":"12","author":"Wang","year":"2022","journal-title":"RSC Adv."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"109537","DOI":"10.1016\/j.optlastec.2023.109537","article-title":"Enhanced quasi-BIC refractive index sensing based on controlling the Fermi energy of Dirac semimetal metasurface","volume":"164","author":"Hou","year":"2023","journal-title":"Opt. Laser Technol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1518","DOI":"10.1126\/science.1176580","article-title":"Memory Metamaterials","volume":"325","author":"Driscoll","year":"2009","journal-title":"Science"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"17434","DOI":"10.1364\/OE.394784","article-title":"Tunable bifunctional terahertz metamaterial device based on Dirac semimetals and vanadium dioxide","volume":"28","author":"Wang","year":"2020","journal-title":"Opt. Express"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"106682","DOI":"10.1016\/j.mssp.2022.106682","article-title":"Multifunctional terahertz metasurface utilizing Dirac semi-metal and vanadium dioxide hybrid metamaterials","volume":"146","author":"Yi","year":"2022","journal-title":"Mat. Sci. Semicon. Proc."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1364\/AO.478846","article-title":"Multifunctional terahertz absorber based on the Dirac semimetal and vanadium dioxide","volume":"62","author":"Zhang","year":"2023","journal-title":"Appl. Opt."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1007\/s11082-020-02268-x","article-title":"Terahertz band pass filter design using multilayer metamaterials","volume":"52","author":"Asl","year":"2020","journal-title":"Opt. Quant. Electron."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"2101544","DOI":"10.1002\/adom.202101544","article-title":"Electromechanically tunable frequency-agile metamaterial bandpass filters for terahertz waves","volume":"10","author":"Pitchappa","year":"2022","journal-title":"Adv. Opt. Mater."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1364\/OE.477525","article-title":"Electrically tunable graphene-based multi-band terahertz metamaterial filters","volume":"31","author":"Wu","year":"2023","journal-title":"Opt. Express"},{"key":"ref_29","first-page":"0223001","article-title":"A terahertz filter\/sensing element design based on vanadium dioxide and Dirac semimetals","volume":"44","author":"Zhang","year":"2024","journal-title":"Acta Opt. Sin."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"30289","DOI":"10.1364\/OE.403631","article-title":"Tunable broadband terahertz absorber based on a single-layer graphene metasurface","volume":"28","author":"Han","year":"2020","journal-title":"Opt. Express"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Zhang, J., Tao, S., Yan, X., Zhang, X., Guo, J., and Wen, Z. (2021). Dual-frequency polarized reconfigurable terahertz antenna based on graphene metasurface and TOPAS. Micromachines, 12.","DOI":"10.3390\/mi12091088"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"043505","DOI":"10.1063\/1.3549120","article-title":"Broadband terahertz characterization of the refractive index and absorption of some important polymeric and organic electro-optic materials","volume":"109","author":"Cunningham","year":"2011","journal-title":"J. Appl. Phys."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"708","DOI":"10.1007\/s11082-022-04122-8","article-title":"A tunable multi-band absorber based on graphene metasurface in terahertz band","volume":"54","author":"Bordbar","year":"2022","journal-title":"Opt. Quantum Electron."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"85","DOI":"10.2528\/PIER23031001","article-title":"Terahertz plasmonic metagrating design simultaneously enabling broadband extraordinary transmission and field enhancement","volume":"177","author":"Wang","year":"2023","journal-title":"Prog. Electromagn. Res."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"55","DOI":"10.2528\/PIER22020308","article-title":"A Review of Multifunctional Optical Gap-Surface Plasmon Metasurfaces","volume":"174","author":"Ding","year":"2022","journal-title":"Prog. Electromagn. Res."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"105","DOI":"10.2528\/PIER22060501","article-title":"Miniaturized Photonic and Microwave Integrated Circuits Based on Surface Plasmon Polaritons","volume":"175","author":"He","year":"2022","journal-title":"Prog. Electromagn. Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"93","DOI":"10.2528\/PIER22011301","article-title":"Spoof surface plasmons arising from corrugated metal surface to structural dispersion waveguide","volume":"173","author":"Liu","year":"2022","journal-title":"Prog. Electromagn. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"4326","DOI":"10.1038\/s41598-017-04692-8","article-title":"Hybrid resonators and highly tunable terahertz metamaterials enabled by vanadium dioxide (VO2)","volume":"7","author":"Wang","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"617","DOI":"10.1016\/j.carbon.2020.12.001","article-title":"Terahertz absorption modulator with largely tunable bandwidth and intensity","volume":"174","author":"Liu","year":"2021","journal-title":"Carbon"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Wen, C., Feng, L., Li, Z., Bai, J., Wang, S., Gao, X., Wang, J., and Yao, W. (2024). A review of the preparation, properties and applications of VO2 thin films with the reversible phase transition. Front. Mater., 11.","DOI":"10.3389\/fmats.2024.1341518"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"151","DOI":"10.2528\/PIER22022405","article-title":"Millimeter-wave wideband high efficiency circular Airy OAM multibeams with multiplexing OAM modes based on transmission metasurfaces","volume":"173","author":"Huang","year":"2022","journal-title":"Prog. Electromagn. Res."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"31","DOI":"10.2528\/PIER23012902","article-title":"Highly Sensitive Temperature Sensing via Photonic Spin Hall Effect","volume":"177","author":"Yuan","year":"2023","journal-title":"Prog. Electromagn. Res."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s10762-017-0448-0","article-title":"Thin-film sensing via fano resonance excitation in symmetric terahertz metamaterials","volume":"39","year":"2018","journal-title":"J. Infrared Milli. Terahz. Waves"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"1405","DOI":"10.1007\/s11468-021-01417-6","article-title":"Switchable Fano Resonance Based on Cut-Induced Asymmetric Split-Ring Resonators with Dirac Semimetal Film","volume":"16","author":"Tu","year":"2021","journal-title":"Plasmonics"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"390","DOI":"10.1007\/s11082-023-04670-7","article-title":"Terahertz Plasmonic Sensing element based on bulk Dirac Semimetals","volume":"55","author":"Zhuang","year":"2023","journal-title":"Opt. Quant. Electron."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1239","DOI":"10.1109\/TAP.2007.895567","article-title":"A frequency selective surface with miniaturized elements","volume":"55","author":"Sarabandi","year":"2007","journal-title":"IEEE Trans. Antennas Propag."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/15\/4823\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:23:07Z","timestamp":1760109787000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/15\/4823"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,7,25]]},"references-count":46,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2024,8]]}},"alternative-id":["s24154823"],"URL":"https:\/\/doi.org\/10.3390\/s24154823","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,7,25]]}}}