Asymmetric Metasurfaces with High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math> Resonances...

Abstract

We reveal that metasurfaces created by seemingly different lattices of (dielectric or metallic) meta-atoms with broken in-plane symmetry can support sharp high-Q resonances arising from a distortion of symmetry-protected bound states in the continuum. We develop a rigorous theory of such asymmetric periodic structures and demonstrate a link between the bound states in the continuum and Fano resonances. Our results suggest the way for smart engineering of resonances in metasurfaces for many applications in nanophotonics and metaoptics.

Keywords

PhysicsBound stateFano planeUpper and lower boundsSymmetry (geometry)DielectricQuantum mechanicsGeometryMathematical analysisMathematics

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Publication Info

Year: 2018
Type: article
Volume: 121
Issue: 19
Pages: 193903-193903
Citations: 1710
Access: Closed

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Asymmetric Metasurfaces with High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math> Resonances Governed by Bound States in the Continuum

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APA Style

                            
                                
                                    Kirill Koshelev, 
                                
                                    Sergey Lepeshov, 
                                
                                    Mingkai Liu
                                
                                et al.
                            
                            (2018). 
                            Asymmetric Metasurfaces with High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math> Resonances Governed by Bound States in the Continuum. 
                            Physical Review Letters
                            , 121
                            (19)
                            , 193903-193903.
                            https://doi.org/10.1103/physrevlett.121.193903
                        

Identifiers

DOI: 10.1103/physrevlett.121.193903
PMID: 30468599
arXiv: 1809.00330

Data Quality

Data completeness: 88%