{"title":"基于胆甾型液晶激光发射的高灵敏度微型光纤温度探头。","authors":"Dong Zhou, Ziqi Zhou, Xu Li, Lishuang Yao, Wenzhu Cao, Yongjun Liu","doi":"10.1364/OL.555545","DOIUrl":null,"url":null,"abstract":"<p><p>This paper presents a method for cholesteric liquid crystal (CLC)-filled miniature optical fiber liquid crystal probes to achieve highly sensitive temperature detection. Due to the periodic structure of CLC, it can function as a resonant microcavity and generate laser light under the gain of the dye, with the laser wavelength shifting with temperature. The temperature response characteristics of several CLCs were studied by observing the variation of CLC laser wavelength with temperature. In order to further improve temperature sensitivity, this paper used a method of linear superimposing the sensitivity of two liquid crystals. Finally, the sensitivity of the fiber-optic temperature sensing probe produced in this paper reached 7.41 nm/°C. This high sensitivity was achieved by linearly combining the temperature sensitivities of CLC2 (2.77 nm/°C) and CLC4 (-4.64 nm/°C).</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 7","pages":"2437-2440"},"PeriodicalIF":3.1000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-sensitivity miniature fiber-optic temperature probe based on cholesteric liquid crystal laser emission.\",\"authors\":\"Dong Zhou, Ziqi Zhou, Xu Li, Lishuang Yao, Wenzhu Cao, Yongjun Liu\",\"doi\":\"10.1364/OL.555545\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>This paper presents a method for cholesteric liquid crystal (CLC)-filled miniature optical fiber liquid crystal probes to achieve highly sensitive temperature detection. Due to the periodic structure of CLC, it can function as a resonant microcavity and generate laser light under the gain of the dye, with the laser wavelength shifting with temperature. The temperature response characteristics of several CLCs were studied by observing the variation of CLC laser wavelength with temperature. In order to further improve temperature sensitivity, this paper used a method of linear superimposing the sensitivity of two liquid crystals. Finally, the sensitivity of the fiber-optic temperature sensing probe produced in this paper reached 7.41 nm/°C. This high sensitivity was achieved by linearly combining the temperature sensitivities of CLC2 (2.77 nm/°C) and CLC4 (-4.64 nm/°C).</p>\",\"PeriodicalId\":19540,\"journal\":{\"name\":\"Optics letters\",\"volume\":\"50 7\",\"pages\":\"2437-2440\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2025-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OL.555545\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.555545","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
High-sensitivity miniature fiber-optic temperature probe based on cholesteric liquid crystal laser emission.
This paper presents a method for cholesteric liquid crystal (CLC)-filled miniature optical fiber liquid crystal probes to achieve highly sensitive temperature detection. Due to the periodic structure of CLC, it can function as a resonant microcavity and generate laser light under the gain of the dye, with the laser wavelength shifting with temperature. The temperature response characteristics of several CLCs were studied by observing the variation of CLC laser wavelength with temperature. In order to further improve temperature sensitivity, this paper used a method of linear superimposing the sensitivity of two liquid crystals. Finally, the sensitivity of the fiber-optic temperature sensing probe produced in this paper reached 7.41 nm/°C. This high sensitivity was achieved by linearly combining the temperature sensitivities of CLC2 (2.77 nm/°C) and CLC4 (-4.64 nm/°C).
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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