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Optics Letters

Optics Letters


  • Vol. 24, Iss. 8 — Apr. 15, 1999
  • pp: 519–521

Spatially resolved spectral interferometry for determination of subsurface structure

Andrés F. Zuluaga and Rebecca Richards-Kortum  »View Author Affiliations

Optics Letters, Vol. 24, Issue 8, pp. 519-521 (1999)

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We describe an instrument capable of obtaining two-dimensional images of subsurface structure in real time with no moving parts. The technique is based on spectral interferometry and uses an imaging spectrograph to obtain spatially resolved spectra. A test sample consisting of microscope coverslips and a Ronchi grating was measured, illustrating the system’s depth resolution of 38 μm and transverse resolution of at least 12.7 μm . The technique is readily adaptable to endoscopic delivery as well as three-dimensional real-time image acquisition.

© 1999 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.0110) Medical optics and biotechnology : Imaging systems
(170.6960) Medical optics and biotechnology : Tomography
(300.0300) Spectroscopy : Spectroscopy

Andrés F. Zuluaga and Rebecca Richards-Kortum, "Spatially resolved spectral interferometry for determination of subsurface structure," Opt. Lett. 24, 519-521 (1999)

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