Results 71 to 80 of about 365,427 (304)

Dead Zone Fault Detection Optimization Method for Few-Mode Fiber Links Based on Unexcited Coupled Higher-Order Modes

open access: yesPhotonics
The traditional single-mode fiber (SMF) optical time domain reflectometer (OTDR) may not be able to accurately detect and locate fault events in the dead zone of few-mode fiber (FMF) links.
Feng Liu, Tianle Gu, Zicheng Huang
doaj   +1 more source

Influence of artificially generated interocular blur difference on fusion stability under vergence stress

open access: yesJournal of Eye Movement Research, 2019
The stability of fusion was evaluated by its breakage when interocular blur differences were presented under vergence demand to healthy subjects. We presumed that these blur differences cause suppression of the more blurred image (interocular blur ...
Miroslav Dostalek   +7 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Design, Fabrication, and Characterization of Semiconductor Transverse Bragg Resonance Lasers [PDF]

open access: yes, 2007
Controlling the spatial modes of a laser cavity is fundamental for improving the beam quality of a laser and achieving highly efficient coupling of power into an optical system.
Choi, John Myun
core   +1 more source

Subdiffraction incoherent optical imaging via spatial-mode demultiplexing

open access: yesNew Journal of Physics, 2017
I propose a spatial-mode demultiplexing (SPADE) measurement scheme for the far-field imaging of spatially incoherent optical sources. For any object too small to be resolved by direct imaging under the diffraction limit, I show that SPADE can estimate ...
Mankei Tsang
doaj   +1 more source

Temporal shaping of single photons by engineering exciton dynamics in a single quantum dot

open access: yesAPL Photonics, 2021
The majority of photonic quantum information technologies rely on single photons that have high purity and indistinguishability. Although solid-state quantum emitters can serve such single photons on demand, their asymmetric temporal and spatial mode ...
Kyu-Young Kim   +3 more
doaj   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Reconfigurable modal gain control of a few-mode EDFA supporting six spatial modes

open access: yes, 2014
We experimentally demonstrate an inline few-mode erbium doped fiber amplifier supporting six spatial modes with reconfigurable differential gain control and excellent gain flatness obtained through mode-selective bidirectional pumping of a custom fiber ...
Alam, S.U.   +8 more
core   +1 more source

Mode-Locked Topological Insulator Laser Utilizing Synthetic Dimensions

open access: yes, 2021
We propose a system that exploits the fundamental features of topological photonics and synthetic dimensions to force many semiconductor laser resonators to synchronize, mutually lock, and under suitable modulation emit a train of transform-limited mode ...
Miguel A. Bandres (3958061)   +6 more
core   +1 more source

Development of a dual-mode energy-resolved neutron imaging detector: High spatial resolution and large field of view

open access: yesNuclear Engineering and Technology
Energy-resolved neutron imaging is an effective way to investigate the internal structure and residual stress of materials. Different sample sizes have varying requirements for the detector's imaging field of view (FOV) and spatial resolution. Therefore,
Wenqin Yang   +21 more
doaj   +1 more source

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