Application Of WGM Optical Microcavity In Sensing And Quantum Optics

Since the 1980 s,the whispering gallery mode in optical microcavities has been a research hotspot in the field of micro/nano optics.Its unique spectral properties make the whispering gallery mode optical microcavity applied in many fields of physics and engineering.At present,the research on the optical microcavity of the whispering gallery mode mainly focuses on the improvement of the performance and function of the optical device.Their performance depends primarily on the exact distribution of the light field energy in the optical microcavity,limited by the geometry of the nanoscale device and shaping,and the key to meeting these properties is to achieve a cavity with a high quality factor.In this paper,we explore the whispering gallery mode in optical microcavity for the study of sensing and quantum tunneling,and carry out further experiments and analysis on the characteristics of the whispering gallery mode in optical microcavities.In this paper,the internal loss of the whispering-gallery-mode optical cavity leads to a decrease of the Q value.Combined with the on-chip silicon-based device fabrication technology,the high-sensitivity sensor based on the on-chip circular microcavity is improved and realized.By optimizing the preparation process,increasing the size of the microcavity.The internal loss of the microcavity is reduced,and the high sensitivity temperature sensing application of the optical microcavity is realized.The sensitivity can reach 0.1 nm/°C.The sensor components and integrated photonic chips provide important experimental and theoretical support.In addition,this paper explores the research and application of deformed microcavity on quantum tunneling,and designs a new type of deformed cavity structure.The new structure can realize the simultaneous observation of tunneling process,including chaotic state to steady state and steady state to chaotic state.Through the simulation analysis and the comprehensive analysis of the optical experimental results,the tunneling process between the steady state and the chaotic state in the deformation cavity is verified by simulation and experiment.It provides an experimental basis and a new basic platform for the study of quantum tunneling effects in microcavities.