Results 51 to 60 of about 297,694 (122)

Single-shot imaging of surface molecular ionization in nanosystems

open access: yesNanophotonics, 2021
Using single-shot velocity map imaging technique, explosion imaging of different ion species ejected from 50 nm SiO2 nanoparticles are obtained excitedly by strong near-infrared and ultraviolet femtosecond laser fields.
Sun Fenghao   +10 more
doaj   +1 more source

High pressure Raman spectroscopic studies of the relaxor ferroelectric 0.85Pb(Zn1/3Nb2/3)O3-0.15PbTiO3

open access: yesAIP Advances, 2015
In situ Raman spectroscopic measurements have been carried out at high pressure up to 33 GPa using a diamond anvil cell to investigate the structural transitions in relaxor ferroelectric 0.85Pb(Zn1/3Nb2/3)O3-0.15PbTiO3.
K. K. Mishra, T. R. Ravindran
doaj   +1 more source

Effects of humidity on performance of electric-double-layer oxide-based thin-film transistors gated by nanogranular SiO2 solid electrolyte

open access: yesAIP Advances, 2013
Electric-double-layer oxide-based thin-film transistors gated by nanogranular SiO2 solid electrolyte have been fabricated at room temperature. The effects of humidity on performances are investigated.
Li-Qiang Guo   +5 more
doaj   +1 more source

Perfect metamaterial absorber improved laser-driven flyer

open access: yesNanophotonics, 2021
Laser driven flyer (LDF) can drive small particles to ultrahigh speed (several km/s) by feeding pulse laser light, and exhibits giant application prospect in both of the civilian and military regions, such as the ignition of missile and spacecraft and ...
Ji Xiangbo   +6 more
doaj   +1 more source

Counter-fitting Word Vectors to Linguistic Constraints [PDF]

open access: yesNorth American Chapter of the Association for Computational Linguistics, 2016
In this work, we present a novel counter-fitting method which injects antonymy and synonymy constraints into vector space representations in order to improve the vectors' capability for judging semantic similarity.
N. Mrksic   +8 more
semanticscholar   +1 more source

Refractive-index determination of solids from first- and second-order critical diffraction angles of periodic surface patterns

open access: yesAIP Advances, 2015
We present two approaches for measuring the refractive index of transparent solids in the visible spectral range based on diffraction gratings. Both require a small spot with a periodic pattern on the surface of the solid, collimated monochromatic light,
Christoph Meichner   +5 more
doaj   +1 more source

Survival probability in Generalized Rosenzweig-Porter random matrix ensemble

open access: yesSciPost Physics, 2019
We study analytically and numerically the dynamics of the generalized Rosenzweig-Porter model, which is known to possess three distinct phases: ergodic, multifractal and localized phases.
Giuseppe De Tomasi, Mohsen Amini, Soumya Bera, Ivan M. Khaymovich, Vladimir E. Kravtsov
doaj   +1 more source

When is .999... less than 1? [PDF]

open access: yesThe Mathematics Enthusiast, 2010
We examine alternative interpretations of the symbol described as nought, point, nine recurring. Is "an infinite number of 9s" merely a figure of speech? How are such alternative interpretations related to infinite cardinalities?
Karin U. Katz, M. Katz
semanticscholar   +1 more source

Supercontinuum ultra wide range confocal microscope for reflectance spectroscopy of living matter and material science surfaces

open access: yesAIP Advances, 2011
We report the design and implementation of a new reflectance laser scanning confocal system with spectroscopy imaging capabilities. Confocal spectroscopy is achieved by using a very broad spectral range supercontinuum source capable of high precision ...
Stefano Selci   +2 more
doaj   +1 more source

Dynamics of hole injection from p-GaN drain of a hybrid drain embedded GIT

open access: yesAIP Advances, 2021
The addition of a p-GaN drain to a conventional gate-injection transistor (GIT), forming the so-called hybrid drain embedded GIT, is crucial in the suppression of the dynamic Rdson.
Jinming Sun   +9 more
doaj   +1 more source

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