Whispering gallery mode(WGM)resonators have been widely researched for their high-sensitivity sensing capability,but there is currently a lack of high-sensitivity real-time sensing methods for quasi-static measurement...Whispering gallery mode(WGM)resonators have been widely researched for their high-sensitivity sensing capability,but there is currently a lack of high-sensitivity real-time sensing methods for quasi-static measurement.In this paper,within the framework of dissipative coupling sensing,a new method for quasi-static sensing based on the self-modulation of lithium niobate(LiNbO_(3))resonators is proposed.The(LiNbO_(3))resonator actively modulates the signal to be measured,solving the challenge of real-time demodulation of quasi-static signals.The noise background is upconverted to a high frequency region with lower noise,further enhancing the detection limit.In the demonstration of quasi-static displacement sensing,a customized(LiNbO_(3))resonator with a Q-factor of 2.09×10^(7)serves as the high frequency modulation and sensing element,while the movable resonator acts as the displacement loading unit.Experimental and theoretical results show that the sensing response can be improved to 0.0416 V/nm by dissipation engineering to enhance the resonator evanescent field decay rate and orthogonal polarization optimization.The Allan deviationσdemonstrates a bias instability of 0.205 nm,which represents the best result known to date for microresonator displacement sensing in the quasi-static range.Our proposed scheme demonstrates competitiveness in high-precision quasi-static sensing and provides solutions for the highprecision real-time detection of low frequency or very low frequency acceleration,pressure,nanoparticles,or viruses.展开更多
The rapid rise of artificial intelligence(AI)-integrated electronics,has created an urgent demand for microscale energy storage systems that are not only compact but also capable of intelligent interaction,rapid respo...The rapid rise of artificial intelligence(AI)-integrated electronics,has created an urgent demand for microscale energy storage systems that are not only compact but also capable of intelligent interaction,rapid responsiveness,and seamless system-level integration.Traditional power sources struggle to meet the stringent requirements of miniaturized and multifunctional electronics,where device footprints shrink to the sub-centimeter or even millimeter scale while functionality expands toward adaptive sensing,and wireless communication.展开更多
基金National Key Research and Development Program of China(2022YFB3203400)National Natural Science Foundation of China(U21A20141,62373331,52435011)+1 种基金Natural Science Foundation of Shanxi Province(202403021211095)Foundation of Shanxi Province Key Laboratory of Quantum Sensing and Precision Measurement(201905D121001007)。
文摘Whispering gallery mode(WGM)resonators have been widely researched for their high-sensitivity sensing capability,but there is currently a lack of high-sensitivity real-time sensing methods for quasi-static measurement.In this paper,within the framework of dissipative coupling sensing,a new method for quasi-static sensing based on the self-modulation of lithium niobate(LiNbO_(3))resonators is proposed.The(LiNbO_(3))resonator actively modulates the signal to be measured,solving the challenge of real-time demodulation of quasi-static signals.The noise background is upconverted to a high frequency region with lower noise,further enhancing the detection limit.In the demonstration of quasi-static displacement sensing,a customized(LiNbO_(3))resonator with a Q-factor of 2.09×10^(7)serves as the high frequency modulation and sensing element,while the movable resonator acts as the displacement loading unit.Experimental and theoretical results show that the sensing response can be improved to 0.0416 V/nm by dissipation engineering to enhance the resonator evanescent field decay rate and orthogonal polarization optimization.The Allan deviationσdemonstrates a bias instability of 0.205 nm,which represents the best result known to date for microresonator displacement sensing in the quasi-static range.Our proposed scheme demonstrates competitiveness in high-precision quasi-static sensing and provides solutions for the highprecision real-time detection of low frequency or very low frequency acceleration,pressure,nanoparticles,or viruses.
基金financially supported by the National Natural Science Foundation of China(grants 22479128,22125903,and 22439003)the National Key R&D Program of China(grant 2022YFA1504100)+3 种基金the United Foundation for Dalian Institute of Chemical Physics,Chinese Academy of Sciences,and Shenyang Institute of Automation,Chinese Academy of Sciences(DICP&SIA UN202501)the State Key Laboratory of Catalysis(no.2024SKL-A-001)the Energy Revolution S&T Program of Yulin Innovation Institute of Clean Energy(grant E412010508)the China National Postdoctoral Program for Innovative Talents(BX20240334).
文摘The rapid rise of artificial intelligence(AI)-integrated electronics,has created an urgent demand for microscale energy storage systems that are not only compact but also capable of intelligent interaction,rapid responsiveness,and seamless system-level integration.Traditional power sources struggle to meet the stringent requirements of miniaturized and multifunctional electronics,where device footprints shrink to the sub-centimeter or even millimeter scale while functionality expands toward adaptive sensing,and wireless communication.
