TY  - JOUR
EP  - 4284
AV  - public
Y1  - 2016/09/15/
TI  - Topological surface plasmons in superlattices with changing sign of the average permittivity
PB  - OPTICAL SOC AMER
ID  - discovery10055779
N2  - We address the topological properties of onedimensional
plasmonic superlattices composed of
alternating metallic and dielectric layers. We reveal
that the Zak phase of such plasmonic lattices is determined
by the sign of the spatial average of their
permittivity, ¯#, and as such the topology and their
associated interfacial (edge) states are extremely robust
against structural disorder. Our study shows that the
topologically protected interfacial modes occurring at
the interface between two plasmonic lattices with opposite
sign of ¯# can be viewed as the generalization of
the conventional surface plasmon polaritons existing
at metallic-dielectric interfaces.
SP  - 4281
VL  - 41
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
IS  - 18
SN  - 1539-4794
UR  - https://doi.org/10.1364/OL.41.004281
A1  - Deng, H
A1  - Chen, X
A1  - Panoiu, NC
A1  - Ye, F
JF  - Optics Letters
ER  -