The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We show that introducing asymmetric coupling can force all the modes of a waveguide lattice to localize, except for one topologically protected “edge-state” which becomes extended. This mode has real eigenvalues and retains topological properties.
We propose a new class of photonic topological insulators, for which we use synthetic dimensions to induce topologically-protected photonic propagation in the bulk of the lattice instead of around the edge.
We present topological photonics in curved space. We use 1D waveguide lattices on curved surfaces, and show that the curvature of the surface induces topological phase transfer dynamics, Thouless pumping, localization and delocalization of waves.
We present the first study on the interplay between lattice wave dynamics and curved space. We demonstrate Bloch oscillations and dynamic localization induced by space curvature, for configurations which in flat-space show only discrete diffraction.