Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2007-04-05
2010-06-22
Turner, Samuel A (Department: 2877)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
Reexamination Certificate
active
07742173
ABSTRACT:
Arrangements and methods are provided for obtaining data associated with a sample. For example, at least one first electro-magnetic radiation can be provided to a sample and at least one second electro-magnetic radiation can be provided to a reference (e.g., a non-reflective reference). A frequency of such radiation(s) can repetitively vary over time with a first characteristic period. In addition, a polarization state of the first electro-magnetic radiation, the second electro-magnetic radiation, a third electro-magnetic radiation (associated with the first radiation) or a fourth electro-magnetic radiation (associated with the second radiation) can repetitively vary over time with a second characteristic period which is shorter than the first period. The data for imaging at least one portion of the sample can be provided as a function of the polarization state. In addition or alternatively, the third and fourth electro-magnetic radiations can be combined so as to determine an axial reflectance profile of at least one portion of the sample.
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Bouma Brett Eugene
De Boer Johannes F.
Tearney Guillermo J.
Yun Seok-Hyun
Dorsey & Whitney LLP
The General Hospital Corporation
Turner Samuel A
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