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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chian Chiu Li0
Date of Patent
April 4, 2006
0Patent Application Number
103675100
Date Filed
February 14, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An interferometric optical device divides a beam into two beam portions by wavefront division and produces a tunable phase difference between them. Next a sample and a reference reflector reflect the beam portions respectively. Then interference between the reflected beam portions is used for topography, tomography, and readout of multi-layer optical data storage media.
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