Functional metamirrors using bianisotropic elements

Physical Review Letters
V S AsadchyS A Tretyakov

Abstract

Conventional mirrors obey the simple reflection law that a plane wave is reflected as a plane wave, at the same angle. To engineer spatial distributions of fields reflected from a mirror, one can either shape the reflector or position some phase-correcting elements on top of a mirror surface. Here we show, both theoretically and experimentally, that full-power reflection with general control over the reflected wave phase is possible with a single-layer array of deeply subwavelength inclusions. These proposed artificial surfaces, metamirrors, provide various functions of shaped or nonuniform reflectors without utilizing any mirror. This can be achieved only if the forward and backward scattering of the inclusions in the array can be engineered independently, and we prove that it is possible using electrically and magnetically polarizable inclusions. The proposed subwavelength inclusions possess desired reflecting properties at the operational frequency band, while at other frequencies the array is practically transparent. The metamirror concept leads to a variety of applications over the entire electromagnetic spectrum, such as optically transparent focusing antennas for satellites, multifrequency reflector antennas for radio as...Continue Reading

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Citations

Aug 22, 2017·Reports on Progress in Physics·Fei DingSergey I Bozhevolnyi
Jul 29, 2015·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·S A Tretyakov
Feb 7, 2017·Reports on Progress in Physics·Francesco Monticone, Andrea Alù
Mar 5, 2016·Scientific Reports·Dmitry MarkovichPavel Ginzburg
Feb 6, 2017·Scientific Reports·X ZhangS N Zhu
Sep 28, 2017·Physical Review Letters·Younes Ra'diAndrea Alù
Sep 11, 2019·Applied Optics·Abbas Ghasempour Ardakani, Khatereh Moradi
Jul 24, 2020·Advanced Materials·Ziying ZhangAndrea Alù
Jan 5, 2019·Physical Review Letters·Xuchen WangSergei A Tretyakov
Feb 23, 2019·Science Advances·Ana Díaz-RubioSergei A Tretyakov
Aug 27, 2016·Physical Review Letters·Carl Pfeiffer, Anthony Grbic
Apr 7, 2021·Optics Express·Guillaume Lavigne, Christophe Caloz
Oct 20, 2020·ACS Omega·Prasun BanerjeeKadiyala Chandra Babu Naidu
Mar 30, 2018·ACS Photonics·Odysseas TsilipakosCostas M Soukoulis
Jul 13, 2019·ACS Applied Materials & Interfaces·Kuang ZhangQun Wu
Sep 15, 2021·ACS Applied Materials & Interfaces·Yijia HuangLing Li

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