BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Asia/Hong_Kong BEGIN:STANDARD DTSTART:19791021T023000 TZOFFSETFROM:+0900 TZOFFSETTO:+0800 TZNAME:HKT END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20221028T060848Z UID:31B9B81B-C864-4FA2-ABF0-37DA4374DD01 DTSTART;TZID=Asia/Hong_Kong:20221028T100000 DTEND;TZID=Asia/Hong_Kong:20221028T110000 DESCRIPTION:IEEE MTT Distinguished Microwave Lecture\n\nExtreme Field Contr ol with Electromagnetic Metasurfaces\n\nProfessor Anthony Grbic\n\nDept. o f EECS\, University of Michigan\, Ann Arbor\n\nDate : 28 October 2022 (Fri day)\nTime : 10:00 am – 11:00 am (UTC+08:00) Hong Kong\nVenue : Online\n Registration : https://events.vtools.ieee.org/event/register/328525\n\nThe research area of metamaterials has captured the imagination of scientists and engineers over the past two decades by allowing unprecedented control of electromagnetic fields. The extreme manipulation of fields has been ma de possible by the fine spatial control and wide range of material propert ies that can be attained through subwavelength structuring. Research in th is area has resulted in devices which overcome the diffraction limit\, ren der objects invisible\, and even break time reversal symmetry. It has also led to flattened and conformal optical systems and ultra-thin antennas. T his seminar will identify recent advances in the growing area of metamater ials\, with a focus on metasurfaces: two dimensional metamaterials. The ta lk will explain what they are\, the promise they hold\, and how these fiel d-transforming surfaces are forcing the rethinking of electromagnetic/opti cal design.\n\nElectromagnetic metasurfaces are finely patterned surfaces whose intricate patterns/textures dictate their electromagnetic properties . Conventional field-shaping devices\, such as lenses in prescription eye glasses or a magnifying glass\, require thickness (propagation length) to manipulate electromagnetic waves through interference. In contrast\, metas urfaces manipulate electromagnetic waves across negligible thicknesses thr ough surface interactions\, by impressing abrupt phase and amplitude disco ntinuities onto a wavefront. The role of the visible (propagating) and inv isible (evanescent) spectrum in establishing these discontinuities will be explained. In addition\, it will be shown how metasurfaces allow the comp lete transformation of fields across a boundary\, and how this unique prop erty is driving a new generation of ultra-compact electromagnetic and opti cal devices with unparalleled field control. Metasurfaces will be describe d that exhibit various field tailoring capabilities including multiwavelen gth and multifunctional performances and extreme field shaping. In additio n\, metasurfaces with multi-input to multi-output capabilities will be pre sented that open new opportunities in adaptive and trainable designs.\n\nV irtual: https://events.vtools.ieee.org/m/328525 LOCATION:Virtual: https://events.vtools.ieee.org/m/328525 ORGANIZER:alex.mh.wong@cityu.edu.hk SEQUENCE:6 SUMMARY:Seminar: Extreme Field Control with Electromagnetic Metasurfaces URL;VALUE=URI:https://events.vtools.ieee.org/m/328525 X-ALT-DESC:Description: <br /><p><span style="font-size: 14pt\;"><strong><s pan style="color: #34495e\;">IEEE MTT Distinguished Microwave Lecture</spa n></strong></span></p>\n<p><span style="font-size: 18pt\; color: #3598db\; "><strong>Extreme Field Control with Electromagnetic Metasurfaces</strong> </span></p>\n<p><strong>Professor Anthony Grbic</strong></p>\n<p><strong>D ept. of EECS\, University of Michigan\, Ann Arbor</strong></p>\n<p><strong >Date &nbsp\; &nbsp\;: &nbsp\; &nbsp\;28 October 2022 (Friday)<br />Time & nbsp\; &nbsp\;: &nbsp\; &nbsp\;10:00 am &ndash\; 11:00 am (UTC+08:00) Hong Kong<br />Venue &nbsp\; &nbsp\;: &nbsp\; &nbsp\;Online<br />Registration &nbsp\; &nbsp\;: &nbsp\; <a href="https://events.vtools.ieee.org/event/reg ister/328525">https://events.vtools.ieee.org/event/register/328525</a>&nbs p\;</strong></p>\n<p>The research area of metamaterials has captured the i magination of scientists and engineers over the past two decades by allowi ng unprecedented control of electromagnetic fields. The extreme manipulati on of fields has been made possible by the fine spatial control and wide r ange of material properties that can be attained through subwavelength str ucturing.&nbsp\;&nbsp\; Research in this area has resulted in devices whic h overcome the diffraction limit\, render objects invisible\, and even bre ak time reversal symmetry. It has also led to flattened and conformal opti cal systems and ultra-thin antennas.&nbsp\; This seminar will identify rec ent advances in the growing area of metamaterials\, with a focus on metasu rfaces: two dimensional metamaterials. The talk will explain what they are \, the promise they hold\, and how these field-transforming surfaces are f orcing the rethinking of electromagnetic/optical design.</p>\n<p>Electroma gnetic metasurfaces are finely patterned surfaces whose intricate patterns /textures dictate their electromagnetic properties. Conventional field-sha ping devices\, such as lenses in prescription eye glasses or a magnifying glass\, require thickness (propagation length) to manipulate electromagnet ic waves through interference. In contrast\, metasurfaces manipulate elect romagnetic waves across negligible thicknesses through surface interaction s\, by impressing abrupt phase and amplitude discontinuities onto a wavefr ont. The role of the visible (propagating) and invisible (evanescent) spec trum in establishing these discontinuities will be explained. In addition\ , it will be shown how metasurfaces allow the complete transformation of f ields across a boundary\, and how this unique property is driving a new ge neration of ultra-compact electromagnetic and optical devices with unparal leled field control.&nbsp\; Metasurfaces will be described that exhibit va rious field tailoring capabilities including multiwavelength and multifunc tional performances and extreme field shaping. In addition\, metasurfaces with multi-input to multi-output capabilities will be presented that open new opportunities in adaptive and trainable designs.</p> END:VEVENT END:VCALENDAR