Title :
Parity-time (PT) symmetric topological interface states
Author :
Weimann, Steffen ; Rechtsman, Mikael C. ; Plotnik, Yonatan ; Lumer, Yaakov ; Makris, Konstantinos G. ; Segev, Mordechai ; Szameit, Alexander
Author_Institution :
Abbe Center of Photonics, Friedrich-Schiller-Univ. Jena, Jena, Germany
Abstract :
We demonstrate theoretically and experimentally topological interface states in a passive effective PT-symmetric dimerized waveguide array. The PT-symmetric system has unbroken PT symmetry: all eigenvalues in the spectrum are real, despite the system´s non-Hermiticity.
Keywords :
interface states; optical arrays; optical waveguides; topological insulators; eigenvalues; nonHermiticity; parity-time symmetric topological interface states; passive effective PT-symmetric dimerized waveguide array; unbroken PT symmetry; Arrays; Eigenvalues and eigenfunctions; Image edge detection; Interface states; Lattices; Optical waveguides; Photonics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
