High-performance and compact broadband terahertz plasmonic waveguide intersection
KAUST DepartmentMaterials Science and Engineering Program
Physical Sciences and Engineering (PSE) Division
KAUST Grant NumberCRF-2016-2950-CRG5
Online Publication Date2019-09-01
Print Publication Date2019-09-02
Permanent link to this recordhttp://hdl.handle.net/10754/656798
MetadataShow full item record
AbstractFor terahertz (THz) integrated systems, an intersection between waveguides is inevitable and is often accompanied by considerable crosstalk and loss. Here, we propose and experimentally demonstrate a novel type of crossing with a footprint less than 0.2 × 0.2 mm2 for THz surface plasmon polariton waveguiding. With an optimized crossover structure, the measured loss of the intersection is as low as 0.89 dB/crossing, and the crosstalk is less than-19.06 dB/crossing at 0.55 THz. The proposed crossing structure is compact and has low loss and crosstalk within a broad band, which will pave the way for a wide range of new applications for THz integrated systems.
CitationYuan, M., Li, Y., Lu, Y., Zhang, Y., Zhang, Z., Zhang, X., … Zhang, W. (2019). High-performance and compact broadband terahertz plasmonic waveguide intersection. Nanophotonics, 0(0). doi:10.1515/nanoph-2019-0191
SponsorsThe research reported in this publication was supported by the National Key Research and Development Program of China (grant no. 2017YFA0701004), the National Science Foundation of China (grant nos. 61875150, 61605143, 61735012, 61420106006, 61722509, and 61871212), the Tianjin Municipal Fund for Distinguished Young Scholars (grant no. 18JCJQJC45600), and King Abdullah University of Science and Technology (KAUST: CRF-2016-2950-CRG5).
Except where otherwise noted, this item's license is described as © 2019 Yanfeng Li, Xixiang Zhang, Jiaguang Han et al., published by De Gruyter, Berlin/Boston. This work is licensed under the Creative Commons Attribution 4.0 Public License. CCBY 4.0
Showing items related by title, author, creator and subject.
Unveiling of the energy storage mechanisms of multi -modified (Nb2O5@C)/rGO nanoarrays as anode for high voltage supercapacitors with formulated ionic liquid electrolytesZhang, Jiahe; Zhang, Haitao; Zhang, Yaqin; Zhang, Junwei; He, Hongyan; Zhang, Xixiang; Shim, Jae Jin; Zhang, Suojiang (Electrochimica Acta, Elsevier Ltd, 2019-04-29) [Article]A better understanding of the energy-storage mechanisms in complex pseudocapacitive nanostructures is essential to improve the performances of nanohybrid supercapacitors. In this study, highly interface modified Nb2O5 nanoarrays, attached to graphene nanosheets, were carefully designed and synthesized. The electrochemical performances were evaluated in an organic electrolyte, a formulated ionic-liquid mixture electrolyte, and a nanocomposite ionogel electrolyte, respectively. The capacitive and faradaic storage contributions were assessed qualitatively in diverse electrolytes at various temperatures. The capacitive contribution in the ionic liquid electrolyte was found to rise with increasing temperature. A molecular dynamics simulation proved that the increased diffusion coefficient of large ions was much more pronounced than that of the small Li+ ions. A carefully optimized quasi-solid-state lithium ion capacitor, fabricated using a (Nb2O5@C)/rGO nanoarchitecture as the anode and an ionic liquid gel separator, delivered an energy density of 101 Wh kg−1 and a power density of 24 kW kg−1 at 60 °C. The efficient coupling between the nanohybrids and a complex ionogel electrolyte opens a new window for the rational design of high energy-density supercapacitors.
