Results 71 to 80 of about 11,595,150 (357)
Enhancement of Second-Order Nonlinear-Optical Signals by Optical Stimulation
Physical Review Letters, 2015 Second-order nonlinear optical interactions such as sum- and difference-frequency generation are widely used for bioimaging and as selective probes of interfacial environments. However, inefficient nonlinear optical conversion often leads to poor signal-to-noise ratio and long signal acquisition times.
Goodman, Aaron Jacob +1 more
openaire +5 more sources
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
, 2011 Nanostructured plasmonic metamaterials, including optical nanoantenna arrays, are important for advanced optical sensing and imaging applications including surface-enhanced fluorescence, chemiluminescence, and Raman scattering. Although designs typically
Joshua D. Borneman +7 more
core +1 more source
Biophysical approaches for studying viral entry
FEBS Letters, EarlyView.Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley +1 more source
A Scale-Adaptive Matching Algorithm for Underwater Acoustic and Optical Images
Sensors, 2020 Underwater acoustic and optical data fusion has been developed in recent decades. Matching of underwater acoustic and optical images is a fundamental and critical problem in underwater exploration because it usually acts as the key step in many ...
Jun Liu +5 more
doaj +1 more source
Electron confinement and optical enhancement in S i / S i O 2 superlattices [PDF]
, 2001 We have performed first-principles calculations of Si/SiO2 superlattices in order to examine their electronic states, confinement and optical transitions, using linearized-augmented-plane-wave techniques and density-functional theory.
P. Carrier +2 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
Theoretical study about the gain in indirect bandgap semiconductor optical cavities [PDF]
, 2012 Indirect bandgap semiconductors such as silicon are not efficient light emitters because a phonon with a high momentum is required to transfer an electron from the conduction to the valence band. In a recent study [M. J.
Escalante, José María +2 more
core +1 more source
AIP Advances, 2016 Precise knowledge of the linewidth enhancement factor of a semiconductor laser under actual operating conditions is of prime importance since this parameter dictates various phenomena such as linewidth broadening or optical nonlinearities enhancement ...
L. Jumpertz +6 more
doaj +1 more source
Electrically regulating nonlinear optical limiting of metal-organic framework film
Nature Communications, 2022 Nonlinear optical properties of metal-organic framework can be tuned for potential optical applications. Here the authors demonstrate an enhancement the nonlinear absorption coefficient of MOF film by applying external electric field.
Zhi-Zhou Ma +4 more
doaj +1 more source