Propagation properties of truncated Bessel beams retrieved from volume holograms

Abstract

Truncated Bessel Beams are vertically or horizontally half-blocked Bessel beams generated by obstructing half of the intensity profile. We report the storage of such beams in a photorefractive LiNbO₃ crystal via volume holography. Captured images show that a truncated Bessel beam reconstructed from a volume hologram exhibits non-diffraction up to an average distance of 70 cm. The reconstructed half-blocked Bessel beam demonstrates self-reconstruction after encountering an obstacle. Furthermore, we observe its capability to recover the pre-blocked intensity profile of the central maximum, although to a lesser extent compared to a complete Bessel beam.