Patents by Inventor Adil Lahrichi

Adil Lahrichi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reversible hologram fixation in photorefractive materials using incoherent ultraviolet light
    Patent number: 6686097
    Abstract: A holographic information storage and retrieval system provides an all-optical reversible method to fix information in doped or undoped photorefractive materials. The fixed information is sufficiently stable to provide long term archival storage over a period of decades or more and can be read out non-destructively by a coherent reference beam. Holograms recorded in a photorefractive material are fixed when the material is irradiated with incoherent ultraviolet light. Hence, the holograms are preserved indefinitely against erasure by a coherent beam and against dissipation in dark storage. Holograms, which are fixed in the photorefractive material with incoherent ultraviolet light, are also erased with incoherent ultraviolet light, thus making the process reversible.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: February 3, 2004
    Inventor: Adil Lahrichi
  • Reversible hologram fixation in photorefractive materials using incoherent ultraviolet light
    Publication number: 20030073007
    Abstract: A holographic information storage and retrieval system provides an all-optical reversible method to fix information in doped or undoped photorefractive materials. The fixed information is sufficiently stable to provide long term archival storage over a period of decades or more and can be read out non-destructively by a coherent reference beam. Holograms recorded in a photorefractive material are fixed when the material is irradiated with incoherent ultraviolet light. Hence, the holograms are preserved indefinitely against erasure by a coherent beam and against dissipation in dark storage. Holograms, which are fixed in the photorefractive material with incoherent ultraviolet light, are. also erased with incoherent ultraviolet light, thus making the process reversible.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 17, 2003
    Applicant: Lumera, Inc.
    Inventor: Adil Lahrichi
  • Reversible hologram fixation in photorefractive materials using incoherent ultraviolet light
    Patent number: 6468699
    Abstract: A holographic information storage and retrieval system provides an all-optical reversible method to fix information in doped or undoped photorefractive materials. The fixed information is sufficiently stable to provide long term archival storage over a period of decades or more and can be read out non-destructively by a coherent reference beam. Holograms recorded in a photorefractive material are fixed when the material is irradiated with incoherent ultraviolet light. Hence, the holograms are preserved indefinitely against erasure by a coherent beam and against dissipation in dark storage. Holograms, which are fixed in the photorefractive material with incoherent ultraviolet light, are also erased with incoherent ultraviolet light, thus making the process reversible.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 22, 2002
    Inventor: Adil Lahrichi
  • REVERSIBLE HOLOGRAM FIXATION IN PHOTOREFRACTIVE MATERIALS USING INCOHERENT ULTRAVIOLET LIGHT
    Publication number: 20020001757
    Abstract: A holographic information storage and retrieval system provides an all-optical reversible method to fix information in doped or undoped photorefractive materials. The fixed information is sufficiently stable to provide long term archival storage over a period of decades or more and can be read out non-destructively by a coherent reference beam. Holograms recorded in a photorefractive material are fixed when the material is irradiated with incoherent ultraviolet light. Hence, the holograms are preserved indefinitely against erasure by a coherent beam and against dissipation in dark storage. Holograms, which are fixed in the photorefractive material with incoherent ultraviolet light, are also erased with incoherent ultraviolet light, thus making the process reversible.
    Type: Application
    Filed: June 1, 1999
    Publication date: January 3, 2002
    Inventor: ADIL LAHRICHI