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6G无线通信thz电子学、光子学、等离子体波器件及应用的新进展

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微纳电子技术 2024年第6期61卷 1-21页

作者：赵正平中国电子科技集团有限公司北京100846 固态微波器件与电路全国重点实验室石家庄050051

移动通信技术已成为由现代智能信息网络发展带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后,预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子学... 详细信息

移动通信技术已成为由现代智能信息网络发展带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后,预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子学、等离子体波器件及应用的新进展。综述并分析了当今thz器件与电路以及典型应用的关键技术的发展现状与趋势,包含真空电子领域的行波管、碰撞雪崩渡越时间(IMPATT)二极管、thz谐振隧穿二极管(RTD)、thz肖特基势垒二极管(SBD)、thz CMOS、thz SiGe BiCMOS、thz InP HEMT/InP HBT、D波段GaN HEMT、光子学辅助的太赫兹波技术、石墨烯为代表的二维材料器件与电路。thz器件的应用创新重点包含四个方面:通道测量与建模、多输入多输出(MIMO)天线阵列、智能可重构反射阵列以及通信局域网络架构和实验平台。

关键词： 6G无线通信 thz thz电子学 thz光子学 thz等离子体波器件

6G无线通信thz电子学、光子学、等离子体波器件及应用的新进展(续)

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微纳电子技术 2024年第7期61卷 1-17页

作者：赵正平中国电子科技集团有限公司北京100846 固态微波器件与电路全国重点实验室石家庄050051

移动通信技术已成为现代智能信息网络发展的带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后,预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子学... 详细信息

移动通信技术已成为现代智能信息网络发展的带动的重要技术之一。继sub-6 GHz和毫米波频段的5G移动通信成为当今移动通信的发展主流之后,预计以亚thz/thz频段的6G移动通信将于2030年到来。综述了用于未来6G无线通信的thz电子学、光子学、等离子体波器件及应用的新进展。综述并分析了当今thz器件与电路以及典型应用的关键技术的发展现状与趋势,包含真空电子领域的行波管、碰撞雪崩渡越时间(IMPATT)二极管、thz谐振隧穿二极管(RTD)、thz肖特基势垒二极管(SBD)、thz CMOS、thz SiGe BiCMOS、thz InP HEMT/InP HBT、D波段GaN HEMT、光子学辅助的太赫兹波技术、石墨烯为代表的二维材料器件与电路。thz器件的应用创新重点包含四个方面:通道测量与建模、多输入多输出(MIMO)天线阵列、智能可重构反射阵列以及通信局域网络架构和实验平台。

关键词： 6G无线通信 thz thz电子学 thz光子学 thz等离子体波器件

基于2.58thz下CMOS晶体管沟道寄生效应的高响应度探测器阵列的研究

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基于2.58THz下CMOS晶体管沟道寄生效应的高响应度探测器阵列的研究

Intense broadband thz generation from femtosecond laser filamentation

2024年全国微波毫米波会议（中国微波年会）

作者：马凯学张新傅海鹏天津大学

本报告详细讨论了天津大学互联与感知集成电路与系统团队在2.58thz频段下,基于等离子体波理论的太赫兹探测及成像的最新研究进展。我们的目标是评估在晶体管栅极和源极之间具有不同栅源距离的情况下,2.58thz互补型金属氧化物半导体(CMOS... 详细信息

