Results 21 to 30 of about 764,030 (358)

Photoinactivation of Escherichia coli using five photosensitizers and the same number of photons

open access: yesJournal of Innovative Optical Health Sciences, 2022
Bacterial resistance is today a matter of great medical concern, so it is urgent to investigate alternatives to alleviate it. Photodynamic inactivation (PDI) is a method that has been endorsed to inactivate different pathogens, including bacteria, fungi ...
Daniel Ortega-Zambrano   +2 more
doaj   +1 more source

Topological photonics [PDF]

open access: yesReviews of Modern Physics, 2014
Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light. Drawing inspiration from the discovery of the quantum Hall effects and topological insulators in condensed matter, recent advances have shown how to engineer analogous effects also for ...
Ozawa, Tomoki   +10 more
openaire   +11 more sources

Photon-photon and photon-hadron processes in Pythia 8 [PDF]

open access: yesCERN Proc, 2017
We present a new implementation of photoproduction processes in e+e- and ep collisions into Pythia 8 Monte-Carlo event-generator. In particular we discuss how the parton showers and multiparton interactions are generated with a resolved photon beam and what is the relative contribution from direct processes in different kinematical regions.
Lucian Harland-Lang   +2 more
openaire   +6 more sources

Understanding the Feedback Loops between Energy, Matter and Life

open access: yesFrontiers in Bioscience-Elite, 2022
This review gathers recent findings in biophysics that shed light on the biological principle of self-organization, spanning from molecules to more complicated systems with higher information processing capacity.
Richard H.W. Funk
doaj   +1 more source

Twisted photons: new quantum perspectives in high dimensions [PDF]

open access: yesLight: Science & Applications, 2017
Twisted photons can be used as alphabets to encode information beyond one bit per single photon. This ability offers great potential for quantum information tasks, as well as for the investigation of fundamental questions. In this review article, we give
Manuel Erhard   +3 more
semanticscholar   +1 more source

Effect of dysprosium on the radiation-shielding features of SiO2–PbO–B2O3 glasses

open access: yesOpen Physics, 2023
In a variety of applications using ionizing radiation, it is essential to ensure the safety of both individuals and equipment. To this end, excellent radiation shielding materials, including glasses and rare earth elements, such as Dy2O3, are currently ...
Almuqrin Aljawhara H.   +1 more
doaj   +1 more source

Analyzing the Electronics of Image Sensors and Their Functionality to Develop Low Light-Emitting Source Image

open access: yesApplied System Innovation, 2022
Bioluminescence imaging has been used to visualize the biological effects of human beings and is a promising technique in a recent modality. In this study, the digital image technique is used to improve quality and recover images.
Rai Chiranjeevi   +6 more
doaj   +1 more source

On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar. [PDF]

open access: yesPhysical Review Letters, 2016
Scalable photonic quantum technologies require on-demand single-photon sources with simultaneously high levels of purity, indistinguishability, and efficiency.
X. Ding   +11 more
semanticscholar   +1 more source

Photon–photon scattering: a tutorial [PDF]

open access: yesCanadian Journal of Physics, 2012
Long-established results for low-energy photon–photon scattering, γγ → γγ, have recently been questioned. We analyze that claim and demonstrate that it is inconsistent with experience. We demonstrate that the mistake originates from an erroneous manipulation of divergent integrals and discuss the connection with another recent claim about the Higgs ...
Yi Liang, Andrzej Czarnecki
openaire   +4 more sources

Far-red photons have equivalent efficiency to traditional photosynthetic photons: implications for re-defining photosynthetically active radiation.

open access: yesPlant, Cell and Environment, 2020
Far-red photons (701-750 nm) are abundant in sunlight but are considered inactive for photosynthesis and are thus excluded from the definition of photosynthetically active radiation (PAR; 400 to 700 nm).
Shuyang Zhen, B. Bugbee
semanticscholar   +1 more source

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