Title :
Bulk optical measurement of topological numbers in photonic lattices with a non-Hermitian system
Author :
Zeuner, Julia M. ; Rechtsman, Mikael C. ; Lumer, Yaakov ; Plotnik, Yonatan ; Nolte, S. ; Segev, Mordechai ; Szameit, A.
Author_Institution :
Inst. of Appl. Phys., Friedrich Schiller Univ. Jena, Jena, Germany
Abstract :
Topological insulators have been recently extended to photonics; however, the measurement of their topological invariant has been limited to probing edge states, an indirect measure. Here we optically measure a topological invariant using only bulk information.
Keywords :
optical lattices; optical variables measurement; topological insulators; bulk information; bulk optical measurement; edge states; nonHermitian system; photonic lattices; topological insulators; topological invariant; topological numbers; Lattices; Optical surface waves; Optical variables measurement; Optical waveguides; Photonics; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
