Polymer microbottle with flexible tunability for ultrasensitive ultrasound sensing

作     者：Liaosha Kuang Jialve Sun Shengnan Huangfu Tinglan Chen Zijing Cai Tian Xu Xuanyi Zhang Bo Ni Fangxing Zhang 

作者机构：School of Physics and TechnologyNantong UniversityNantong226019China Peking University Yangtze Delta Institute of OptoelectronicsNantong226010China State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronicsSchool of PhysicsPeking UniversityBeijing100871China School of Electronic Information EngineeringShanghai DianJi UniversityShanghai201306China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学:物理学、力学、天文学(英文版))

年 卷 期：2025年第68卷第3期

页      面：124-130页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 080203[工学-机械设计及理论] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.62305006,and 61701261) the Natural Science Foundation of Jiangsu Province(Grant Nos.BK20230287,BK20230286,and BK20160417) Nantong Social Livelihood Science and Technology Planning Project(Grant Nos.MS12022003,and MS2023071) 

主　　题：microbottle broad tuning range ultrasound detection photoacoustic imaging 

摘      要：Optical whispering-gallery-mode microcavities have attracted significant attention for their potential in ultrasensitive ultrasound sensing,despite always relying on expensive tunable lasers in *** this study,we integrated an electrothermal tuning function inside the microcavity,enabling fast scanning of modes by applying voltages,which helps provide real-time searching and tracking of the optimal *** device demonstrated a quality factor exceeding 10^(6)with a broad tuning range over 33 *** structure achieved high sensitivity in ultrasound detection,with a noise equivalent pressure(NEP)of 3.35 m Pa/Hz^(1/2)at 20 *** further reported the advantages of the mode thermal broadening effect for ultrasound detection,with successfully obtaining high-contrast photoacoustic *** research introduces an innovative approach for cost-effective,high-stability ultrasound detection with microcavity,showing great value for application in photoacoustic imaging.