Article
Engineering, Electrical & Electronic
F. Bellarmine, Senthil Kumar Eswaran, Ramanjaneyulu Mannam, M. S. Ramachandra Rao
Summary: The Au-coated ZnO microrods grown on Si substrate exhibit whispering gallery modes in the near band edge region, blue shifting with decrease in rod size, and significant splitting into two branches. The enhancement in WGMs in Au-coated ZnO rods compared with as-grown rods is attributed to plasmon enhancement. The stability of Au-coated ZnO in ambient conditions suggests great potential for small-volume devices and microlasers.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Optics
Han Yang, Yue-Gang Chen
Summary: Circular nanocavities were designed to sense ultra-small particles with high resolution using surface plasmon polariton (SPP) whispering gallery mode (WGM) resonances. Localized surface plasmon resonances (LSPRs) were excited when a metal particle was placed in the circular cavity, causing the SPP WGM to split into symmetric mode (SM) and antisymmetric mode (ASM). The strong coupling between SM resonance and LSPRs allowed for sensitive detection of nanoparticle size and position variations, with a 1 nm spectral resolution capable of detecting changes as small as 0.09 nm in size and 0.1 nm in position. The strong coupling between SPP WGM and LSPRs can be applied for subnanometer resolution sensing.
Article
Materials Science, Multidisciplinary
Lin Ma, Ma-Long Hu, Xiao-Jing Du, Jun He, Zhong-Jian Yang
Summary: This study theoretically investigates the cooperative effects between plasmonic nanoantennas mediated by whispering gallery modes of wavelength-scale dielectric resonators. The results show that strong cooperative effects can be achieved, leading to significantly enhanced optical responses of the antennas. A key feature in producing the strong cooperative effects is the transfer of energy from different antennas to a whispering gallery mode constructively or destructively.
RESULTS IN PHYSICS
(2022)
Article
Multidisciplinary Sciences
Xiao-Chong Yu, Shui-Jing Tang, Wenjing Liv, Yinglun Xu, Qihuang Gong, You-Ling Chen, Yun-Feng Xiao
Summary: An ultrasensitive optofluidic biosensor based on microbubble cavity with interface whispering gallery modes is reported, which has a low detection limit and small sample consumption, enabling the detection of single DNA.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Optics
Xavier Zambrana-Puyalto, Davide D'Ambrosio, Gianluca Gagliardi
Summary: Whispering gallery modes are light modes that arise in cylindrically symmetric structures, with intensity profile strongly confined around the interface. Analytical demonstration shows that the coupling mechanism is related to angular momentum matching between inner WGMs of the sphere and incident beam. The model quantitatively predicts optical coupling efficiency for any tangential position of the incident beam.
LASER & PHOTONICS REVIEWS
(2021)
Article
Optics
Yann Lecieux, Dominique Leduc, Corentin Guigot, Marc Francois, Cyril Lupi
Summary: This paper investigates the use of Whispering Gallery Modes to measure the six components of a homogeneous strain tensor within a sphere. A direct model is established and linearized to obtain the relationship between the strain field and the wavelength shifts of the resonant modes. The expressions are then generalized to six circles, and an inverse system is computed to determine the six strain components. The theoretical performances of the sensor are finally evaluated, showing a high level of accuracy.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Boris Brun, Viet-Hung Nguyen, Nicolas Moreau, Sowmya Somanchi, Kenji Watanabe, Takashi Taniguchi, Jean-Christophe Charlier, Christoph Stampfer, Benoit Hackens
Summary: When confined in circular cavities, graphene charge carriers occupy whispering gallery modes (WGMs) similarly to classical acoustic and optical fields. The study successfully demonstrated the transduction of WGMs to the outside world through a novel configuration, showing mode selectivity and potential for designing disruptive quantum devices. This work provides a proof of concept for graphene whisperitronic devices.
Article
Chemistry, Multidisciplinary
Emanuele Marino, Harshit Bharti, Jun Xu, Cherie R. Kagan, Christopher B. Murray
Summary: In this work, we fabricate tunable optical microresonators using semiconductor nanocrystals. By changing the surface chemistry and initiating photo-oxidation of the nanocrystals, we are able to effectively tune the cavity length and refractive index of the microresonator. This study provides a new approach for constructing optical circuits.
Article
Chemistry, Multidisciplinary
Chun-Yuan Wang, Yungang Sang, Xinyue Yang, Soniya S. Raja, Chang-Wei Cheng, Haozhi Li, Yufeng Ding, Shuoyan Sun, Hyeyoung Ahn, Chih-Kang Shih, Shangjr Gwo, Jinwei Shi
Summary: This study demonstrates a strong coupling system achieved by coupling localized surface plasmon modes. Under specific conditions, a root N scaling of Rabi splitting energy is observed, along with a confirmed giant Rabi splitting in the visible spectral range. Additionally, the coupling strength reaches the ultrastrong coupling regime in some cases, representing about 10% of the mode energy.
