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Methods, arrangements and systems for polarization-sensitive optical frequency domain imaging of a sample

  • US 7,742,173 B2
  • Filed: 04/05/2007
  • Issued: 06/22/2010
  • Est. Priority Date: 04/05/2006
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one first arrangement which is configured to provide at least one first electro-magnetic radiation to a sample and at least one second electro-magnetic radiation to a reference, wherein a frequency of radiation provided by the at least one first arrangement varies repetitively over time with a first characteristic period;

    at least one second arrangement which is configured to repetitively vary a polarization state of at least one of the first electro-magnetic radiation, the second electro-magnetic radiation, a third electro-magnetic radiation or a fourth electro-magnetic radiation over time with a second characteristic period; and

    at least one third arrangement which is configured to provide data for imaging at least one portion of the sample as a function of the polarization state,wherein the third electro-magnetic radiation is associated with the at least one first radiation and the fourth electro-magnetic radiation is associated with the at least one second radiation, and wherein the second period is shorter than the first period.

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