Abstract
We present the first experimental observation of accelerating beams in curved space. More specifically, we demonstrate, experimentally and theoretically, shape-preserving accelerating beams propagating on spherical surfaces: closed-form solutions of the wave equation manifesting nongeodesic self-similar evolution. Unlike accelerating beams in flat space, these wave packets change their acceleration trajectory due to the interplay between interference effects and the space curvature, and they focus and defocus periodically due to the spatial curvature of the medium in which they propagate.
| Original language | English |
|---|---|
| Article number | 011001 |
| Journal | Physical Review X |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - 4 Jan 2018 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 authors. Published by the American Physical Society.