Wavefront shaping through emulated curved space in waveguide settings

0Citations
Citations of this article
54Readers
Mendeley users who have this article in their library.

Abstract

The past decade has witnessed remarkable progress in wavefront shaping, including shaping of beams in free space, of plasmonic wavepackets and of electronic wavefunctions. In all of these, the wavefront shaping was achieved by external means such as masks, gratings and reflection from metasurfaces. Here, we propose wavefront shaping by exploiting general relativity (GR) effects in waveguide settings. We demonstrate beam shaping within dielectric slab samples with predesigned refractive index varying so as to create curved space environment for light. We use this technique to construct very narrow non-diffracting beams and shape-invariant beams accelerating on arbitrary trajectories. Importantly, the beam transformations occur within a mere distance of 40 wavelengths, suggesting that GR can inspire any wavefront shaping in highly tight waveguide settings. In such settings, we demonstrate Einsteinâ € s Rings: A phenomenon dating back to 1936.

Cite

CITATION STYLE

APA

Sheng, C., Bekenstein, R., Liu, H., Zhu, S., & Segev, M. (2016). Wavefront shaping through emulated curved space in waveguide settings. Nature Communications, 7. https://doi.org/10.1038/ncomms10747

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free