Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dispersion mapping as a simple postprocessing step for Fourier domain
  Optical Coherence Tomography data   Optical Coherence Tomography (OCT) was originally conceived as a volumetric
imaging method. Quickly, OCT images went beyond structural data and started to
provide functional information about an object enabling for example
visualization of blood flow or tissue elasticity. Minimal or no need for system
alterations make functional OCT techniques useful in performing multimodal
imaging, where differently contrasted images are produced in a single
examination. We propose a method that further extends the current capabilities
of OCT and requires no modifications to the system. Our algorithm provides
information about the sample's Group Velocity Dispersion (GVD) and can be
easily applied to any OCT dataset acquired with a Fourier domain system. GVD is
calculated from the difference in material's optical thickness measured from
two images obtained for different spectral ranges. Instead of using two
separate light sources, we propose to apply a filter-based, numerical procedure
that synthesizes two spectra from one broadband spectrum. We discuss the
limitations of the method and present GVD values for BK7 and sapphire and
ocular media: cornea and aqueous humour of a rat eye. Results corroborate
previous measurements using two different light sources.

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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
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The categories of this paper are: chao-dyn
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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: nucl-th