Title :
Materials and systems for two photon 3-D ROM devices
Author :
Dvornikov, Alexander S. ; Cokgor, Ilkan ; Wang, Mark ; McCormick, Frederick B., Jr. ; Esener, Sadik C. ; Rentzepis, Peter M.
Author_Institution :
Call/Recall Inc., San Diego, CA, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
The methods and systems used for storing and accessing information in three dimensions by means of two-photon absorption are described. The materials into which the information is stored are organic molecules dispersed in polymer matrices, which change structure and spectra after absorption of light. The writing and accessing of the information can be performed either bit-by-bit or in a two-dimensional (2-D) multibit plane format. Automated recording and readout three-dimensional (3-D) systems have been constructed and characterized. Channel error sources have been identified, and a custom spatial bit-error-rate test has been developed
Keywords :
optical storage; photochromism; read-only storage; two-photon processes; accessing; automated recording; channel error sources; multibit plane format; organic molecules; parallel access optical memory; photochromic materials; polymer matrices; spatial bit-error-rate test; two photon 3D ROM devices; two-photon absorption; volume optical memory; Absorption; High speed optical techniques; Holographic optical components; Holography; Nonlinear optics; Optical interconnections; Optical materials; Optical recording; Read only memory; Two dimensional displays;
Journal_Title :
Components, Packaging, and Manufacturing Technology, Part A, IEEE Transactions on
