光学微瓶腔特性及温度传感应用研究  

Characteristics and Temperature Sensing Application of Optical Microbottle Resonators

作　　者：肖中威 柴明钢[1] 王梦宇 谢成峰 郭状 张磊 吴涛[1] 伏燕军[1] XIAO Zhongwei;CHAI Minggang;WANG Mengyu;XIE Chengfeng;GUO Zhuang;ZHANG Lei;WU Tao;FU Yanjun(Key Laboratory of Optoelectronic Information Science and Technology,Nanchang Hangkong University,Nanchang 330063,China;Department of Precision Machinery and Precision Instrumentation,University of Science and Technology,Hefei 230026,China)

机构地区：[1]南昌航空大学江西省光电信息科学与技术重点实验室,南昌330063 [2]中国科学技术大学精密机械与精密仪器系,合肥230026

出　　处：《光子学报》2023年第2期82-91,共10页Acta Photonica Sinica

基　　金：国家自然科学基金(Nos.51865040,41871229,42175130,62101230);江西省自然科学基金(Nos.20202BABL212011,20202BABL211010,20202BABL212013,20203BBG73039);江西省教育厅基金(No.GJJ190508)。

摘　　要：设计并测试了两种基于微瓶腔结构的温度传感系统。分别基于电弧放电法和自主装法制备了氧化硅材料(SiO2)和紫外光固化胶(UCA)聚合物材料微瓶腔,通过锥形光纤耦合的方式分析了两种微瓶腔基本特性,并测试它们在温度传感中的应用。实验结果表明,SiO2微瓶腔在温度上升时的灵敏度为11.13 pm/℃,在温度下降时的灵敏度为10.25 pm/℃;UCA微瓶腔在温度上升时的灵敏度为111.89 pm/℃,在温度下降时的温度灵敏度为102.02 pm/℃。两者在上升和下降时均保持很好的一致性,尤其UCA微瓶腔温度灵敏度比SiO2微瓶腔提升了10倍。本文传感器具有体积小、价格低、可塑性和重复性好、灵敏度高等优势,在温度传感领域具有潜在应用。Optical resonators can limit light into a tiny space,enhancing the interaction between optics and materials.Optical microcavities supporting Whispering Gallery Modes(WGMs)have their advantages with miniaturization and easy integration.The WGMs in optical microcavities achieve optical confinement along the microcavities substance based on the principle of light total internal reflection,which can significantly strengthen light-matter interactions and increase quality factors.These advantages make them have great potential for high-sensitivity sensing applications.WGM optical microcavities have been prepared with various shapes,such as spheres,bottles,disks,rings,cylinders,hemispheres,and so on.In addition,optical microcavities have been also prepared with a variety of materials such as crystals,semiconductors,polymers and glass.Among them,polymer material has the advantages of being flexible,easy to process,and plasticity.It can be easy to be integrated on the optical fiber using the surface tension of the material to install natural formation.In addition,the polymer microbottle resonator is very well integrated.The result makes it possible for packaging the polymer microbottle resonator into a highly stable structure.In this paper,optical microbottle resonators prepared by silica material and Ultraviolet-Curable Adhesive(UCA)material are studied.The preparation methods for the two kinds of microbottle resonators are demonstrated.More specifically,silica microbottle resonators were prepared by the arc discharge method,and UCA polymer microbottle resonators were fabricated by the self-assembling technology.For silica microbottle resonators,the coating layer of a single-mode optical fiber was peeled off firstly and the end of the optical fiber was melted with high voltage discharge so that it formed a microsphere under the action of surface tension.Then,another optical fiber was moved close to the microsphere,and a microbottle resonator could be formed after multiple discharges around the area between the microspher

关 键 词：光学微腔 传感器 温度 回音壁模式 

分 类 号：TN252[电子电信—物理电子学]