{"title":"Ultra-Low Loss D-Type Photonic Crystal Fiber Sensor Based on Surface Plasmon Resonance","authors":"Shimin Zhu, Xinyu Wang","doi":"10.1007/s11468-024-02376-4","DOIUrl":null,"url":null,"abstract":"<p>A D-type photonic crystal fiber (PCF) sensor with ultra-low loss is presented in this paper. The sensor is capable of detecting analytes in the refractive index (RI) range of 1.36 to 1.42. When the RI of the analyte is 1.36, the maximum loss of the sensor in the x-polarized direction is only 23.25 dB/m. A maximum wavelength sensitivity of 8000 nm/RIU is obtained as the analyte has a RI of 1.42, and the sensor has an average wavelength sensitivity of 4678 nm/RIU in the x-polarization direction. The design of the sensor is implemented by coating the side-polished surface of the PCF with a gold film. For the high-sensitivity sensor, the deposition of gold can provide excellent optical performance while maintaining an ultra-low loss. In general, the designed D-type PCF sensor based on side-polished flat gold layer has great potential in various sensing applications due to its ultra-low loss, high sensitivity, and stable properties.</p>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasmonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s11468-024-02376-4","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A D-type photonic crystal fiber (PCF) sensor with ultra-low loss is presented in this paper. The sensor is capable of detecting analytes in the refractive index (RI) range of 1.36 to 1.42. When the RI of the analyte is 1.36, the maximum loss of the sensor in the x-polarized direction is only 23.25 dB/m. A maximum wavelength sensitivity of 8000 nm/RIU is obtained as the analyte has a RI of 1.42, and the sensor has an average wavelength sensitivity of 4678 nm/RIU in the x-polarization direction. The design of the sensor is implemented by coating the side-polished surface of the PCF with a gold film. For the high-sensitivity sensor, the deposition of gold can provide excellent optical performance while maintaining an ultra-low loss. In general, the designed D-type PCF sensor based on side-polished flat gold layer has great potential in various sensing applications due to its ultra-low loss, high sensitivity, and stable properties.
期刊介绍：
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
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