Optical logic element and optical logic device

Optical mass storage system and memory cell incorporated therein

Optical memories using electron trapping material

Optical memory apparatus using first and second illuminating lig

Optical memory cell

Optical memory device incorporating photodetector devices and li

Optical memory playback apparatus

Optical memory system and method of using the same

Optical memory with fiber optic light guide

Optical memory with storage in three dimensions

Optical random access memory

Optical random access memory

Optical recording device

Optical recording device enploying doped crystal for optically s

Optical recording material containing photochromic compounds

Optical recording medium

Optical recording medium having a liquid crystal layer

Optical recording system

Optical storage apparatus including a reversible, doping modulat

Optical storage medium and storage process