Beam Cleanup and Image Restoration with a Photorefractive Polymeric Composite
We demonstrate, for the first time to our knowledge, the use of a photorefractive polymeric composite to clean a phase-distorted laser beam and reconstruct a badly distorted image. Advantageous qualities including relatively high figures of merit, ease of processability, and low cost make this class of materials attractive when compared with their inorganic crystalline counterparts. In addition, we used four-wave-mixing and holographic techniques to obtain an internal diffraction efficiency of ∼31% at 54.5 V/μm and a two-beam-coupling gain coefficient of F = 17 cm -1 at 54.5 V/p.m under our experimental conditions. © 2004 Optical Society of America.
J. G. Winiarz and F. Ghebremichael, "Beam Cleanup and Image Restoration with a Photorefractive Polymeric Composite," Applied Optics, vol. 43, no. 15, pp. 3166-3170, Optical Society of American, May 2004.
The definitive version is available at https://doi.org/10.1364/AO.43.003166
Keywords and Phrases
Chromophores; Composite materials; Electromagnetic wave diffraction; Glass transition; Holography; Image reconstruction; Laser beams; Optical beam splitters; Optical resolving power; Refractive index; Beam-coupling ratio; Optical amplification; Phase-aberrated laser beam; Steady-state diffraction efficiency; Photorefractive materials
International Standard Serial Number (ISSN)
Article - Journal
© 2004 Optical Society of American, All rights reserved.