Xudong Zhan

University of Shanghai for Science and Technology

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Xiaofei Zang

University of Shanghai for Science and Technology

Jiong Xu

University of Shanghai for Science and Technology

Yiming Zhu

University of Shanghai for Science and Technology

K. Liu

University of Cambridge

Mingqi Xia

Peking Union Medical College Hospital

Songlin Zhuang

University of Shanghai for Science and Technology

Juntao Ma

Heilongjiang Provincial Academy of Agricultural Sciences

Mingfei Xia

Guizhou Normal University

Cooperative Institutions

University of Shanghai for Science and Technology

Tongji University

Shenzhen Terahertz Technology Innovation Research Institute

Shanghai Jiao Tong University

Lanzhou University

Nanjing Medical University

Ordnance Engineering College

Xidian University

Peking Union Medical College Hospital

Chinese Academy of Medical Sciences & Peking Union Medical College

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Information fusion based on equipment reliability prediction

Mingfei Xia Xudong Zhan Mingqi Xia Juntao Ma

Traditional reliability assessment methods are generally on the basis of failure lifetime data. The failure lifetime data of high reliability and long lifetime product are obtained difficultly by life test and accelerated life test. Degradation data can provide useful information about the reliability assessment for these products. Aiming at these problems, a method of reliability prediction is presented based on failure data's reliability assessment, accelerated performance degradation and information fusion theory. Finally, this paper gives a case of accelerated performance degradation testing of 24V/2A power supply board to steady voltage to apply the method, whose results demonstrate that this method is correct and valid for reliability assessment of high reliability and long life electronic equipments.

Accelerated life testing

Degradation

Reliability theory

Information fusion

10.1109/icrms.2014.7107267

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Citations (1)

Manipulating electromagnetic waves in a cavity-waveguide system with nontrivial and trivial modes

Optics Letters (2022)

Jiong Xu Xiaofei Zang Xudong Zhan K. Liu Yiming Zhu

The coupled cavity-waveguide approach provides a flexible platform to design integrated photonic devices that are widely applied in optical communications and information processing. Topological photonic crystals that can excite the nontrivial edge state (ES) and corner state (CS) have an unprecedented capability to manipulate electromagnetic (EM) waves, leading to a variety of unusual functionalities that are impossible to achieve with conventional cavity-waveguide systems. In this Letter, two-dimensional photonic crystals consisting of an ES waveguide, a CS cavity, and a trivial cavity are proposed as a means to robustly control the transmission characteristics of electromagnetic waves. As a proof-of-principle example, the analog of electromagnetically induced transparency (EIT) that is tolerated in disorders due to the robustness of the CS is numerically demonstrated. In addition, the analog of multi-EIT is also verified by introducing a trivial cavity with two degenerate orthogonal modes. This unique approach for robustly manipulating EM waves may open an avenue to the design of high-performance filters, modulators, and on-chip processors.

Waveguide

Electromagnetically Induced Transparency

Robustness

10.1364/ol.472677

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Citations (6)

Phase‐Coupling‐Induced Far‐Field Modulation between Nontrivial and Trivial Modes in Cavity–Waveguide Systems

Advanced Photonics Research (2023)

Xudong Zhan Xiaofei Zang K. Liu Jiong Xu Yiming Zhu

Photonic crystal (PhC) can be accurately designed to generate nontrivial and trivial modes, that is, edge states (ES)/corner states (CS) and cavity modes, respectively. The coupled cavity–waveguide system designed by PhC provides a chip‐scale platform to manipulate electromagnetic (EM) waves that is usually based on near‐field coupling between nontrivial and trivial modes. However, the far‐field interaction between nontrivial and trivial modes for manipulating EM waves has not attracted wide attention yet. Herein this article, the coupled cavity–waveguide systems, which consist of two separated CS cavities (interacting with single/multiple trivial cavity/cavities) coupled by means of an ES waveguide, are designed to robustly tune the transmission properties of EM waves by modulating the phase coupling between CS cavities. As proof‐of‐principle examples, single‐, dual‐, and triple‐electromagnetically‐induced‐transparency‐like (EIT‐like) phenomena with tunable transmission spectra are theoretically and numerically demonstrated by controlling the distance (generated phase accumulation) between the CS cavities. In addition, the robustness in generating EIT‐like transmission characteristics is also demonstrated due to the robustness of the CS cavities. The unique cavity–waveguide systems with unprecedented capability in robustly tuning the transmission spectra of EM waves can be extended to design other high‐performance devices with potential applications in sensing, detecting, and information processing.

Waveguide

Robustness

Electromagnetically Induced Transparency

10.1002/adpr.202300089

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Citations (1)