本报告详细讨论了天津大学互联与感知集成电路与系统团队在2.58thz频段下,基于等离子体波理论的太赫兹探测及成像的最新研究进展。我们的目标是评估在晶体管栅极和源极之间具有不同栅源距离的情况下,2.58thz互补型金属氧化物半导体(CMOS)探测器的响应度和噪声等效功率性能,以探究晶体管寄生电容效应对其性能的影响。为此,我们设计并制备了基于55纳米CMOS工艺的4×8阵列全集成太赫兹探测器阵列芯片。基于等离子体波理论,我们在远超其截止频率的太赫兹频段实现了探测[1],[2]。研究发现,通过适当增加栅极和源极之间的距离,可以减小两者之间的寄生电容,同时也增加了探测器结构的不对称性,并减小源端的太赫兹波能量损失,提高了探测器的响应度,同时降低了噪声。为了有效对比,我们设计了两个具有不同栅极和源极距离的4×4阵列探测器结构。每个像素包括一个高增益片上贴片天线、一个源极驱动的单NMOS结构探测器和一个选择开关,同时行列选通电路也集成在整个太赫兹成像系统内,从而实现了所有像素点的测试。同时,我们将晶体管的电容效应纳入现有的太赫兹探测器响应模型中,以研究其对探测器性能的影响[3]-[6]。测试结果显示,减小太赫兹波馈入端处的寄生电容可以提高馈入探测器的太赫兹波能量,进而提升了性能。我们使用锁相技术对设计的太赫兹成像芯片进行了测试,结果显示,在195Hz的调制频率下,栅源距离较长的探测器结构具有较好的性能,其最高的响应度达到了573.5V/W,最小的噪声等效功率为95.9pW/Hz1/2。与相近频段的探测器性能对比显示,在不需要额外集成放大器或硅透镜的情况下,该探测器的响应度优于其他类似的探测器[8]-[12]。同时,每个结构探测器阵列的响应度性能满足准高斯分布。我们还搭建了太赫兹成像系统,在机械斩波调制的太赫兹波辐照下,实现了对干燥树叶的单点扫描式太赫兹主动成像。扫描区域为4cm×3cm,图像分辨率为400×300像素,扫描步长为100μm。成像结果清晰地显示了树叶内部的脉络,实现了高分辨率太赫兹成像。

关键词：太赫兹波寄生电容太赫兹成像 thz 噪声等效功率高响应度探测器阵列寄生效应晶体管

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Chinese Optics Letters 2013年第1期11卷 25-30页

作者： Tie-Jun Wang Shuai Yuan Yanping Chen See Leang Chin Centre d'Optique Photonique et Laser (COPL) and Département de Physique de Génie Physique et D'Optique Université Laval Québec

Broadband and energetic terahertz （thz） pulses can be remotely generated in air through filamentation. We review such thz generation and detection in femtosecond Ti-sapphire laser induced remote filaments. New results are presented on the direct relationship between thz generation in a two color filament and induced N2 fluorescence through population trapping during molecular alignment and revival in air. This further supports the new technique of remote thz detection in air through the sensitive measurement of N2 fluorescence.

关键词： thz Intense broadband thz generation from femtosecond laser filamentation

Revealing the underlying mechanisms behind TE extraordinary thz transmission

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Photonics Research 2020年第4期8卷 430-439页

作者： SUZANNA FREER MIGUEL CAMACHO SERGEI A.KUZNETSOV RAFAEL R.BOIX MIGUEL BERUETE MIGUEL NAVARRO-CíA School of Physics and Astronomy University of BirminghamBirmingham B152TTUK Department of Physics and Astronomy University of ExeterExeter EX44QDUK Rzhanov Institute of Semiconductor Physics SB RAS Novosibirsk Branch TDIAM Novosibirsk 630090Russia Physics Department Novosibirsk State UniversityNovosibirsk 630090Russia Department of Electronics and Electromagnetism Faculty of PhysicsUniversity of Seville41012 SevilleSpain Antennas Group-TERALAB Universidad Pública de Navarra31006 PamplonaSpain Institute of Smart Cities Universidad Pública de Navarra31006 PamplonaSpain

Transmission through seemingly opaque surfaces,so-called extraordinary transmission,provides an exciting platform for strong light–matter interaction,spectroscopy,optical trapping,and color *** of the effort has been devoted to understanding and exploiting TM extraordinary transmission,while TE anomalous extraordinary transmission has been largely omitted in the *** is regrettable from a practical point of view since the stronger dependence of the TE anomalous extraordinary transmission on the array’s substrate provides additional design parameters for *** provide high-performance and cost-effective applications based on TE anomalous extraordinary transmission,a complete physical insight about the underlying mechanisms of the phenomenon must be first laid *** this end,resorting to a combined methodology including quasi-optical terahertz(thz)time-domain measurements,full-wave simulations,and method of moments analysis,subwavelength slit arrays under s-polarized illumination are studied here,filling the void in the current *** believe this work unequivocally reveals the leaky-wave role of the grounded-dielectric slab mode mediating in TE anomalous extraordinary transmission and provides the necessary framework to design practical high-performance thz components and systems.

