Electric field selective optical data storage using persistent spectral hole burning

Abstract

The electric field domain is used as a storage dimension in optical data storage by persistent spectral hole burning. The memory locations in the electric field domain are addressed with the voltage applied to the sample consisting of the amorphous polymer polyvinyl-butyral doped with the dye 9-amino acridine. The information is written by burning spectral holes at different electric field strengths with a HeCd laser and read by detecting the presence or absence of holes with weak laser intensity.