Related Experiment Video
Updated: Jun 16, 2026

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
Published on: January 14, 2020
Storage density limitation of a volume-type hologram memory: theory
Abstract:
The maximum storage density of a volume-type hologram memory obtainable with a prescribed signal-to-noise ratio is discussed. In the theoretical analysis, a microscopic particle model of a phase hologram is considered; the refractive index variation is assumed to be caused by the density variation of bleached silver particles distributed spatially at random. The signal and noise intensities are derived from the analysis based upon this model. The theoretical limit of the storage density and the optimum hologram thickness are then derived in terms of the signal-to-noise ratio. The maximum storage density is finally given as a function of the average scattering cross section of the particles, the light wavelength, and the prescribed signal-to-noise ratio. Some practical cases are also discussed on the basis of measured material parameters.
Related Concept Videos
Buffers: Buffer Capacity
In the graph, pH is plotted as a function of the number of moles of base (Cb) added to a weak acid...
Lagrange Multipliers: Problem Solving
Storage
Understanding Memory
Crystal Density
Chunking and Rehearsal in Sensory Memory

