Frequency tracking in optical Doppler tomography using an adaptive notch filter
Optical Doppler tomography is a valuable functional extension of optical coherence tomography (OCT) that can be used to study subsurface blood flows of biological tissues. We propose a novel frequency...
Time-resolved simultaneous measurement of group index and physical thickness during photopolymerization of resin-based dental composite
Light-activated resin-based dental composites are increasingly replacing dental amalgam. However, these materials are limited by inefficient setting reactions as a function of depth that constrain the...
John A. Rogers and Justin Pedro Ophthalmic Technologies Inc., 37 Kodiak Cres Unit 16, Toronto, Ontario M3J 3E5 Canada
Richard B. Rosen and Patricia Garcia The New York Eye and Ear Infirmary, Advanced Retinal Imaging Center, 310 East 14th Street, New York, New York 10003-4297
Wedevelop a dual-channel optical coherence tomography/indocyanine green (OCT/ICG) fluorescence systembased on our previously reported ophthalmic OCT/confocal imaging system. Theconfocal channel is tuned to the fluorescence wavelength range ofthe ICG dye and light from the same optical sourceis used to generate the OCT image and to excitethe ICG fluorescence. The system enables the clinician to visualizesimultaneously en face OCT slices and corresponding ICG angiograms ofthe ocular fundus, displayed side by side. C-scan (constant depth)and B-scan (cross section) images are collected by fast enface scanning (T-scan). The pixel-to-pixel correspondence between the OCT andangiography images enables the user to precisely capture OCT B-scansat selected points on the ICG confocal images.
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