Talbot Effect of orbital angular momentum lattices with single photons
Abstract
The self-imaging, or Talbot Effect, that occurs with the propagation of periodically structured waves has enabled several unique applications in optical metrology, image processing, data transmission, and matter-wave interferometry. In this work, we report on the first demonstration of a Talbot Effect with single photons prepared in a lattice of orbital angular momentum (OAM) states. We observe that upon propagation, the wavefronts of the single photons manifest self-imaging whereby the OAM lattice intensity profile is recovered. Furthermore, we show that the intensity at fractional Talbot distances is indicative of a periodic helical phase structure corresponding to a lattice of OAM states. This phenomenon is a powerful addition to the toolbox of orbital angular momentum and spin-orbit techniques that have already enabled many recent developments in quantum optics.
Keywords
Cite
@article{arxiv.1908.01016,
title = {Talbot Effect of orbital angular momentum lattices with single photons},
author = {Sacha Schwarz and Connor Kapahi and Ruoxuan Xu and Andrew R. Cameron and Dusan Sarenac and Jean-Philippe W. MacLean and Katanya B. Kuntz and David G. Cory and Thomas Jennewein and Kevin J. Resch and Dmitry A. Pushin},
journal= {arXiv preprint arXiv:1908.01016},
year = {2020}
}
Comments
6 pages, 3 figures, 1 table