Results 81 to 90 of about 30,193 (334)

105° field of view non-contact handheld swept-source optical coherence tomography

Optics Letters, 2021
We demonstrate a handheld swept-source optical coherence tomography (OCT) system with a 400 kHz vertical-cavity surface-emitting laser (VCSEL) light source, a non-contact approach, and an unprecedented single shot 105° field of view (FOV).
S. Ni, Thanh-Tin P. Nguyen, Ringo Ng, Shanjida Khan, S. Ostmo, Yali Jia, M. Chiang, David Huang, J. Campbell, Y. Jian   +9 more
semanticscholar   +1 more source

PEDOT‐Based Eutectogel Electrode Arrays for Enhanced High‐Resolution Electrogastrography: Fabrication, Stability, and Wearable Performance

Advanced Functional Materials, EarlyView.
Here, we present a high‐density PEDOT eutectogel electrode array for enhanced body surface gastric mapping. Silver electrodes are blade‐coated onto flexible substrates, followed by electrogelation of PEDOT:PSS and the deposition of a PEDOT:LS eutectogel.
Christopher Slaughter, Luke Gatecliff, Xudong Tao, Ruben Ruiz‐Mateos Serrano, Amy T. Jin, Matias L. Picchio, Daniele Mantione, Antonio Dominguez‐Alfaro, George G. Malliaras   +8 more
wiley   +1 more source

Wavelength-swept Tm-doped fiber laser operating in the two-micron wavelength band [PDF]

, 2014
A wavelength-swept thulium-doped silica fiber laser using an intracavity rotating slotted-disk wavelength scanning filter in combination with an intracavity solid etalon for passive control of temporal and spectral profiles is reported. The laser yielded
C. S. Chenug, Chinn, Geng, H. Liang, Huber, J. M. O. Daniel, Jeon, Kodach, Liang, M. Tokurakawa, Moon, Nielsen, Oh, Scheps, Shen, Srinivasan, Tsai, W. A. Clarkson, Yun, Yun   +19 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Technical failure rates for biometry between swept-source and older-generation optical coherence methods: a review and meta-analysis

BMC Ophthalmology, 2023
Purpose Precise ocular measurements are fundamental for achieving excellent target refraction following both cataract surgery and refractive lens exchange. Biometry devices with swept-source optical coherence tomography (SS-OCT) employ longer wavelengths
Piotr Kanclerz, Idan Hecht, Raimo Tuuminen   +2 more
doaj   +1 more source

Multimodality Imaging Of Torpedo Maculopathy With Swept-Source, En Face Optical Coherence Tomography And Optical Coherence Tomography Angiography. [PDF]

, 2016
PURPOSE: Multimodality image analysis of two cases of torpedo maculopathy. METHODS: Imaging with fundus photography, autofluorescence (AF), swept-source optical coherence tomography (OCT), en face OCT, and OCT angiography.
Keane, PA, Papastefanou, VP, Sagoo, MS, Vázquez-Alfageme, C   +3 more
core  

Signal-to-signal-to-noise ratio of full-field Fourier domain optical coherence tomography: experiment [PDF]

, 2005
We report a new approach in optical coherence tomography (OCT) termed full-field Fourier-domain OCT (3F-OCT). A three-dimensional image of a sample is obtained by digital reconstruction of a three-dimensional data cube, acquired using a Fourier ...
Blazkiewicz, Paul, Gourlay, P. M., Gujrathi, Mandar, Rakic, Aleksandar, Tucker, John R., Zvyagin, Andrei V.   +5 more
core   +1 more source

Characterization of macular choroid in normal‐tension glaucoma: a swept‐source optical coherence tomography study

Acta ophthalmologica, 2021
To investigate the features of the small‐to‐medium (choriocapillaris and Sattler’s layer) and large (Haller’s layer) sized vessel layers of the macular choroid in normal‐tension glaucoma (NTG) patients using swept‐source optical coherence tomography (SS ...
Yu Meng Wang, V. Hui, Jian Shi, Mandy O M Wong, Poemen P. Chan, N. Chan, Isabel Lai, C. Cheung, C. Tham   +8 more
semanticscholar   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Uveal colobomas with pseudo-duplication of the optic disc in both eyes: imaging by ultra-widefield swept-source optical coherence tomography angiography: a case report

Journal of Medical Case Reports
Background Duplication of the optic disc is a rare phenomenon. Differentiating between true duplication and pseudo-duplication requires a comprehensive set of diagnostic procedures. Advancements in imaging provide new insights into this condition.
Sizhu Chen, Xinyue Liu, Jie Zhong
doaj   +1 more source