关键词： Revealing the underlying mechanisms TE extraordinary transmission thz

thz generation from water wedge excited by dual-color pulse

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Chinese Optics Letters 2020年第7期18卷 107-110页

作者： Min Li Zhenyu Li Junyi Nan Yu Xia Mingyang He Feng Wang Wenhui Lu Shuai Yuan Heping Zeng Shanghai Key Laboratory of Modern Optical System Engineering Research Center of Optical Instrument and SystemMinistry of EducationSchool of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China

Terahertz(thz) waves could be generated through exciting a gravity-guided, free-flowing water wedge by a dual-color pulse. It is not required to rotate the optimal angle considering the water film as an ionization *** is demonstrated to be more effective to generate stronger thz radiation when the ionization position is on the front surface of the air water interface of the water wedge by moving its position. The effect of pulse energy on thz generation is also investigated, and it is observed that with the increase of pulse energy the thz electric field shows a quadratic rising trend. These observations are consistent with air plasma induced thz emission.

关键词： water wedge thz plasma

Study of broadband thz time-domain spectroscopy at different relative humidity levels

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Chinese Optics Letters 2012年第4期10卷 78-81页

作者：林家任何宜贞张希成 Center for Terahertz Research Rensselaer Polytechnic InstituteTroyNY 12180-3590USA

Two detection techniques of broadband terahertz（thz）time-domain spectroscopy-thz air-biased coherent detection（thz-ABCD;from 0.3 to 14 thz）and electro-optical（EO）detection（from 0.3 to 7 thz）-are both performed at several different relative humidity *** thz power exponentially decays with the increase in relative *** dynamic range of the main pulse in the time domain linearly decreases as the relative humidity increases from 0%to 40%,and linear fittings show that the slopes are-0.017 and-0.019 for thz-ABCD and EO detection,*** of the multiple reflections caused by the crystal in the common EO detection,thz-ABCD has better spectral resolution（17 GHz）than that of EO detection（170 GHz）.The spectrum of water vapor absorption measured by thz-ABCD is also compared with that measured by the Fourier transform infrared spectroscopy（FTIR）.

关键词： thz Study of broadband thz time-domain spectroscopy at different relative humidity levels time

thz spectrum of reduced glutathione

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Science China(Physics,Mechanics & Astronomy) 2005年第5期48卷 585-592页

作者： WANG Weining1, YAN Haitao1, YUE Weiwei1, ZHAO Guozhong1, ZHANG Cunlin1, LIU Haibo2 & ZHANG Xicheng2 1. Department of Physics, Capital Normal University, Beijing 100037, China 2. Center for Terahertz Research, Rensselaer Polytechnic Institute, Tory, NY, USA Department of Physics Capital Normal Univesity Beijing China Center for Terahertz Research Rensselaer Polytechnic Institute Tory USA

The optical characteristics of reduced glutathione molecules between 0.2 thz and 2.4 thz have been investigated by thz time-domain spectroscopy (thz-TDS). The absorption characteristics and optical parameters of the reduced glutathione purged with Nitrogen at room temperature were obtained experimentally. The measured results were fitted well with the theoretical results computed by using Density Functional Theory (DFT) in far-infrared range. Also the conformation of the reduced glutathione molecule was simulated by Gaussian 03. This work has demonstrated significantly that thz-TDS spectroscopy can further be used to study other biological molecules in biological and biomedical engineering.

关键词： thz time domain spectroscopy, reduced glutathione, absorption spectrum, biological engineering.

A primary model of thz and far-infrared signal generation and conduction in neuron systems based on the hypothesis of the ordered phase of water molecules on the neuron surface Ⅰ: signal characteristics

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Science Bulletin 2020年第4期65卷 308-317页

作者： Zuoxian Xiang Chuanxiang Tang Chao Chang Guozhi Liu Department of Engineering Physics Tsinghua UniversityBeijing 100084China Innovation Laboratory of Terahertz Biophysics National Innovation Institute of Defense TechnologyBeijing 100071China

In this paper, we use the theory of quantum optics and electrodynamics to study the electromagnetic field problem in the nervous system based on the assumption of an ordered arrangement of water molecules on the neuronal surface. Using the Lagrangian of the water molecule-field ion, the dynamic equations for neural signal generation and transmission are derived. Perturbation theory and the numerical method are used to solve the dynamic equations, and the characteristics of high-frequency signals(the dispersion relation, the time domain of the field, the frequency domain waveform, etc.) are *** model predicts some intrinsic vibration modes of electromagnetic radiation on the neuronal *** frequency range of these vibration modes is in the thz and far-infrared ranges.

关键词： Neuron thz Infrared Neuron signal generation and conduction Ion oscillation