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In vivo non-mechanical scanning grating-generated optical coherence tomography using an InGaAs digital camera

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
261
Issue
2
Identifiers
DOI: 10.1016/j.optcom.2005.12.030
Disciplines
  • Biology
  • Medicine

Abstract

Abstract We demonstrated in vivo cross-sectional imaging of human fingers by non-mechanical scanning optical coherence tomography (OCT), using a diffracted light as the reference beam and a linear illumination beam at a center wavelength of 1.3 μm for deeper penetration into biological tissues. By applying the three-step phase-shifting method, our system can measure OCT images at 10 frames/s with a sensitivity of 90 dB for a 2.45 × 4.80 mm (axial × lateral) measurement range using an InGaAs digital camera (320 × 256 pixels).

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