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 1.3μm for deeper penetration into biological tissues. By applying the three-step phase-shifting method, our system can measure OCT images at 10frames/s with a sensitivity of 90dB for a 2.45×4.80mm (axial×lateral) measurement range using an InGaAs digital camera (320×256 pixels).
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