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Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Unique Properties of SBN and Their Use in a Layered Optical Memory.
Applied Optics
|February 4, 2010
Summary
Strontium barium niobate (Sr(0.75)Ba(0.25)Nb(2)O(6) or SBN 75/25) crystals are the most sensitive holographic storage media discovered. They enable novel optical memory devices with enhanced recording sensitivity and voltage-controlled reconstruction.
Area of Science:
- Materials Science
- Optics
- Crystallography
Background:
- Holographic data storage offers high density.
- Crystalline materials are explored for holographic media.
- Strontium barium niobate (SBN) is a ferroelectric crystal with photorefractive properties.
Purpose of the Study:
- To investigate the holographic storage capabilities of SBN 75/25.
- To explore electric-field induced effects in SBN 75/25 for holographic applications.
- To demonstrate a novel layered optical memory using SBN 75/25.
Main Methods:
- Experimental holographic storage using SBN 75/25 crystals.
- Measurement of diffraction efficiency and recording sensitivity.
- Application of electric fields to modify holographic properties.
- Construction and testing of an experimental layered optical memory model.
Main Results:
- SBN 75/25 demonstrated the highest sensitivity among crystalline holographic media.
- An exposure of 0.003 J/cm(2) yielded 1% diffraction efficiency.
- Electric fields enhanced recording sensitivity and enabled voltage-switchable holographic reconstruction.
- A novel layered optical memory with electrical access was successfully implemented.
Conclusions:
- SBN 75/25 is a highly sensitive holographic storage medium.
- Electric-field induced effects in SBN 75/25 are crucial for advanced optical memory.
- The developed layered optical memory concept is feasible and demonstrates unique functionalities.
