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Subwavelength negative-index waveguiding enabled by coupled spoof magnetic localized surface plasmons

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Photonics Research 2019年第3期7卷 274-282页

作者： ZHEN LIAO GUO QING LUO BEN GENG CAI BAI CAO PAN WEN HUI CAO Key Laboratory of RF Circuits & System of Ministry of Education Institute of Antennas and Microwave Technology Hangzhou Dianzi UniversityXiasha High Education Park

Magnetic localized surface plasmon modes are supported on metallic spiral structures. Coupling mechanisms for these metamaterial resonators, which are the joint action of magnetic and electric coupling, are studied. Based on the strong coupling, spoof magnetic plasmon modes propagating in the backward direction are proposed along a chain of subwavelength resonators. The theoretical analysis, numerical simulations, and experiments are in good agreement. The proposed novel route for achieving negative-index waveguiding has potential applications in integrated devices and circuits.

关键词： Subwavelength negative-index waveguiding coupled spoof magnetic localized surface plasmons Magnetic localized surface plasmon modes

一种基于Intranet的分布式IP spoof检测系统

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控制工程 2005年第2期12卷 183-185页

作者：姚羽张志强高福祥于戈东北大学信息科学与工程学院辽宁沈阳110004

提出了基于Intranet的分布式IPspoof检测系统。该系统能高效检测Intranet内的IPspoof行为。分析了目前的IPspoof防范技术。根据Intranet的特点详细介绍了系统的设计。给出了IPspoof判定方法、检测系统的关键部件Monitor的设计,并给出了... 详细信息

提出了基于Intranet的分布式IPspoof检测系统。该系统能高效检测Intranet内的IPspoof行为。分析了目前的IPspoof防范技术。根据Intranet的特点详细介绍了系统的设计。给出了IPspoof判定方法、检测系统的关键部件Monitor的设计,并给出了数据采集模块的实现。实验表明,该系统具备高精度、高实时性和低流量的特点,可以在不同规模的Intranet以及网络安全系统中广泛使用。

关键词： IP spoof 分布式Monitor 攻击检测检测系统网络安全 IP欺骗

Terahertz time-domain spectroscopy and micro-cavity components for probing samples: a review

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Frontiers of Information Technology & Electronic Engineering 2019年第5期20卷 591-607页

作者： Lin CHEN Deng-gao LIAO Xu-guang GUO Jia-yu ZHAO Yi-ming ZHU Song-lin ZHUANG Shanghai Key Lab of Modern Optical System University of Shanghai for Science and Technology Shanghai 200093 China Shanghai Cooperation Innovation Centre of Terahertz Spectroscopy and Imaging Technology Shanghai 200093 China Cooperative Innovation Center of Terahertz Science University of Electronic Science and Technology Chengdu 611731 China

We give a brief review of the developments in terahertz time-domain spectroscopy(THz-TDS) systems and microcavity components for probing samples in the University of Shanghai for Science and Technology. The broadband terahertz(THz) radiation sources based on GaAs m-i-n diodes have been investigated by applying high electric fields. Then, the free space THz-TDS and fiber-coupled THz-TDS systems produced in our lab and their applications in drug/cancer detection are introduced in detail. To further improve the signal-to-noise ratio(SNR) and enhance sensitivity, we introduce three general micro-cavity approaches to achieve tiny-volume sample detection, summarizing our previous results about their characteristics, performance, and potential applications.

关键词： Terahertz (THz) time-domain spectroscopy Micro-cavity Metal holes array Waveguide cavities spoof localized surface plasmons (LSPs)

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