Dynamic non-reciprocal meta-surfaces with arbitrary phase reconfigurability based on photonic transition in meta-atoms

We introduce a distinct class of dynamic non-reciprocal meta-surfaces with arbitrary phase-reconfigurability. This meta-surface consists of an array of meta-atoms, each of which is subject to temporal refractive index modulation, which induces photonic transitions between the states of the meta-atom...

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Bibliographic Details
Published inApplied physics letters Vol. 108; no. 2
Main Authors Shi, Yu, Fan, Shanhui
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 11.01.2016
Subjects
Applied physics
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Indexing
MAGNETO-OPTICAL EFFECTS
MODULATION
Photonics
REFRACTIVE INDEX
Refractivity
SURFACES
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Summary:We introduce a distinct class of dynamic non-reciprocal meta-surfaces with arbitrary phase-reconfigurability. This meta-surface consists of an array of meta-atoms, each of which is subject to temporal refractive index modulation, which induces photonic transitions between the states of the meta-atom. We show that arbitrary phase profile for the outgoing wave can be achieved by controlling the phase of the modulation at each meta-atom. Moreover, such dynamic meta-surfaces exhibit non-reciprocal response without the need for magneto-optical effects. The use of photonic transition significantly enhances the tunability and the possible functionalities of meta-surfaces.
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ISSN:0003-6951
1077-3118
DOI:10.1063/1.4939915