Materials and systems for two photon 3-D ROM devices

Alexander S. Dvornikov, Ilkan Cokgor, Mark Wang, Frederick B. McCormick, Sadik C. Esener, Peter M. Rentzepis

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)203-212
Number of pages10
JournalIEEE Transactions on Components Packaging and Manufacturing Technology Part A
Issue number2
StatePublished - Jun 1997
Externally publishedYes


  • 3-D storage
  • Parallel access optical memory
  • Photochromic materials
  • Two-photon absorption
  • Volume optical memory

ASJC Scopus subject areas

  • Engineering(all)


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