Article
Materials Science, Multidisciplinary
Fei Hu, Ting Li, Tianbiao Sun, Yidan Liu, Dongqi Yu, Rongrong Jia, Liyi Shi, Lei Huang
Summary: This work presents a controllable, green, and facile strategy for preparing Au NRs@MnO2 core/shell nanosheets using the LSPR effect of gold nanorods. MnO2 is obtained through the reduction of KMnO4 with photoelectrons induced by the LSPR effect. Methanol is found to be significant in maintaining the shape of Au nanorods by acting as a hole scavenger, and the OER performance of the resulting Au NRs@MnO2 is notably enhanced under proper irradiation and stable after 1000 cycles.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Optics
Xiaoyu Shi, Wanting Song, Dan Guo, Junhua Tong, Tianrui Zhai
Summary: In order to achieve a higher level of secure communication, efforts have been made to develop encryption and anticounterfeiting strategies. One significant approach is the concept of a spectral encryption based on selectively visualized spectral modes in random lasers. By coupling with external whispering gallery mode cavity, hidden localized lasing modes with special multiple-peaks spectra are selected for secure information encryption.
LASER & PHOTONICS REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Zhiyi Yuan, Xin Cheng, Tsungyu Li, Yunke Zhou, Yifan Zhang, Xuerui Gong, Guo-En Chang, Muhammad D. Birowosuto, Cuong Dang, Yu-Cheng Chen
Summary: Phycobiliproteins, a class of light-harvesting proteins found in cyanobacteria and microalgae, have attracted significant interest in bioenergy and sustainable devices due to their ability to convert light into electricity. A novel scheme has been proposed to enhance biological light-harvesting through light-matter interactions at the biointerface of whispering-gallery modes. By utilizing microdroplets as a carrier for light-harvesting biomaterials, strong local electric field enhancement and photon confinement at the cavity interface led to significantly enhanced biophotoelectricity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jun-Wei Liao, Zhen-Ting Huang, Chia-Hung Wu, Nikita Gagrani, Hark Hoe Tan, Chennupati Jagadish, Kuo-Ping Chen, Tien-Chang Lu
Summary: In this study, localized surface plasmon lasing at room temperature in the communication band was achieved using metallic nanoholes as plasmonic nanocavity and InP nanowires as gain medium. Optimization of laser performance was demonstrated through coupling between two metallic nanoholes, allowing for manipulation of lasing properties. These plasmonic nanolasers offer lower power consumption, smaller mode volumes, and higher spontaneous emission coupling factors, making them promising for high-density sensing and photonic integrated circuits.
Review
Materials Science, Multidisciplinary
Yongpeng Chen, Yin Yin, Libo Ma, Oliver G. Schmidt
Summary: Optoplasmonic whispering-gallery-mode (WGM) microcavities combine plasmonic nanostructures and optical microcavities to support hybrid modes with subwavelength mode confinement and high-quality factor. The report reviews geometric designs, fabrication strategies, and three types of hybrid modes in optoplasmonic microcavities, as well as discusses the coupling effect between localized surface plasmon resonances and whispering-gallery modes. Applications in enhanced sensing, nanolasing, and free-space coupling are highlighted, with an outlook on opportunities and challenges in developing large-scale on-chip integrated optoplasmonic systems.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Physics, Applied
Yunfeng Liang, Hai Zhu, Huying Zheng, Ziying Tang, Yaqi Wang, Haiyuan Wei, Ruijiang Hong, Xuchun Gui, Yan Shen
Summary: The research findings indicate that with an increase in the cavity size, the competition between different orders of lasing modes will become more intense, with a significant polarization dependence for high-order whispering gallery mode (WGM) lasing. Furthermore, the competition of WGM lasing modes is strongly influenced by the diameter of cavities and excitation intensities.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Letter
Surgery
Yunfeng Xiao, Zongke Yang
ASIAN JOURNAL OF SURGERY
(2023)
Article
Endocrinology & Metabolism
Fengjing Liu, Si Chen, Xiao Li, Shaobo Li, Yunfeng Xiao, Junfeng Han, Yinfang Tu, Yuqian Bao, Wenkun Bai, Haoyong Yu
Summary: This study explored whether visceral fat accumulation mediates the development of hepatic steatosis in overweight and obese individuals. The results showed a positive correlation between visceral fat accumulation and hepatic steatosis, especially in women. This suggests the need to focus on reducing visceral fat in obese individuals.
