Results 51 to 60 of about 253,283 (318)

Probing molecules in gas cells of subwavelength thickness with high frequency resolution

open access: yesNature Communications
Miniaturizing and integrating atomic vapor cells is widely investigated for the purposes of fundamental measurements and technological applications such as quantum sensing.
Guadalupe Garcia Arellano   +8 more
doaj   +1 more source

Improved active sub-terahertz imaging system for parcel inspection

open access: yesJournal of the European Optical Society-Rapid Publications
Terahertz radiation has emerged as a prominent solution for imaging and detection beyond visible and infrared. Active terahertz imaging is a widely used technology in this context especially for security applications and screening. Such systems are built
Boutemedjet Ayoub   +3 more
doaj   +1 more source

Downscaled Finite Element Modeling of Metal Targets for Surface Roughness Level under Pulsed Laser Irradiation

open access: yesApplied Sciences, 2021
A three-dimensional, thermal-structural finite element model, originally developed for the study of laser–solid interactions and the generation and propagation of surface acoustic waves in the macroscopic level, was downscaled for the investigation of ...
Evaggelos Kaselouris   +9 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Reconfigurable spatial-mode generation and multiplexing on a scalable photonic chip

open access: yesnpj Nanophotonics
Spatial modes have found widespread applications in spatial division multiplexing (SDM), sensing, quantum information processing, and on-chip machine learning.
Xingguo Xiao   +5 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

Transform-limited dual-comb spectroscopy using free-running waveguide lasers [PDF]

open access: yes, 2017
We present a standalone dual-comb platform based on two mutually stable waveguide lasers integrated in the same glass chip. Residual fluctuations are compensated using an algorithm seeded only by interferograms, which yields transform-limited ...
Lancaster, D.G.   +13 more
core   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Yb:tungstate waveguide lasers [PDF]

open access: yes, 2011
Lasers find a wide range of applications in many areas including photo-biology, photo-chemistry, materials processing, imaging and telecommunications. However, the practical use of such sources is often limited by the bulky nature of existing systems.
Bain, Fiona Mair
core  

Characterization of an X-ray Source Generated by a Portable Low-Current X-Pinch

open access: yesApplied Sciences, 2021
An X-pinch scheme of a low-current generator (45 kA, 50 ns rise time) is characterized as a potential efficient source of soft X-rays. The X-pinch target consists of wires of 5 μm in diameter—made from either tungsten (W) or gold (Au)-plated W—loaded at ...
Alexandros Skoulakis   +8 more
doaj   +1 more source

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