Purple membrane-polyacrilamide films as holographic recording materials

Digital Holographic Recording in Amorphous Chalcogenide Films

New recording materials for the holographic industry

This paper describes a new class of recording materials for volume holographic applications suitable to meet commercial manufacturing needs. These next-generation holographic photopolymers have the ability to satisfy the unmet demand for color and depth tuning that is only possible with volume holograms. Unlike earlier holographic photopolymers, these new materials offer the advantages of no ch...

Holographic Recording in Amorphous Chalcogenide Semiconductor Thin Films

Two-center holographic recording

We describe a two-center holographic recording method for the storage of persistent holograms in doubly doped lithium niobate crystals. We use a two-center model, and we show that our experimental observations can be explained by the model. We describe experimental methods for finding the unknown material parameters of LiNbO3 :Fe:Mn crystals for the two-center model, and we discuss the optimiza...

Holographic memory with localized recording.

We experimentally demonstrate and characterize a memory module that features selective page erasure and readout persistence using the localized recording method in doubly doped LiNbO(3). Pages of information can be selectively erased without partially erasing the whole memory. Data pages can be written over erased pages multiple times. Information is read millions of times before refreshing is ...