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

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4939915· OSTI ID:22489276
;  [1]
  1. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States)

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.

OSTI ID:
22489276
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 108; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English

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