Results 21 to 30 of about 228,996 (261)

Relativistic stability of positronium atoms in a linearly polarized high frequency super-intense laser field

open access: yesResults in Physics, 2021
Utilizing the relativistically corrected Krammers-Henneberger (KH) potential in the high frequency Floquet theory (HFFT), the ground state of the positronium (Ps) atom in a linearly polarized high frequency super-intense laser field is investigated ...
Yifan Xing   +4 more
doaj   +1 more source

Synthesis and Spectroscopy of Buckminsterfullerene Cation C60+ in a Cryogenic Ion Trapping Instrument

open access: yesCrystals, 2021
The assignment of several diffuse interstellar bands in the near-infrared to C60+ ions present at high abundance in space has renewed interest in the astrochemical importance of fullerenes and analogues.
Ewen K. Campbell   +2 more
doaj   +1 more source

Subnanosecond Marx Generators for Picosecond Gain-Switched Laser Diodes

open access: yesIEEE Photonics Journal
High precision time-of-flight based light detection and ranging (LiDAR) system needs compact ultrafast pulsed lasers, such as gain-switched semiconductor laser diodes, which have the advantages of low cost, small size, and mass-producible, for short ...
Fuyi Cao   +10 more
doaj   +1 more source

New Heteroleptic 3D Metal Complexes: Synthesis, Antimicrobial and Solubilization Parameters

open access: yesMolecules, 2020
The microbial resistance to current antibiotics is increasing day by day, which in turn accelerating the development of new effective drugs. Several studies have proved the high antimicrobial potential of the interaction of several organic ligands with a
Muhammad Babar Taj   +8 more
doaj   +1 more source

Degradation of cosmetic ingredient methylparaben by zinc oxide nanoparticles, aided by sonication, light or a combination of sonication and light

open access: yesJournal of Taibah University for Science, 2022
Parabens are frequently used in cosmetics and their high quantities in wastewater are detrimental to the ecosystem. The effect of sonication, light aid and a combination of both on nano-sized zinc oxide-mediated degradation of methylparaben (MP) was ...
Syed W. H. Shah   +4 more
doaj   +1 more source

Theory of Electron Spectroscopies [PDF]

open access: yes, 2001
The basic theory of photoemission, inverse photoemission, Auger-electron and appearance-potential spectroscopy is developed within a unified framework starting from Fermi's golden rule. The spin-resolved and temperature-dependent appearance-potential spectroscopy of band-ferromagnetic transition metals is studied in detail.
openaire   +2 more sources

Efficient Optical Modulation of Exciton State Population in Monolayer MoS2 at Room Temperature

open access: yesNanomaterials, 2022
The modulation of exciton energy and state density of layer-structured transition metal dichalcogenides (TMDs) is required for diverse optoelectronic device applications.
Zeqian Ren   +9 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Sparse point spread function-based multi-image optical encryption

open access: yesCommunications Physics
Multi-image optical encryption (MOE) has demonstrated promising potential in image data protection owing to its parallel processing capability and abundant degrees of freedom.
Ning Xu   +11 more
doaj   +1 more source

Two-Dimensional Control of Rydberg Fragment Emission in Dissociative Frustrated Ionization of Oxygen

open access: yesUltrafast Science
Advances in producing tailored ultrashort laser pulses have enabled the generation and control of molecular dissociative Rydberg excitation along the polarization axis of the laser field.
Junyang Ma   +8 more
doaj   +1 more source

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