{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T21:06:20Z","timestamp":1768683980530,"version":"3.49.0"},"reference-count":26,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T00:00:00Z","timestamp":1554854400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Nature Science Foundation of China","award":["61377084, 41174161, and 11704086"],"award-info":[{"award-number":["61377084, 41174161, and 11704086"]}]},{"name":"Joint Research Fund in Astronomy","award":["U1831115, U1631239"],"award-info":[{"award-number":["U1831115, U1631239"]}]},{"name":"Opening Project of Key Laboratory of Astronomical Optics &amp; Technology, Nanjing Institute of Astronomical Optics &amp; Technology, Chinese Academy of Sciences","award":["CAS-KLAOT-KF201501, CAS-KLAOT-KF201605"],"award-info":[{"award-number":["CAS-KLAOT-KF201501, CAS-KLAOT-KF201605"]}]},{"DOI":"10.13039\/501100004750","name":"Aeronautical Science Foundation of China","doi-asserted-by":"publisher","award":["201608P6003"],"award-info":[{"award-number":["201608P6003"]}],"id":[{"id":"10.13039\/501100004750","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Fundamental Research Funds for Harbin Engineering University of China","award":["GK2110260194"],"award-info":[{"award-number":["GK2110260194"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We have proposed a novel tapered-single mode-no core-single mode (TSNS) fiber refractometer based on multimode interference. The TSNS structure exhibits a high contrast ratio (&gt;15 dB) and a uniform interference fringe. The influence of different lengths and diameters of the TSNS on the refractive index unit (RIU) sensitivity was investigated. The experimental investigations indicated a maximum sensitivity of 1517.28 nm\/RIU for a refractive index of 1.417 and low-temperature sensitivity (&lt;10 pm\/\u00b0C). The experimental and simulation results are also in good agreement.<\/jats:p>","DOI":"10.3390\/s19071722","type":"journal-article","created":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T11:25:08Z","timestamp":1554895508000},"page":"1722","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["High Sensitivity Refractometer Based on a Tapered-Single Mode-No Core-Single Mode Fiber Structure"],"prefix":"10.3390","volume":"19","author":[{"given":"Wenlei","family":"Yang","sequence":"first","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuo","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Geng","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Le","family":"Li","sequence":"additional","affiliation":[{"name":"Centre for Composite Materials and Structures, Key Laboratory of Science and Technology for National Defence, Harbin Institute of Technology (HIT), Harbin 150080, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guoan","family":"Li","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yijia","family":"Gong","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kai","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chengguo","family":"Tong","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunlian","family":"Lu","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1754-1236","authenticated-orcid":false,"given":"Weimin","family":"Sun","sequence":"additional","affiliation":[{"name":"Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Libo","family":"Yuan","sequence":"additional","affiliation":[{"name":"School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,4,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"11209","DOI":"10.1364\/OE.21.011209","article-title":"Tapered fiber Mach-Zehnder interferometers for vibration and elasticity sensing applications","volume":"21","author":"Chen","year":"2013","journal-title":"Opt. 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