Results 71 to 80 of about 19,916 (297)

Evaluation of Ocular Diameter Parameters Using Swept-Source Optical Coherence Tomography

open access: yesMedicina, 2023
Purpose: To investigate the iridocorneal angle-to-angle (ATA), sclera spur-to-sclera spur (STS), and white-to-white (WTW) ocular diameters and their potential influence on anterior chamber intraocular lens (ACIOL) and implantable collamer lens (ICL ...
Jing Dong   +5 more
doaj   +1 more source

Beyond backscattering: Optical neuroimaging by BRAD

open access: yes, 2018
Optical coherence tomography (OCT) is a powerful technology for rapid volumetric imaging in biomedicine. The bright field imaging approach of conventional OCT systems is based on the detection of directly backscattered light, thereby waiving the wealth ...
Augustin, Marco   +11 more
core   +1 more source

Polarization‐multiplexed, dual‐beam swept source optical coherence tomography angiography [PDF]

open access: yesJournal of Biophotonics, 2018
A polarization‐multiplexed, dual‐beam setup is proposed to expand the field of view (FOV) for a swept source optical coherence tomography angiography (OCTA) system. This method used a Wollaston prism to split sample path light into 2 orthogonal‐polarized beams.
Yang, Jianlong   +6 more
openaire   +3 more sources

Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore

open access: yesAdvanced Functional Materials, EarlyView.
To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul   +8 more
wiley   +1 more source

Swept Source Optical Coherence Tomography - Visualizing Vitreous, Retina and Choroid Simultaneously

open access: yesDelhi Journal of Ophthalmology, 2017
Optical coherence tomography (OCT) has revolutionised ophthalmic imaging and management. It gives in vivo images of retina that can be correlated with histopathological analysis. Up to two thirds of blood supply of eye is derived from choroid.
Amit Gadkar, Vinod Kumar, Ruchir Tewari
doaj   +1 more source

Slow light with a swept-frequency source

open access: yes, 2010
We introduce a new concept for stimulated-Brillouin-scattering-based slow light in optical fibers that is applicable for broadly-tunable frequency-swept sources.
Boyd   +21 more
core   +1 more source

Ultra-broadband wavelength-swept Tm-doped fiber laser using wavelength-combined gain stages [PDF]

open access: yes, 2015
A wavelength-swept thulium-doped fiber laser system employing two parallel cavities with two different fiber gain stages is reported. The fiber gain stages were tailored to provide emission in complementary bands with external wavelength-dependent ...
Agger   +15 more
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Multidimensional en-face OCT imaging of the retina. [PDF]

open access: yes, 2009
Fast T-scanning (transverse scanning, en-face) was used to build B-scan or C-scan optical coherence tomography (OCT) images of the retina. Several unique signature patterns of en-face (coronal) are reviewed in conjunction with associated confocal images ...
Adrian G. Podoleanu   +34 more
core   +1 more source

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu   +10 more
wiley   +1 more source

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