Journal ArticleDOI
Optical Imaging and Information Storage in Ion Implanted Ferroelectric Ceramics
Paul S. Peercy,C. E. Land +1 more
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In this article, it was shown that the photosensitivity of ferroelectric-phase lead lanthanum zirconate titanate (PLZT) ceramics is dramatically improved by ion implantation into the surface exposed to image light.Abstract:
Photographic images can be stored in ferroelectric-phase lead lanthanum zirconate titanate (PLZT) ceramics using a novel photoferroelectric effect. These images are nonvolatile but erasable and can be switched from positive to negative by application of an electric field. We have found that the photosensitivity of ferroelectric PLZT is dramatically improved by ion implantation into the surface exposed to image light. For example, the intrinsic photosensitivity to near-UV light is increased by as much as four orders of magnitude by co-implantation with Ar and Ne. The increased photosensitivity results from implantation-induced decreases in dark conductivity and dielectric constant in the implanted layer. Furthermore, the increased photoferroelectric sensitivity has recently been extended from the near-UV to the visible spectrum by implants of Al and Cr. Ion-implanted PLZT is the most sensitive, nonvolatile, selectively-erasable image storage medium currently known.read more
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Ion-implanted PLZT ceramics: A new high-sensitivity image storage medium
P. S. Peercy,C. E. Land +1 more
TL;DR: In this paper, the effects of Ar and Ar + Ne implantation were presented along with a phenomenological model which describes the photosensitivity enhancement obtained by ion implantation. But, the effect of the implantation produced disorder which results in marked decreases in dark conductivity and dielectric constant and changes in the effective photoconductivity of the implanted layer.
References
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Journal ArticleDOI
Spatial distribution of energy deposited into atomic processes in ion-implanted silicon
TL;DR: In this article, the spatial distribution of the production of a quantity, Q, averaged over many ions incident randomly on a solid for any energy dependent interaction between the ions and target atoms.
Journal ArticleDOI
Recoil contribution to ion‐implantation energy‐deposition distributions
TL;DR: In this paper, a method for directly calculating the spatial distribution of energy deposition into damage or ionization for ions implanted into solid targets is extended to account for energy transport by recoiling target atoms.
Journal ArticleDOI
Imaging Characteristics of the Itek PROM.
S. G. Lipson,P. Nisenson +1 more
TL;DR: Progress in the fabrication, operation, and performance of the Itek PROM (Pockels readout optical modulator) is discussed and the same method used to suppress the zero order in Fraunhofer diffraction patterns of such images is used.
Journal ArticleDOI
Reflective‐mode ferroelectric‐photoconductor image storage and display devices
C. E. Land,W. D. Smith +1 more
TL;DR: In this paper, a new type of image storage and display device, called the Fericon, is described in which the image is stored by means of electrically induced surface deformation in ferroelectric ceramics.
Journal ArticleDOI
Photoferroelectric effects in PLZT ceramics
C. E. Land,P. S. Peercy +1 more
TL;DR: In this article, photo assisted domain switching (PDS) is used to store high resolution, high contrast, nonvolatile optical information, including gray scale images in PLZT ceramics.
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