Two-photon 3-D optical memories (Invited Paper)

Sadik C. Esener, Peter M. Rentzepis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


Two-photon optical materials and the device architecture for a bit-oriented two-photon 3-D optical memory device are described. Unlike other schemes which have been proposed for 3- D optical memories such as the photorefractive effect (for holographic storage), spectral hole burning, and optical echo, the two-photon effect provides a means of storing data into separate bit locations throughout the entire volume without affecting the neighboring bit locations. In addition, the two-photon process has the benefits of high sensitivity, high speed, and the ability to work near room temperature. A 3-D memory based on the two-photon effect can achieve very high capacity as well as parallel access of up to 106 bits per memory access operation. Finally, the two-photon 3-D memory can potentially have a low cost per bit because the material it uses can be made as an inexpensive polymer. Preliminary experimental data is presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Number of pages4
ISBN (Print)0819406082
StatePublished - 1991
Externally publishedYes
EventOptical Data Storage '91 - Colorado Springs, CO, USA
Duration: Feb 25 1991Feb 27 1991

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherOptical Data Storage '91
CityColorado Springs, CO, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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