Quantitative phase reconstruction for orthogonal-scanning differential phase-contrast optical coherence tomography

Quantitative phase reconstruction for orthogonal-scanning differential phase-contrast optical coherence tomography

We present differential phase-contrast optical-coherence tomography (DPC-OCT) with two transversally separated probing beams to sense phase gradients in various directions by employing a rotatable Wollaston prism. In combination with a two-dimensional mathematical-reconstruction algorithm based on a...

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Veröffentlicht in:Optics letters 2009-05, Vol.34 (9), p.1306-1308
Hauptverfasser: HEISE, Bettina, STIFTER, David
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Image reconstruction
tomography
Imaging and optical processing
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Interferometers
Oils - chemistry
Optical instruments, equipment and techniques
Optics
Phase retrieval
Physics
Polymers - chemistry
Rotation
Time Factors
Tomography, Optical Coherence - instrumentation
Tomography, Optical Coherence - methods
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Beschreibung
Zusammenfassung:We present differential phase-contrast optical-coherence tomography (DPC-OCT) with two transversally separated probing beams to sense phase gradients in various directions by employing a rotatable Wollaston prism. In combination with a two-dimensional mathematical-reconstruction algorithm based on a regularized shape from shading method, accurate quantitative phase maps can be determined from a set of two orthogonal en-face DPC-OCT images, as exemplified on various technical samples.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.34.001306