Single-shot off-axis full-field optical coherence tomography

Abstract

Full field optical coherence tomography (FF-OCT) enables high-resolution in-depth imaging within turbid media. In this work, we present a simple approach which combines FF-OCT with off-axis interferometry for reconstruction of en-face images. With low spatial and temporal coherence illumination, this method is able to extract an FF-OCT image from only one interference acquisition. This method is described, and the proof-of-concept is demonstrated through the observation of scattering samples such as organic and ex vivo biomedical samples.

Full-field noise-correlation elastography for in-plane mechanical anisotropy imaging

“…If it is not the case and the fibers in the sample are oriented in a direction which is not parallel to the imaging plane, the anisotropy ratio of the sample will be underestimated. In order to avoid this bias, a 3D full-field imaging system could be implemented such as a full-field OCT [ 63 – 65 ]. Other bias common to most elastography approaches should also be considered such as viscoelasticity or the finite dimensions of the sample, the presence of guided waves or pre-stress [ 66 ].…”

Non-contact detection of ultrasound with light – Review of recent progress

“…When the rate of line-scan cameras reaches 5–10 MHz, the approach proposed in OCE will most probably be extended to laser ultrasonics. In addition, full-field OCT systems were recently demonstrated [94] , [95] , which can also attract the attention for their use in the US signal detection.…”