We present an optical technique to image the frequency-dependent complex mechanical response of a viscoelastic sample. Three-dimensional hyperspectral data, comprising two-dimensional B-mode images and a third dimension corresponding to vibration frequency, were acquired from samples undergoing external mechanical excitation in the audio-frequency range. We describe the optical coherence tomogr...

Optical coherence tomography (OCT) was one of the biggest advances in ophthalmic imaging. Building on that platform, OCT angiography (OCTA) provides depth resolved images of blood flow in the retina and choroid with levels of detail far exceeding that obtained with older forms of imaging. This new modality is challenging because of the need for new equipment and processing techniques, current l...

A technique called optical coherence tomography (OCT) has been developed for noninvasive cross-sectional imaging in biological systems. OCT uses low-coherence interferometry to produce a two-dimensional image of optical scattering from internal tissue microstructures in a way that is analogous to ultrasonic pulse-echo imaging. OCT has longitudinal and lateral spatial resolutions of a few microm...

Case presentation: A 56-year-old man presented to the hospital with chest pain and a non–ST-segment elevation myocardial infarction. Thrombotic plaque rupture in the left anterior descending coronary artery was treated with an everolimus-eluting stent. After stent deployment, angiography demonstrated the presence of a hazy opacity at the distal edge of the stent, and there was concern about a p...

Interferometric Synthetic Aperture Microscopy (ISAM) obviates the trade-off between depth-of-focus and resolution in interferometric coherence imaging. In this work, ISAM’s quantitative image reconstruction techniques are applied in a vectorial setting, thus admitting polarization-sensitive imaging. ©2007 Optical Society of America OCIS codes: (100.3190) Inverse Problems; (100.6890) Three-dimen...

The line field (LF) design choice for the lateral image formation mechanism (lateral format) has historically been a fraction of whole optical coherence tomography (OCT) field. However, as OCT technology develops, parallelised acquisition LF-OCT formats (LF-time domain (TD)-OCT, LF-spectral (SD)-OCT, LF-swept source (SS)-OCT) offers benefits and capabilities, which may mean it is now becoming m...