Volume holography with Bessel-like reference beams

• Main Authors: Guerrero, Raphael A, Manigo, Jonathan P
• Format: text
• Published: Archīum Ateneo 2015
• Subjects: Bessel beams; Holography; Volume holography; Crystals; Wave propagation; Beam propagation method; Holograms; Laser crystals; Modulation; Refractive index; Optics; Physics
• Online Access: https://archium.ateneo.edu/physics-faculty-pubs/2; https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9587/95870H/Volume-holography-with-Bessel-like-reference-beams/10.1117/12.2187813.short
• Institution: Ateneo De Manila University

We report volume holographic recording and reconstruction of plane waves using Bessel-like reference beams. A photorefractive lithium niobate crystal (0.05% Fe:LiNbO3) is employed as the holographic medium in a two-wave mixing set-up. The reconstructed plane wave has the same appearance as a Bessel beam, displaying a central maximum and concentric rings. Over a propagation range of 10 to 50 cm, the central intensity is observed to oscillate between maximum and zero intensity. The holographic reconstruction is capable of self-healing and propagation properties are preserved even with the use of a partially blocked readout beam. A theoretical framework based on the interference of a plane wave and a Bessel beam simultaneously reconstructed from a volume hologram is able to describe our experimental results.