Two Plenary Lectures

 

Breaking Lorentz Reciprocity Using Metamaterials

Andrea Alù (CUNY Advanced Science Research Center, Photonics Initiative, 85 St. Nicholas Terrace, New York, NY 10031, U.S.A.) 

Abstract

In this talk, I discuss our recent research activity in electromagnetics, nano-optics and acoustics, showing how tailored meta-atoms and suitable arrangements of them open exciting venues to realize non-reciprocal devices for light, radio-waves and sound, largely breaking Lorentz reciprocity and realize isolation without the need of a magnetic bias. Our approaches are based on using suitably tailored mechanical motion, spatio-temporal modulation, and nonlinearities in coupled resonator systems, and have enabled magnet-free circulators and isolators for sound, microwaves, THz and optical frequencies, non-reciprocal antennas, emitters and absorbers breaking Kirchhoff’s law, self-induced isolation for high-intensities triggered by nonlinearities, and a new generation of non-reciprocal topological insulators for light, sound, and static systems in mechanics. In the talk, I will also discuss the impact of these concepts from basic science to practical technology, and some of their inherent limitations stemming from thermodynamics, specifically in the context of nonlinear isolators and of the delay-bandwidth limit.

 

Biography

Alù

Andrea Alù is the Founding Director and Einstein Professor at the Photonics Initiative, CUNY Advanced Science Research Center. He received his Laurea (2001) and PhD (2007) from the University of Roma Tre, Italy, and, after a postdoc at the University of Pennsylvania, he joined the faculty of the University of Texas at Austin in 2009, where he was the Temple Foundation Endowed Professor until Jan. 2018. Dr. Alù is a Fellow of IEEE, OSA, SPIE and APS, and he currently serves as IEEE AP-S Distinguished Lecturer and AdCom member. He has received several scientific awards, including the ICO Prize in Optics (2016), the NSF Alan T. Waterman award (2015), the OSA Adolph Lomb Medal (2013), and the URSI Issac Koga Gold Medal (2011).

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Microwave Metantennas: Wave Control using Metamaterials, Metasurfaces, and Metalines

Zhi Ning Chen (Space and Atmospheric Physics Group, University of Adelaide, Australia)

Abstract

The physical concepts of metamaterials have revolutionarily reshaped electromagnetic research from microwave, terahertz to optics since later 1990s. With more and more exciting scientific findings, the next wave of metamaterials is to fuel the innovation of electromagnetic engineering for applications. In particular, the metamaterials is expected to spur the development of innovative antenna technology to meet the fast increasing demands in the market of wireless communications and radars. This talk will brief the unique electromagnetic properties. Then the unique changes of antenna design will be addressed. After that the development of metamaterial-based antenna technologies will be reviewed with the success stories of translational research of metamaterials, metasurfaces and metalines by speaker’s team. Last speaker will comment on the development of metantennas in future.

 

Biography

 

Chen

Zhi Ning Chen received his BEng, MEng, and PhD degrees all in Electrical Engineering from the Institute of Communications Engineering (ICE), China and his second PhD degree from the University of Tsukuba, Japan, respectively.
During 1988~1995, he worked as a Lecturer and later an Associate Professor at ICE as well as a Postdoctoral Fellow and later an Associate Professor at Southeast University, China. During 1995~1997, he joined the City University of Hong Kong as a Research Assistant and later a Research Fellow. In 1997, he was awarded the Japan Society for the Promotion of Science (JSPS) Fellowship to conduct his research at the University of Tsukuba, Japan. In 2001 and 2004, he visited the University of Tsukuba under the JSPS Fellowship Program (at a senior level). In 2004, he worked as an Academic Visitor at IBM T. J. Watson Research Center, USA. In 2013, he visited “Laboratoire des SignauxetSystèmes”, UMR8506 CNRS-Supelec-University Paris Sud in Gif-sur-Yvette, France as a Senior DIGITEO Guest Scientist.

During 1999~2016, he worked with the Institute for Infocomm Research (I2R) as Principal Scientist, Head for RF & Optical Department, and Technical Advisor. In 2012, he joined the Department of Electrical and Computer Engineering, National University of Singapore as a tenured Full Professor and now Program Director (Industry). He is holding/held the concurrent guest professorships at Southeast University (Changjiang Chair Professor), Nanjing University, Tsinghua University, Shanghai Jiaotong University, Tongji University, University of Science and Technology of China, Fudan University  Dalian Maritime University, Chiba University, National Taiwan University of Science and Technology, Shanghai University, Beijing University of Posts and Telecommunications, Tohoku University, Beijing Institute of Technology,  and City University of Hong Kong. He is also serving as the members of State Key Laboratory of Millimeter-waves at Southeast University and City University of Hong Kong.

Dr Chen is the founding General Chairs of International Workshop on Antenna Technology (iWAT in 2005), International Symposium on InfoComm & Mechatronics Technology in Bio-Medical & Healthcare Application (IS 3Tin3A in 2010), International Microwave Forum (IMWF in 2010), and Asia-Pacific Conference on Antennas and Propagation (APCAP in 2012). He also involved many international events as General Chairs, Chairs and members for technical program committees and international advisory committees. He has been invited to deliver 80+ keynote/plenary/invited speeches at international academic and industry events.
Currently Dr Chen is interested in electromagnetic engineering and antennas/sensors for communication, radar, imaging and sensing systems. He has published 610+ academic papers and five books entitled Broadband Planar Antennas (Wiley 2005), UWB Wireless Communication (Wiley 2006), Antennas for Portable Devices (Wiley 2007), Antennas for Base Stations in Wireless Communications (McGraw-Hill 2009), and Handbook of Antenna Technologies with 76 chapters (by Springer References in 2016 as an Editor-in-Chief). He has also contributed the chapters to the books entitled UWB Antennas and Propagation for Communications, Radar, and Imaging (Wiley 2006), Antenna Engineering Handbook (McGraw-Hill 2007), Microstrip and Printed Antennas (Wiley 2010), and Electromagnetics of Body Area Networks (Wiley 2016). He is holding 27 granted/ filed patents with 38 licensed deals with industry. He is the recipient of International Symposium on Antennas and Propagation Best Paper Award 2010, the CST University Publication Awards 2008 & 2015, ASEAN Outstanding Engineering Achievement Award 2013, Institution of Engineers Singapore Prestigious Engineering Achievement Awards 2006, 2013(two project awards), and 2014, I2R Quarterly Best Paper Award 2004, IEEE iWAT 2005 Best Poster Award, several technology achievement awards from China during 1990-1997 as well as more than 21 academic awards by the students he supervised.
Dr Chen elevated a Fellow of the IEEE for the contribution to small and broadband antennas for wireless applications in 2007. He has served IEEE Council on RFID as a Vice President and a Distinguished Lecturer since 2015. He severed IEEE Transaction on Antennas and Propagation as an Associate Editor and IEEE Antennas and Propagation Society as a Distinguished Lecturer.

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