Static information storage and retrieval – Information masking – Diffraction
Patent
1989-10-19
1991-03-12
Hecker, Stuart N.
Static information storage and retrieval
Information masking
Diffraction
365119, 365151, G11C 1304, G11C 1300, G11C 1100
Patent
active
049998102
ABSTRACT:
A method and apparatus for a Surface-Enhanced Raman Optical Data Storage (SERODS) System is disclosed. A medium which exhibits the Surface Enhanced Raman Scattering (SERS) phenomenon has data written onto its surface of microenvironment by means of a write-on procedure which disturbs the surface or microenvironment of the medium and results in the medium having a changed SERS emission when excited. The write-on procedure is controlled by a signal that corresponds to the data to be stored so that the disturbed regions on the storage device (e.g., disk) represent the data. After the data is written onto the storage device it is read by exciting the surface of the storage device with an appropriate radiation source and detecting changes in the SERS emission to produce a detection signal. The data is then reproduced from the detection signal.
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Hecker Stuart N.
Marasco J. A.
Martin Marietta Energy Systems Inc.
Whitfield Michael A.
Winchell Bruce M.
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