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Apparatus and methods for measuring vibrations using spectrally-encoded endoscopy

  • US 8,045,177 B2
  • Filed: 04/17/2008
  • Issued: 10/25/2011
  • Est. Priority Date: 04/17/2007
  • Status: Active Grant
First Claim
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1. An apparatus for providing imaging information associated with at least one portion of a sample, comprising:

  • at least one first arrangement configured to provide (i) at least two first different wavelengths of at least one first electro-magnetic radiation within a first wavelength range provided on the at least one portion of the sample so as to determine at least one first transverse location of the portion, and (ii) at least two second different wavelengths of at least one second electro-magnetic radiation within a second wavelength range provided on the portion so as to determine at least one second transverse location of the portion;

    at least one second arrangement configured to obtain a relative phase between at least one third electro-magnetic radiation being returned from the sample and at least one fourth electro-magnetic radiation returned from a reference to determine a motion of the portion or of particles within or on the portion, wherein the motion is effectuated by at least one of a sound wave; and

    at least one third arrangement configured to provide the imaging information of the portion based on the at least one first transverse location, the at least one second transverse location and the motion.

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