Article
Chemistry, Medicinal
Yang Xiao, Mengcong Ma, Yichen Li, Yunfeng Xiao
Summary: This study obtained 86 component-disease intersection genes by intersecting drug targets and Flos Daturae targets, and further screened and identified AKT1, MYC, EGFR, MAPK14, PTGS2, and VEGFA as the six core genes. The results indicated that Flos Daturae has multiple components and targets that regulate body functions for the treatment of breast cancer. It was also inferred that polygenic regulation is more effective than the single-gene approach in breast cancer treatment.
LETTERS IN DRUG DESIGN & DISCOVERY
(2023)
Article
Optics
Jianbin Zhang, Yi Kang, Xin Guo, Yuhang Li, Keying Liu, Yu Xie, Hao Wu, Dawei Cai, Jue Gong, Zhangxing Shi, Yingying Jin, Pan Wang, Wei Fang, Lei Zhang, Limin Tong
Summary: Micro/nanofibres (MNFs) drawn from silica fibres have been extensively studied for various applications, and we demonstrate high-power low-loss continuous-wave (CW) optical waveguiding in MNFs around 1550 nm. We achieved waveguiding of optical power over 10 W in a pristine MNF with a diameter down to 410 nm, which is significantly higher than previous demonstrations. We also predict an optical damage threshold of 70 W. Furthermore, we show high-speed optomechanical driving of microparticles and higher second harmonic generation efficiency in high-power CW waveguiding MNFs. These findings have implications for both scientific research and technological applications in high-power MNF optics.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Physics, Applied
Yuan-Hao Yang, Xin-Biao Xu, Jia-Qi Wang, Mai Zhang, Ming Li, Zheng-Xu Zhu, Zhu-Bo Wang, Chun-Hua Dong, Wei Fang, Huakang Yu, Guang-Can Guo, Chang-Ling Zou
Summary: This study investigates the nonlinear coupling between on-chip confined optical modes and free-space continuum modes. The experiment observed the radiation of second-harmonic wave caused by pump fields in integrated lithium niobate microcavities. The mechanism of nonlinear optical radiation (NOR) is further verified by demonstrating the difference frequency generation between a free-space input and an on-chip pump field. The revealed mechanism of NOR has universal applicability for dielectric photonic integrated devices, allowing for spatial engineering of optical fields and light sources.
PHYSICAL REVIEW APPLIED
(2023)
Article
Computer Science, Artificial Intelligence
Junping Zhang, Jian Pu, Jie Chen, Haolin Fu, Yongzhi Tao, Shihmin Wang, Qi Chen, Yunfeng Xiao, Siming Chen, Yuan Cheng, Hongming Shan, Dewang Chen, Fei-Yue Wang
Summary: Data science is dedicated to extracting valuable data from noisy data to generate actionable insights. It finds broad applications in internet search, tourism, social media, and many other domains. However, there have been limited systematic studies on the application of data science in the field of intelligent vehicles. With the increasing size of data in intelligent vehicles, it is essential to provide a high-level overview of how data science can be utilized to enhance intelligent vehicle performance. This paper retrospectively examines the history of data science and highlights the potential and prospects of data science in the domain of intelligent vehicles, discussing topics such as data management, trusted data, interpretability, and the high-order relationship of intelligent vehicle data. Additionally, the paper examines the relationship between data science and practical intelligent vehicle applications, including self-driving systems, data visualization, and parallel intelligent vehicle systems.
