The size distribution of a particle field hologram is obtained with a Fourier transformation of the Fraunhofer diffraction pattern of the reconstructed hologram. Off-axis absorption holograms of particle fields with known characteristics were obtained and analyzed with a commercially available instrument. The mean particle size of the reconstructed hologram was mea-sured with an error of ±5%, while the distribution broadening was estimated within ±15%. Small sections of a pulsed laser hologram of a synthetic fuel spray were analyzed with this method, thus yielding a spatially resolved size distribution. The method yields fast and accurate automated analysis of particle field holograms.
Cecil F. Hess,
James D. Trolinger,
"Panicle Field Holography Data Reduction By Fourier Transform Analysis," Optical Engineering 24(3), 243470 (1 June 1985). https://doi.org/10.1117/12.7973509