Enhancement of the signal-to-noise ratio at depths in Fourier domain optical coherence tomography

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en

We present a Fourier domain optical coherence tomography set-up built around an optical configuration that exhibits Talbot bands. To produce Talbot bands, the two interferometer beams, object and reference are laterally shifted in their way towards the diffraction grating. This allows attenuation of mirror terms and optimisation of the sensitivity profile. We imaged the human skin in-vivo, and quantified the profile of the sensitivity profile in tissue by measuring the ratio between the strengths of signals originating in the reticular dermis and in the stratum corneum for different values of the lateral shift of the two interfering beams.

optical coherence tomography; Talbot bands; mirror terms

2012-02-09

SPIE-INT SOC OPTICAL ENGINEERING

BELLINGHAM, WA 98227-0010 USA

978-0-8194-8856-5

0277-786X

Proc. SPIE 8213, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI

Proceedings of SPIE

8213

821337

[1]–[5]

5