Selective page-addressable fixing of volume holograms in Sr(0.75)Ba(0.25)Nb(2)O(6) crystals.

We demonstrate selective fixing of volume holograms in photorefractive media. Each holographic page may be fixed individually and overwritten without destroying the other fixed pages. We present experimental results describing this process in Cr-doped Sr(0.75)Ba(0.25)Nb(2)O(6) at room temperature, with hologram lifetimes exceeding 100 days during continuous readout with an intense beam (1 W/cm(2)).

[1]  Baruch Fischer,et al.  Broadband second‐harmonic generation in SrxBa1−xNb2O6 by spread spectrum phase matching with controllable domain gratings , 1993 .

[2]  Demetri Psaltis,et al.  Electrical fixing of photorefractive holograms in Sr0.75Ba0.25Nb2O6 , 1993 .

[3]  R R Neurgaonkar,et al.  Electric-field multiplexing/demultiplexing of volume holograms in photorefractive media. , 1993, Optics letters.

[4]  G C Valley,et al.  Hologram fixing in Bi(12)TiO(20) using heating and an ac electric field. , 1989, Applied optics.

[5]  F. Micheron,et al.  Field and time thresholds for the electrical fixation of holograms recorded in (Sr0.75Ba0.25)Nb2O6 crystals , 1973 .

[6]  F. Micheron,et al.  Electrical Control of Fixation and Erasure of Holographic Patterns in Ferroelectric Materials , 1972 .

[7]  F. Micheron,et al.  Photoinduced phase transitions in (Sr, Ba)Nb2o6 crystals and applications , 1974 .

[8]  J. J. Amodei,et al.  HOLOGRAPHIC PATTERN FIXING IN ELECTRO‐OPTIC CRYSTALS , 1971 .

[9]  T. Volk,et al.  Spontaneous Polarization Reversal and Photorefractive Effect in Single-Domain Iron-Doped Lithium Niobate Crystals , 1978, January 16.

[10]  R. Rupp,et al.  Microphotometric investigation of fixed holograms , 1988 .

[11]  J. P. Herriau,et al.  Hologram fixing process at room temperature in photorefractive Bi12SiO20 crystals , 1986 .

[12]  J. Huignard,et al.  Coherent selective erasure of superimposed volume holograms in LiNbO3 , 1975 .

[13]  A Agranat,et al.  Fixing of a photorefractive grating in KTa(1-x)Nb(x)O(3) by cooling through the ferroelectric phase transition. , 1991, Optics letters.

[14]  R. Rupp.  Microphotometric investigations of thick refractive index gratings in photorefractive crystals , 1986 .

[15]  J B Thaxter,et al.  Unique Properties of SBN and Their Use in a Layered Optical Memory. , 1974, Applied optics.