Results 11 to 20 of about 2,145,358 (282)

A Comprehensive Review on Study Methods of Aerosol Optical Properties in Different Dimensions

open access: yesIEEE Access, 2023
A comprehensive understanding of the optical properties of atmospheric aerosol is essential for a variety of applications, such as optical imaging, optical communication, and remote sensing. In recent years, many theories and numerical simulation methods
Yu Liu, Jianhua Huang, Feng Huang
doaj   +1 more source

Optical properties of lowest-energy carbon allotropes from the first-principles calculations [PDF]

open access: yes, 2017
We study the optical properties of lowest-energy carbon allotropes in the infrared, visible and ultra-violet ranges of light in the general gradient approximation of the density functional theory.
Saleev, Vladimir, Shipilova, Alexandra
core   +2 more sources

Evaluation of the optical switching characteristics of erbium-doped fibres for the development of a fibre Bragg grating sensor interrogator [PDF]

open access: yes, 2014
A polling topology that employs optical switching based on the properties of erbium-doped fibres (EDFs) is used to interrogate an array of FBGs. The properties of the EDF are investigated in its pumped and un-pumped states and the EDFs’ switching ...
Bhattacharyya, Debabrata   +7 more
core   +1 more source

Nonlinear optical crystalline nature bis (2,6-diaminopyridinium) hydrogen phthalate nitrate monohydrate (APPN): Development and its phase matching nature

open access: yesResults in Optics, 2021
Bis (2,6-Diaminopyridinium) single crystal hydrogen phthalate nitrate monohydrate (APPN) has been successfully cultivated via the growth method of slow evaporation solution. A single crystal X-ray diffraction analysis has confirmed the lattice parameters
P. Vivek   +7 more
doaj   +1 more source

Nontoxic pyrite iron sulfide nanocrystals as second electron acceptor in PTB7:PC71BM-based organic photovoltaic cells

open access: yesBeilstein Journal of Nanotechnology, 2019
Herein, we report the synthesis of nontoxic pyrite iron sulfide (FeS2) nanocrystals (NCs) using a two-pot method. Moreover, we study the influence of these NCs incorporated into the PTB7:PC71BM active layer of bulk-heterojunction ternary organic ...
Olivia Amargós-Reyes   +7 more
doaj   +1 more source

Electronic depth profiles with atomic layer resolution from resonant soft x-ray reflectivity [PDF]

open access: yes, 2015
The analysis of x-ray reflectivity data from artificial heterostructures usually relies on the homogeneity of optical properties of the constituent materials.
Alff, L.   +10 more
core   +2 more sources

Synthesis, Optical and Electrical Properties of ZnFe2O4 Nanocomposites

open access: yesNanomaterials and Nanotechnology, 2012
ZnFe2O4 nanocomposites have been prepared by a simple co‐precipitation method. The prepared samples were characterized by Scanning Electron Microscopy (SEM), Powder X‐ray Diffraction (XRD), Energy Disperse X‐ray Analysis (EDX), Transmission electron ...
G.S. Yashavanth Kumar   +4 more
doaj   +1 more source

Emerging giant resonant exciton induced by Ta-substitution in anatase TiO$_{2}$: a tunable correlation effect [PDF]

open access: yes, 2016
Titanium dioxide (TiO$_2$) has rich physical properties with potential implications in both fundamental physics and new applications. Up-to-date, the main focus of applied research is to tune its optical properties, which is usually done via doping and ...
Asmara, T. C.   +13 more
core   +2 more sources

Gallium ion implantation greatly reduces thermal conductivity and enhances electronic one of ZnO nanowires

open access: yesAIP Advances, 2014
The electrical and thermal conductivities are measured for individual zinc oxide (ZnO) nanowires with and without gallium ion (Ga+) implantation at room temperature.
Minggang Xia   +7 more
doaj   +1 more source

Physical and Methodological Perspectives on the Optical Properties of Biological Samples: A Review

open access: yesPhotonics, 2021
The optical properties of biological systems can be measured by imaging and microscopy methodologies. The use of X-rays, γ-radiation and electron microscopy provides information about the contents and functions of the systems. The need to develop imaging
George I. Lambrou   +4 more
doaj   +1 more source

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