The Visual Object Tracking VOT2017 Challenge ResultsKristan, Matej; Leonardis, Ales; Matas, Jiri; Felsberg, Michael; Pflugfelder, Roman; Zajc, Luka Cehovin; Vojir, Tomas; Hager, Gustav; Lukezic, Alan; Eldesokey, Abdelrahman; Fernandez, Gustavo; Garcia-Martin, Alvaro; Muhic, A.; Petrosino, Alfredo; Memarmoghadam, Alireza; Vedaldi, Andrea; Manzanera, Antoine; Tran, Antoine; Alatan, Aydin; Mocanu, Bogdan; Chen, Boyu; Huang, Chang; Xu, Changsheng; Sun, Chong; Du, Dalong; Zhang, David; Du, Dawei; Mishra, Deepak; Gundogdu, Erhan; Velasco-Salido, Erik; Khan, Fahad Shahbaz; Battistone, Francesco; Subrahmanyam, Gorthi R. K. Sai; Bhat, Goutam; Huang, Guan; Bastos, Guilherme; Seetharaman, Guna; Zhang, Hongliang; Li, Houqiang; Lu, Huchuan; Drummond, Isabela; Valmadre, Jack; Jeong, Jae-chan; Cho, Jae-il; Lee, Jae-Yeong; Noskova, Jana; Zhu, Jianke; Gao, Jin; Liu, Jingyu; Kim, Ji-Wan; Henriques, Joao F.; Martinez, Jose M.; Zhuang, Junfei; Xing, Junliang; Gao, Junyu; Chen, Kai; Palaniappan, Kannappan; Lebeda, Karel; Gao, Ke; Kitani, Kris M.; Zhang, Lei; Wang, Lijun; Yang, Lingxiao; Wen, Longyin; Bertinetto, Luca; Poostchi, Mahdieh; Danelljan, Martin; Müller, Matthias; Zhang, Mengdan; Yang, Ming-Hsuan; Xie, Nianhao; Wang, Ning; Miksik, Ondrej; Moallem, P.; M, Pallavi Venugopal; Senna, Pedro; Torr, Philip H. S.; Wang, Qiang; Yu, Qifeng; Huang, Qingming; Martin-Nieto, Rafael; Bowden, Richard; Liu, Risheng; Tapu, Ruxandra; Hadfield, Simon; Lyu, Siwei; Golodetz, Stuart; Choi, Sunglok; Zhang, Tianzhu; Zaharia, Titus; Santopietro, Vincenzo; Zou, Wei; Hu, Weiming; Tao, Wenbing; Li, Wenbo; Zhou, Wengang; Yu, Xianguo; Bian, Xiao; Li, Yang; Xing, Yifan; Fan, Yingruo; Zhu, Zheng; Zhang, Zhipeng; He, Zhiqun (2017 IEEE International Conference on Computer Vision Workshops (ICCVW), Institute of Electrical and Electronics Engineers (IEEE), 2018-01-22) [Conference Paper]The Visual Object Tracking challenge VOT2017 is the fifth annual tracker benchmarking activity organized by the VOT initiative. Results of 51 trackers are presented; many are state-of-the-art published at major computer vision conferences or journals in recent years. The evaluation included the standard VOT and other popular methodologies and a new 'real-time' experiment simulating a situation where a tracker processes images as if provided by a continuously running sensor. Performance of the tested trackers typically by far exceeds standard baselines. The source code for most of the trackers is publicly available from the VOT page. The VOT2017 goes beyond its predecessors by (i) improving the VOT public dataset and introducing a separate VOT2017 sequestered dataset, (ii) introducing a realtime tracking experiment and (iii) releasing a redesigned toolkit that supports complex experiments. The dataset, the evaluation kit and the results are publicly available at the challenge website1.
Bottom-up nanoarchitecture of semiconductor nano-building blocks by controllable in situ SEM-FIB thermal soldering methodZhang, Xuan; Zheng, Xiujun; Zhang, Hong; Zhang, Junli; Fu, Jiecai; Zhang, Qiang; Peng, Chaoyi; Bai, Feiming; Zhang, Xixiang; Peng, Yong (J. Mater. Chem. C, Royal Society of Chemistry (RSC), 2017-08-10) [Article]Here we demonstrate that the building blocks of semiconductor WO3 nanowires can be controllably soldered together by a novel nano-soldering technique of in situ SEM-FIB thermal soldering, in which the soldering temperature can precisely remain in an optimal range to avoid a strong thermal diffusion.