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An ultrahigh-density digital data read-out method based on grazing-angle incidence x-ray backscattering diffraction
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INSTITUTE
OF PHYSICS PUBLISHING JOURNAL OF OPTICS A: PURE AND APPLIED OPTICS
J. Opt. A: Pure Appl. Opt. 7 (2005) 604–612
Hakob
(Akop) P Bezirganyan1,
Hayk H Bezirganyan Jr2,
Siranush E
Bezirganyan3,
PetrosHBezirganyan Jr4
and
Youri G Mossikyan5
1
Department
of Solid State Physics, Yerevan State University, #1, Alex
Manoogian Street,
Yerevan City, AM
375025, Republic of Armenia
2
Department
of Informatics and Applied Mathematics, Yerevan State University,
#1, Alex Manoogian
Street, Yerevan City, AM 375025, Republic of Armenia
3
Department
of Medical and Biological Physics, Yerevan State Medical
University after
Mkhitar Heratsi, #2,
Koryun Street, Yerevan City, AM 375025, Republic of Armenia
4
Department
of Computer Science, State Engineering University of Armenia,
#105, Terian Street,
Yerevan City, AM 375009, Republic of Armenia
5
Yerevan
Automated Control Systems Computer Scientific-Research Institute,
#3, H Hakobyan
Street, Yerevan City, AM 375033, Republic of Armenia
E-mail: pbezi@x-rom.org
Published
on 12 September 2005.
Abstract
An
ultrahigh-density x-ray optical data storage medium useful for
terabyte-scale memory applications and named X-ROM is proposed.
The X-ROM is a nanocrystalline semiconductor layer, in which
non-diffracting nanosized reflectors of x-radiation are embedded.
The procedure of digital data read-out from the X-ROM can be
performed e.g. by the application of a grazing-angle incidence
x-ray backscattering diffraction technique under conditions of
specular vacuum wave suppression. The surface storage digital data
density of the proposed device, with 20 nm/bit linear size
of the single-bit domain, is higher by two orders of magnitude
than the volumetric data density actually achieved for a
three-dimensional optical data storage medium.
Keywords: data read-out, zone-plate-array
lithography, grazing-angle incidence x-ray, crystalline
layer, backscattering diffraction, specular beam suppression, Mathieu functions.
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