Flat Engineered Multichannel Reflectors

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Flat Engineered Multichannel Reflectors. / Asadchy, V. S.; Diaz-Rubio, A.; Tcvetkova, S. N.; Kwon, D. -H.; Elsakka, Amr A.; Albooyeh, M.; Tretyakov, S. A.

julkaisussa: Physical Review X, Vuosikerta 7, Nro 3, 031046, 14.09.2017.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Asadchy, V. S. ; Diaz-Rubio, A. ; Tcvetkova, S. N. ; Kwon, D. -H. ; Elsakka, Amr A. ; Albooyeh, M. ; Tretyakov, S. A. / Flat Engineered Multichannel Reflectors. Julkaisussa: Physical Review X. 2017 ; Vuosikerta 7, Nro 3.

Bibtex - Lataa

@article{4fc783966efa41989eba9b2ed73d14af,
title = "Flat Engineered Multichannel Reflectors",
abstract = "Recent advances in engineered gradient metasurfaces have enabled unprecedented opportunities for light manipulation using optically thin sheets, such as anomalous refraction, reflection, or focusing of an incident beam. Here, we introduce a concept of multichannel functional metasurfaces, which are able to control incoming and outgoing waves in a number of propagation directions simultaneously. In particular, we reveal a possibility to engineer multichannel reflectors. Under the assumption of reciprocity and energy conservation, we find that there exist three basic functionalities of such reflectors: specular, anomalous, and retroreflections. Multichannel response of a general flat reflector can be described by a combination of these functionalities. To demonstrate the potential of the introduced concept, we design and experimentally test three different multichannel reflectors: three- and five-channel retroreflectors and a three- channel power splitter. Furthermore, by extending the concept to reflectors supporting higher-order Floquet harmonics, we forecast the emergence of other multichannel flat devices, such as isolating mirrors, complex splitters, and multi-functional gratings.",
keywords = "BAND ANOMALOUS REFLECTION, BROAD-BAND, GRADIENT METASURFACES, WIDE-ANGLE, LIGHT, METAMATERIALS, SURFACES, GRATINGS, MIRRORS",
author = "Asadchy, {V. S.} and A. Diaz-Rubio and Tcvetkova, {S. N.} and Kwon, {D. -H.} and Elsakka, {Amr A.} and M. Albooyeh and Tretyakov, {S. A.}",
year = "2017",
month = "9",
day = "14",
doi = "10.1103/PhysRevX.7.031046",
language = "English",
volume = "7",
journal = "Physical Review X",
issn = "2160-3308",
publisher = "American Physical Society",
number = "3",

}

RIS - Lataa

TY - JOUR

T1 - Flat Engineered Multichannel Reflectors

AU - Asadchy, V. S.

AU - Diaz-Rubio, A.

AU - Tcvetkova, S. N.

AU - Kwon, D. -H.

AU - Elsakka, Amr A.

AU - Albooyeh, M.

AU - Tretyakov, S. A.

PY - 2017/9/14

Y1 - 2017/9/14

N2 - Recent advances in engineered gradient metasurfaces have enabled unprecedented opportunities for light manipulation using optically thin sheets, such as anomalous refraction, reflection, or focusing of an incident beam. Here, we introduce a concept of multichannel functional metasurfaces, which are able to control incoming and outgoing waves in a number of propagation directions simultaneously. In particular, we reveal a possibility to engineer multichannel reflectors. Under the assumption of reciprocity and energy conservation, we find that there exist three basic functionalities of such reflectors: specular, anomalous, and retroreflections. Multichannel response of a general flat reflector can be described by a combination of these functionalities. To demonstrate the potential of the introduced concept, we design and experimentally test three different multichannel reflectors: three- and five-channel retroreflectors and a three- channel power splitter. Furthermore, by extending the concept to reflectors supporting higher-order Floquet harmonics, we forecast the emergence of other multichannel flat devices, such as isolating mirrors, complex splitters, and multi-functional gratings.

AB - Recent advances in engineered gradient metasurfaces have enabled unprecedented opportunities for light manipulation using optically thin sheets, such as anomalous refraction, reflection, or focusing of an incident beam. Here, we introduce a concept of multichannel functional metasurfaces, which are able to control incoming and outgoing waves in a number of propagation directions simultaneously. In particular, we reveal a possibility to engineer multichannel reflectors. Under the assumption of reciprocity and energy conservation, we find that there exist three basic functionalities of such reflectors: specular, anomalous, and retroreflections. Multichannel response of a general flat reflector can be described by a combination of these functionalities. To demonstrate the potential of the introduced concept, we design and experimentally test three different multichannel reflectors: three- and five-channel retroreflectors and a three- channel power splitter. Furthermore, by extending the concept to reflectors supporting higher-order Floquet harmonics, we forecast the emergence of other multichannel flat devices, such as isolating mirrors, complex splitters, and multi-functional gratings.

KW - BAND ANOMALOUS REFLECTION

KW - BROAD-BAND

KW - GRADIENT METASURFACES

KW - WIDE-ANGLE

KW - LIGHT

KW - METAMATERIALS

KW - SURFACES

KW - GRATINGS

KW - MIRRORS

U2 - 10.1103/PhysRevX.7.031046

DO - 10.1103/PhysRevX.7.031046

M3 - Article

VL - 7

JO - Physical Review X

JF - Physical Review X

SN - 2160-3308

IS - 3

M1 - 031046

ER -

ID: 15328197