Three-dimensional memory using photoreduction of Eu ions

Minh Tuan Trinh, Ki Soo Lim, Sunkyun Lee, Jung Rim Nam, Eunkyoung Kim

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


In this work, we report three-dimensional memory by recording optical bits with irradiation of near-infrared femtosecond laser pulses and by reading photoluminescence change in the blue due to permanent reduction of Eu 3+ to Eu2+ in sodium borate glasses. We produced a multilayered micro-bit pattern which was read out by detecting the blue emission from the 405 nm excitation with a high S/N ratio. The readout was performed by using a scanning reflection-type confocal microscope.

Original languageEnglish
Title of host publicationNanoengineering
Subtitle of host publicationFabrication, Properties, Optics, and Devices III
Publication statusPublished - 2006
EventNanoengineering: Fabrication, Properties, Optics, and Devices III - San Diego, CA, United States
Duration: 2006 Aug 152006 Aug 17

Publication series

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


OtherNanoengineering: Fabrication, Properties, Optics, and Devices III
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

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


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