{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T10:37:29Z","timestamp":1766486249830,"version":"build-2065373602"},"reference-count":61,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,4,17]],"date-time":"2020-04-17T00:00:00Z","timestamp":1587081600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Joint Research Fund in Astronomy under a cooperative agreement between the National Natural Science Foundation of China","award":["U1831117"],"award-info":[{"award-number":["U1831117"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51877015, 51377179, 61301120, 11611130023, 11403054"],"award-info":[{"award-number":["51877015, 51377179, 61301120, 11611130023, 11403054"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001728","name":"Swedish Foundation for International Cooperation in Research and Higher Education","doi-asserted-by":"publisher","award":["CH2015-6360"],"award-info":[{"award-number":["CH2015-6360"]}],"id":[{"id":"10.13039\/501100001728","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["2019CDXYTX0023"],"award-info":[{"award-number":["2019CDXYTX0023"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005230","name":"Natural Science Foundation of Chongqing","doi-asserted-by":"publisher","award":["cstc2018jscx-msyb1002"],"award-info":[{"award-number":["cstc2018jscx-msyb1002"]}],"id":[{"id":"10.13039\/501100005230","id-type":"DOI","asserted-by":"publisher"}]},{"name":"graduate research and innovation foundation of Chongqing","award":["CYS17039"],"award-info":[{"award-number":["CYS17039"]}]},{"name":"China Scholarships Council","award":["201706050024"],"award-info":[{"award-number":["201706050024"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, a reconfigurable sensing platform based on an asymmetrical metal-insulator-metal stacked structure integrating an indium tin oxide (ITO) ultrathin film is proposed and investigated numerically. The epsilon-near-zero (ENZ) mode and antisymmetric mode can be resonantly excited, generating near-perfect absorption of over 99.7% at 1144 and 1404 nm, respectively. The absorptivity for the ENZ mode can be modulated from 90.2% to 98.0% by varying the ENZ wavelength of ITO by applying different voltages. To obtain a highly sensitive biosensor, we show that the proposed structure has a full-width at half-maximum (FWHM) of 8.65 nm and a figure-of-merit (FOM) of 24.7 with a sensitivity of 213.3 nm\/RI (refractive index) for the glucose solution. Our proposed device has potential for developing tunable biosensors for real-time health monitoring.<\/jats:p>","DOI":"10.3390\/s20082301","type":"journal-article","created":{"date-parts":[[2020,4,21]],"date-time":"2020-04-21T04:49:38Z","timestamp":1587444578000},"page":"2301","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["An Electrically Tunable Dual-Wavelength Refractive Index Sensor Based on a Metagrating Structure Integrating Epsilon-Near-Zero Materials"],"prefix":"10.3390","volume":"20","author":[{"given":"Zhenya","family":"Meng","sequence":"first","affiliation":[{"name":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7944-3327","authenticated-orcid":false,"given":"Hailin","family":"Cao","sequence":"additional","affiliation":[{"name":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China"},{"name":"State Key Laboratory of Power Transmission Equipment &amp; System Security and New Technology, Chongqing University, Chongqing 400044, China"}]},{"given":"Run","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China"}]},{"given":"Xiaodong","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3790","DOI":"10.1021\/acs.jpcc.8b11384","article-title":"\u03b5-Near-Zero Materials for Highly Miniaturizable Magnetoplasmonic Sensing Devices","volume":"123","author":"Oliveira","year":"2019","journal-title":"J. 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