Article
Chemistry, Multidisciplinary
Zijin Zhao, Chunyu Xu, Yao Ma, Kaixuan Yang, Ming Liu, Xixiang Zhu, Zhengji Zhou, Liang Shen, Guangcai Yuan, Fujun Zhang
Summary: In this study, a smart strategy is proposed to achieve UV narrowband response by coupling Fabry-Perot microcavity with photomultiplication type organic photodetectors (PM-OPDs). The UV spectral selectivity of the optical microcavity can be optimized by tuning the thickness of the layers, leading to improved external quantum efficiency (EQE) of the PM-OPDs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhi-Yu Yu, Zhi-He Guo, Yu-Chen Zhang, Xun Zhang, Yan Wang, Feng-Yang Ma, Yu Liu, Xia-Yan Xue, Qing-Yuan Jin, Jing Li, Jian Sun, Song-You Wang, Dong-Chen Wang, Ming Lu
Summary: A luminescent Si nanocrystal thin film with high photoluminescence quantum yield was successfully fabricated, achieving a net optical gain structure and threshold behavior under optical pumping. Various laser characteristics were observed, such as spectral narrowing, polarization, and small emission angles.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Xiaoli Zhang, Xinlei Zhou, Shuo Wang, Pengcheng Tao, Fengxiang Ma, Qingxu Yu, Wei Peng
Summary: This article presents a miniature fiber optic transverse load sensor based on a bubble microcavity. It features small size, low cost, easy fabrication, high sensitivity, and low temperature sensitivity, making it highly promising for transverse load sensing.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Multidisciplinary
Tianyuan Liang, Wenjie Liu, Xiaoyu Liu, Yuanyuan Li, Jiyang Fan
Summary: Patterned metal halide perovskites exhibit unique photophysical properties and high performance in photonic applications. A UV continuous wave laser can induce in situ crystallization of CsPbBr3 quantum dots inside CsPb2Br5 microplatelets, leading to high-Purcell-effect-enhanced cavity mode spontaneous emission. The luminescence shows a superlinear emission intensity-excitation intensity relation, suggesting the possibility of stimulated emission at higher photon concentrations.
Article
Chemistry, Multidisciplinary
Pau Guell-Grau, Francesc Pi, Rosa Villa, Olof Eskilson, Daniel Aili, Josep Nogues, Borja Sepulveda, Mar Alvarez
Summary: The first stretchable plasmonic-enhanced and wrinkled Fabry-Perot (FP) cavities are demonstrated, which are composed of self-embedded arrays of Au nanostructures at controlled depths into elastomer films. These novel structures have unprecedented optomechanical effects and can be used for strain sensing.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Miaosen Fan, Hao Zhang, Zhonghua Gong, Yuan Yao, Wei Lin, Zehui Lu, Bo Liu
Summary: Exceptional points (EPs) in photonics have attracted significant attention due to the counterintuitive phenomena occurring around them. A non-Hermitian tunable system based on coupled fiber-optic Fabry-Perot microcavities with distributed gain/loss is proposed to host quasi-static EP-encirclement and parity-time (PT) symmetry schemes. Analytical calculations show that tunable coupling between microcavities enables tunability of EPs under PT symmetry regime, leading to the generation of broadband microwave signals and high frequency tuning sensitivity for specific refractive index ranges.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Jiaxuan Wang, Jinjin Zhao, Jiayuan Wang, Hongdan Wan, Zuxing Zhang
Summary: The study introduces a multi-frequency fiber optic acoustic sensor based on a graphene-oxide Fabry-Perot microcavity, which has a wide frequency response range and high signal-to-noise ratio. The sensor has potential applications in various fields, such as structural health monitoring and biomedical applications.
OPTICAL FIBER TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Mao-qing Chen, Yong Zhao, He-ming Wei, Cheng-liang Zhu, Sridhar Krishnaswamy
Summary: A 3D printed castle style Fabry-Perot microcavity on optical fiber tip for humidity sensing was developed and experimentally demonstrated. The microcavity has periodically arranged square holes allowing for Polyvinyl Alcohol filling, creating a high sensitivity and fast response area for humidity sensing. The experimental results showed a high sensitivity of 248.9 pm/%RH with good repeatability and stability, making it a promising candidate for humidity sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Optics
Xiaoyu Gao, Shengjie Cao, Yongqiu Zheng, Jiandong Bai
Summary: This study introduces a novel Fabry-Perot cavity acoustic sensor based on silicon optical waveguide Bragg gratings, which has great development prospects in aerospace and other industrial fields due to its small size and anti-electromagnetic interference.
Article
Engineering, Electrical & Electronic
Xia Li, Yu Li, Chenxiao Wang, Wa Jin, Guangwei Fu, Xinghu Fu, Weihong Bi
Summary: In this study, we conducted an experimental investigation on a highly sensitive, low-concentration chloride ion fiber-optic probe using a Fabry-Perot interferometer. By wet depositing a sensitive Ag/alginate nanocomposite film on the surface of the probe, the sensitivity of the probe was measured as 24.67 nm/% by observing the peak wavelength drift.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Physics, Multidisciplinary
Pei Si-Hui, Song Zi-Xuan, Lin Xing, Fang Wei
Summary: This review discusses the importance of the interaction between light and matter using open Fabry-Perot cavities. It introduces the basic properties and fabrication techniques of these cavities, and presents recent progress in weak coupling, strong coupling, and bad emitter regimes. The challenges and perspectives in this field are also discussed.
ACTA PHYSICA SINICA
(2022)
Article
Optics
Zeqiu Liu, Sikang Yang, Yu Han, Tengfei Hao, Minming Zhang, Ming Li, Ninghua Zhu
Summary: By breaking the parity-time (PT) symmetry, single mode operation lasing can be achieved in a multiple mode Fabry-Perot (FP) resonator, which is of vital importance for practical applications like communication systems. Two identical FP resonators are used to establish a symmetric system, resulting in high output power with lower fabrication difficulty and intracavity losses compared to ring resonators. The PT-symmetric FP laser has also been demonstrated with electrical pumping, offering potential for mode selection of high-performance FP lasers in practical applications.
Article
Chemistry, Multidisciplinary
Feifan Li, Xinyang Mu, Xueqing Tang, Ge Song, Hongzhao Sun, Xiuling Zha, Peiyan Sun, Jianhui Fang, Dongmei Hu, Shan Cong, Zhigang Zhao
Summary: Non-metallic materials have unique advantages over metal materials as active substrates for surface-enhanced Raman scattering (SERS). However, the Raman enhancement achieved with non-metallic materials is considerably lower due to their inefficient interaction with the incident wavelength. In this study, colourful semiconductor-based SERS substrates are proposed for the first time by utilizing a Fabry-Perot cavity, which allows for manipulating light. By finely adjusting the absorption frequency and intensity, resonant absorption can be achieved with various non-metal SERS substrates, leading to a sensitivity enhancement of approximately 100 times.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Optics
Shinya Kato, Takao Aoki
Summary: We demonstrate the realization of single-frequency stimulated Brillouin lasing in short fiber Fabry-Perot resonators. By adjusting the parameters of fiber Bragg gratings, we avoid cascaded lasing and achieve efficient, compact, narrow-linewidth light sources.
Article
Optics
Aigars Atvars
Summary: This paper provides analytical formulas for describing resonance conditions in whispering gallery mode optical resonators, introducing basic terms and describing interference phenomena in detail. The text also covers Fabry-Perot resonators, all-pass and add-drop optical filters, to help analyze the effects of optical resonators and guide the development of novel applications of microresonators.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