IEEE TRANSACTIONS ON INTELLIGENT VEHICLES
(2023)
Article
Nanoscience & Nanotechnology
Yuqi Zhen, Xitao Tu, Jiajie Zhu, Yuanbiao Tong, Lufang Liu, Ni Yao, Pan Wang, Limin Tong, Lei Zhang
Summary: Fiber-tip sensors based on the Fabry-Perot interferometer (FPI) are widely used for temperature and pressure measurements in confined spaces. By using an atomically smooth gold microflake (GMF) and a PDMS spacer, the fiber-tip sensor achieves a high Q factor of 628 and maintains stable sensing performance under large deformation. The sensor shows a linear response to temperature with a sensitivity of 1.74 nm℃-1 and a sensitivity of 11.48 nm kPa-1 for pressure sensing. Simultaneous measurement of temperature and pressure is also demonstrated using wavelength demodulation. The integration of high-quality FP cavities on fiber tips opens new opportunities for miniaturized optical sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Xingda Song, Qi Wang, Qiulan Liu, Longteng Yu, Shipeng Wang, Ni Yao, Limin Tong, Lei Zhang
Summary: A flexible miniaturized optical temperature sensor was fabricated by embedding twisted micro/nanofibers in a thin layer of polydimethylsiloxane. The sensor exhibits ultrahigh sensitivity and high resolution, enabling applications in collision avoidance for robotics and real-time temperature measurement in microfluidic chips.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Automation & Control Systems
Shipeng Wang, Xiaoyu Wang, Shan Wang, Wen Yu, Longteng Yu, Lei Hou, Yao Tang, Zhang Zhang, Ni Yao, Chuan Cao, Hao Dong, Lei Zhang, Hujun Bao
Summary: This study proposes and realizes an optical-nanofiber-based gesture-recognition wristband that can accurately recognize gestures and be used to interact with a robotic hand. The wristband is simple in structure, convenient to use, and remarkably imperceptible to the user. With the assistance of a machine-learning algorithm, a maximum recognition accuracy of 94% is achieved for testers with different physiques. The wristband has broad application prospects and is a promising solution for advanced human-machine-interaction devices.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Automation & Control Systems
Yao Tang, Longteng Yu, Jing Pan, Ni Yao, Weidong Geng, Xiong Li, Limin Tong, Lei Zhang, Zhengyou Zhang, Aiguo Song
Summary: Soft, flexible, thin, and multimodal robotic skins are achieved by embedding lab-made optical nanofibers into elastomeric films. These skins have low flexural rigidity and large evanescent field, thanks to the subwavelength diameters of the nanofibers. Variable sensitivities and sensing ranges for both force and temperature can be achieved by tuning the light wavelength, nanofiber diameter, and skin thickness. These optical nanofiber skins have the potential to be used in various intelligent systems, including robotics, prosthetics, human-machine interface, and wearable devices.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Optics
Chaoyang Gong, Xi Yang, Shui-Jing Tang, Qian-Qian Zhang, Yanqiong Wang, Yi-Ling Liu, Yu-Cheng Chen, Gang-Ding Peng, Xudong Fan, Yun-Feng Xiao, Yun-Jiang Rao, Yuan Gong
Summary: This study reports the development of submonolayer lasers on optical fibers as ultrasensitive and disposable biosensors for biomarker detection, which offers great potential in early diagnosis.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhenhua Zhang, Lei Zhang
Summary: This paper introduces a method to package EPOF, LED, and PD into a flexible silicone patch for healthcare and human-machine interaction applications. The packaging not only protects the EPOF sensor from environmental disturbances but also allows for adjustment of the sensor's sensitivity and working range. Proof-of-concept demonstrations include a smart laryngoscope and a data glove for remote control based on gesture recognition.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Optics
Zhi-Yan Wang, Xiao Xiong, Jin-Yu Liu, Qihuang Gong, Yun-Feng Xiao, Qi-Tao Cao
Summary: This study investigates the nonlinear strong coupling dynamics of second harmonic generation in an optical microresonator, revealing phenomena such as intensity-dependent Rabi oscillation and clamped maximum SHG conversion efficiency. Additionally, multiple nonlinear strong coupling physics phenomena are observed, including bistability, period-doubling bifurcation, and chaos. The study also identifies pseudoHermitian degeneracy, which enhances SHG efficiency through synchronized resonances. This work is important for the implementation of high-efficiency photonic devices and enriching the understanding of nonlinear dynamics and non-Hermitian physics in optical microresonators.
Article
Biochemical Research Methods
Ning Liu, Ni Yao, Shipeng Wang, Zhang Zhang, Tanchen Ren, Ying Gao, Xuhao Zhou, Limin Tong, Lei Zhang
Summary: This study demonstrates an optical nanofibre-enabled microfluidic sensor for the detection and sizing of nanoparticles. The results show that the sensor can monitor the transmitted intensity of nanoparticles in real-time, enabling the detection of single nanoparticles and the counting and sizing of nanoparticles in solution at a femtoliter-scale level. This technology shows great potential for various biomedical applications.
Review
Oncology
Yunqi Han, Yunfeng Xiao, Lei Yu, Jing Chen, Xudong Yang, Hongwei Cui, Junqing Liang
Summary: Hepatocellular carcinoma (HCC) is a common malignant tumor that is increasing in incidence. Current clinical treatments mostly involve chemical drugs, which have significant side effects and are prone to drug resistance. Therefore, the development of natural compounds has become a new treatment strategy. Studies have shown that luteolin, a natural flavonoid, has anti-tumor effects by inhibiting growth, inducing apoptosis, and reducing angiogenesis in tumor cells. This study aims to evaluate the role of luteolin in regulating cancer cell proliferation, migration, and invasion in HCC.
