  Based on high-throughput dark-field full-field optical coherence tomography,
we designed and built an OCT system that can measure a variety of samples with
different scattered light intensities, such as materials with multi-layer
structures, living biological tissues, etc. The system can obtain the
backscattered light of samples to quickly generate the 2D cross-section image,
2D profile and 3D perspective of samples, and has the advantages of
non-contact, non-damage, high image resolution and simple operation. At the
same time, we also use average, four-phase cancellation and smooth step
function to reduce noise, realize the measurement of finger epidermis and
dermis and obtain their 3D perspective view. Sweat gland structures were
observed in the dermis of the fingers. We also realized the non-destructive
measurement of the kapoton tapes, photographed its 2D profile, and obtained its
single channel waveform diagram on this basis, and completed the
non-destructive and non-contact measurement of the multi-layer structure.
