Results 21 to 30 of about 186,050 (217)
Applied Sciences, 2020 We consider an integrated electro-absorption modulator within a coupled-cavity VCSEL structure (EAM-VCSEL). We derive expressions for the modulation transfer function (MTF) of the EAM-VCSEL for small-signal modulation of either VCSEL injection current or
Krassimir Panajotov, Richard Schatz
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Optics, 2023 In the design of photonic integrated circuits (PICs), the optical connections of the PIC surface, along with the electronic components of the chips, are significant issues. One of the optoelectronics components that utilizes these surface connections are
Mohammad Mahdi Khakbaz Heshmati +1 more
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Off-set Filtering Effect in SOA Based Optical Access Network [PDF]
Radioengineering, 2016 In-line and reflective semiconductor optical amplifiers (SOA and RSOA) can be effectively utilized as external optical intensity modulators. However the limited modulation bandwidth affects the application possibilities, because next generation access ...
E. Udvary
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Effect of Spatial Modulated Light on Position of Self-Calibration Point
IEEE Photonics Journal, 2021 In optical sensing, the differentiation between absorption and scattering poses a challenge when dealing with a physiological medium. We have shown that for extracting absorption-based parameters it is optimal to measure at the iso-path length (IPL ...
Idit Feder, Hamootal Duadi, Dror Fixler
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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
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Study on the stability of nano-polycrystalline Ag films in thermal and humid environment
Scientific ReportsThis study systematically investigates the degradation behavior of nanopolycrystalline silver films (npAgF) in a thermal and humid environment, focusing on analyzing the impact of specific environmental factors on their performance evolution, especially ...
Yaopeng Li +5 more
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Impact of Device Topology on the Performance of High-Speed 1550 nm Wafer-Fused VCSELs
Photonics, 2023 A detailed experimental analysis of the impact of device topology on the performance of 1550 nm VCSELs with an active region based on thin InGaAs/InAlGaAs quantum wells and a composite InAlGaAs buried tunnel junction is presented.
Andrey Babichev +18 more
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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
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Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Improvement of 200 kHz optical beam scanner performance with multiple internal reflection
The Journal of Engineering, 2014 The authors have realised a KTa(x)Nb(1−)(x)O(3)-based optical beam scanner that has three- and five-pass configurations with internal reflection whose scanning angle is exactly proportional to the optical path length.
Seiji Toyoda +2 more
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