Results 31 to 40 of about 16,813,404 (391)

Recent progress on the electronic structure, defect, and doping properties of Ga2O3

open access: yesAPL Materials, 2020
Gallium oxide (Ga2O3) is an emerging wide bandgap semiconductor that has attracted a large amount of interest due to its ultra-large bandgap of 4.8 eV, a high breakdown field of 8 MV/cm, and high thermal stability.
Jiaye Zhang   +4 more
semanticscholar   +1 more source

A Reverse-Design Strategy for the Track Error of the Qi Tai Telescope Based on Pointing Accuracy

open access: yesEngineering, 2022
The Qi Tai Telescope (QTT), which has a 110 m aperture, is planned to be the largest scale steerable telescope in the world. Ideally, the telescope’s repeated pointing accuracy error should be less than 2.5 arc seconds (arcsec); thus, the telescope ...
Na Li   +4 more
doaj   +1 more source

Computational Complexity in Electronic Structure [PDF]

open access: yes, 2012
In quantum chemistry, the price paid by all known efficient model chemistries is either the truncation of the Hilbert space or uncontrolled approximations.
Aaronson   +80 more
core   +3 more sources

Electronic structure of turbostratic graphene [PDF]

open access: yes, 2010
We explore the rotational degree of freedom between graphene layers via the simple prototype of the graphene twist bilayer, i.e., two layers rotated by some angle $\theta$.
E. Kandelaki   +4 more
core   +1 more source

Multiple-Beam Steering Using Graphene-Based Coding Metasurfaces

open access: yesMicromachines, 2023
Recently, the coding metasurface has gained significant attention due to its exceptional potential in controlling electromagnetic (EM) waves with the rapid development of wireless communication systems.
Bin Zheng   +5 more
doaj   +1 more source

Real-Time Time-Dependent Electronic Structure Theory.

open access: yesChemical Reviews, 2020
Real-time electronic structure methods provide an unprecedented view of electron dynamics and ultrafast spectroscopy on the atto- and femtosecond time scale with vast potential to yield new insights into the electronic behavior of molecules and materials.
Xiaosong Li   +4 more
semanticscholar   +1 more source

Investigations on the Bragg grating recording in all-silica, standard and microstructured optical fibers using 248 nm, 5 ps laser radiation [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2009
The fabrication of Bragg reflectors in hydrogenated, all-silica, fluorine cladding depressed and microstructured optical fibers using 248 nm, 5 ps laser radiation, is investigated here.
Pissadakis S.   +2 more
doaj   +1 more source

The Driving Waveform Design Method of Power-Law Fluid Piezoelectric Printing Based on Iterative Learning Control

open access: yesSensors, 2022
In some applications of piezoelectric three-dimensional inkjet printing, the materials used are power-law fluids as they are shear thinning. Their time-varying viscosities affect the droplet formation, which is determined by the volume flow rate at the ...
Ju Peng   +5 more
doaj   +1 more source

Laser-Induced Morphological and Structural Changes of Cesium Lead Bromide Nanocrystals

open access: yesNanomaterials, 2022
Metal halide perovskite nanocrystals, an emerging class of materials for advanced photonic and optoelectronic applications, are mainly fabricated with colloidal chemistry routes.
Athanasia Kostopoulou   +9 more
doaj   +1 more source

Listening to laser light interactions with objects of art: a novel photoacoustic approach for diagnosis and monitoring of laser cleaning interventions

open access: yesHeritage Science, 2020
Photoacoustic (PA) imaging is a novel, rapidly expanding diagnostic technique, which has been predominately developed in the context of contemporary biomedical research studies.
George J. Tserevelakis   +2 more
doaj   +1 more source

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