Results 11 to 20 of about 3,342,047 (255)

High Hydrogen Ion Concentration Causes a Blue Shift in Gold Nanoparticles

open access: yesCrystals, 2021
In this research, our team used a rare electrochemical method to obtain gold nanoparticles (GNPs). The growth solution has been added with nitric acid in order to observe the effect of GNPs. The solution also included cetyltrimethylammonium bromide (CTAB)
Po-Yen Lin   +2 more
doaj   +1 more source

Relation between Halogen Bond Strength and IR and NMR Spectroscopic Markers

open access: yesMolecules, 2023
The relationship between the strength of a halogen bond (XB) and various IR and NMR spectroscopic quantities is assessed through DFT calculations. Three different Lewis acids place a Br or I atom on a phenyl ring; each is paired with a collection of N ...
Akhtam Amonov, Steve Scheiner
doaj   +1 more source

Temperature and Pulse-Energy Range Suitable for Femtosecond Pulse Transmission in Si Nanowire Waveguide

open access: yesApplied Sciences, 2020
We experimentally measured the femtosecond pulse transmission through a silicon-on-insulator (SOI) nanowire waveguide under different temperatures and input pulse energy with a cross-correlation frequency-resolved optical gating (XFROG) measurement setup.
Xiaochun Wang   +4 more
doaj   +1 more source

Photoluminescence Revealed Higher Order Plasmonic Resonance Modes and Their Unexpected Frequency Blue Shifts in Silver-Coated Silica Nanoparticle Antennas

open access: yesApplied Sciences, 2019
Higher order plasmonic resonance modes and their frequency blue shifts in silver-coated silica nanoparticle antennas are studied. Synthesizing them with a wet chemistry method, silica (SiO2) nanoparticles were enclosed within silver shells with different
Atta Ur Rahman   +7 more
doaj   +1 more source

Metallo-Dielectric Photonic Crystals and Bandgap Blue-Shift

open access: yes, 2021
One of the most appealing aspects of photonic crystal structures is the photonic bandgap created in structures with sufficiently high dielectric contrasts between constituent materials.
Alex Lonergan (14388171)   +2 more
core   +1 more source

Spectral Shifts of Nonadiabatic High-Order Harmonic Generation

open access: yesApplied Sciences, 2013
High-order harmonic generation (HHG) is a nonlinear nonperturbative process in ultrashort intense laser-matter interaction. It is the main source of coherent attosecond (1 as = 10−18 s) laser pulses to investigate ultrafast electron dynamics.
André D. Bandrauk, Xue-Bin Bian
doaj   +1 more source

Blue-light background impairs visual exogenous attention shift

open access: yesScientific Reports, 2023
Previous research into the effects of blue light on visual-spatial attention has yielded mixed results due to a lack of properly controlling critical factors like S-cone stimulation, ipRGCs stimulation, and color.
Chien-Chun Yang   +2 more
doaj   +1 more source

Structural and Optical Properties of Nanocrystalline Pbs Thin Films Prepared by Microwave-Assisted Chemical Bath Deposition

open access: yesEurasian Journal of Science and Engineering, 2022
Nanocrystalline lead sulfide (PbS) thin films have been successfully deposited onto glass substrate via microwave assisted chemical bath deposition.
Muhammed Husham
doaj  

Response of Photonic Hydrogels of Homogeneous Particles to Uranyl Ions in Aqueous Solutions

open access: yesPhotonic Sensors, 2023
We study here the response of photonic hydrogels (PHs), made of photonic crystals of homogeneous silica particles in polyacrylamide hydrogels (SPHs), to the uranyl ions UO 2 2+ in aqueous solutions. It is found that the reflection spectra of the SPH show
R. G. Joshi   +4 more
doaj   +1 more source

Blue Tiger Leader April 2015 Issue [PDF]

open access: yes, 2015
Blue Tiger Leader is published twice during each semester by the Lincoln University (MO) Army ROTC Blue Tiger Battalion.https://bluetigercommons.lincolnu.edu/rotc_leader/1001/thumbnail ...
Lincoln University Army ROTC Blue Tiger Battalion
core   +1 more source

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