scholarly journals Influence of Preparation Method on the Structural, Linear and Nonlinear Optical Properties of TiN Nanoparticles

2021 ◽  
Author(s):  
Mahdi Safa ◽  
Yasser Rajabi ◽  
Mahdi Ardyanian
Keyword(s):  
Optical Properties ◽  
Titanium Nitride ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Tin Nanoparticles ◽  
Vis Spectroscopy ◽  
Optical Applications ◽  
Co Precipitation ◽  
Optical Behavior ◽  
Saturation Absorption

Abstract In this paper, titanium nitride nanoparticles were prepared in three methods, In the first method, titanium nitride nanoparticles were prepared by the Ball-mill method; in the second and third methods, the nanoparticles were synthesized by the sol-gel, and the co-precipitation methods. The samples were characterized by X-ray diffraction (XRD), UV-Vis spectroscopy, and scanning electron microscopy (SEM), for the study of structural, linear optical properties, and surface morphology study, respectively. The Z-scan technique was utilized to study the TiN nanoparticles nonlinearity. A change in nonlinear optical behavior with an increase in input pump power and concentration of the TiN nanoparticles was observed. Results showed that the TiN nanoparticles give new potentials in nonlinear optical applications. The nonlinear optical behavior of the TiN nanoparticles shifts from inverse saturation absorption to saturation absorption with increase of intensity.

Preparation and Nonlinear Optical Properties of Quantum-Sized CuCl-Doped Silica Glass by the Sol-Gel Process

1991 ◽  
Vol 74 (1) ◽  
pp. 238-240 ◽  
Author(s):  
Masayuki Nogami ◽  
Yi-Qing Zhu ◽  
Yoshihide Tohyama ◽  
Katsumi Nagasaka ◽  
Takashi Tokizaki ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silica Glass ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Nonlinear Optical Properties ◽  
Sol Gel Process

scholarly journals Theoretical and experimental comparative studies of nonlinear optical properties for selected melaminium compounds

2010 ◽  
Vol 8 (6) ◽  
pp. 1192-1202 ◽  
Author(s):  
Marek Drozd ◽  
Mariusz Marchewka
Keyword(s):  
Optical Properties ◽  
Acetic Acid ◽  
Nonlinear Optical ◽  
Time Dependent ◽  
X Ray ◽  
Hartree Fock ◽  
Optical Applications ◽  
Experimental Values ◽  
Nonlinear Optical Applications ◽  
Theoretical Results

AbstractThe bis(melaminium) sulphate dihydrate, 2,4,6-triamine-1,3,5-triazin-1,3-ium tartrate monohydrate, 2,4,6-triamine-1,3,5-triazin-1-ium hydrogenphthalate, 2,4,6-triamine-1,3,5-triazin-1-ium acetate acetic acid solvate monohydrate, 2,4,6-triamine-1,3,5-triazin-1-ium bis(selenate) trihydrate, melaminium diperchlorate hydrate, melaminium bis(trichloroacetate) monohydrate and melaminium bis(4-hydroxybenzenesulphonate) dihydrate were discovered recently as perspective materials for nonlinear optical applications. On the basis of X-ray structures for eight melaminium compounds the time dependent Hartree Fock (TDHF) method was used for calculation of the polarizability, and first and second hyperpolarizability. Detailed directional studies of calculated hyperpolarizability for all investigated melaminium compounds are shown. The theoretical results are compared with experimental values of β.

The Structural, Magnetic and Optical Properties of Ni-Mg-Zn Ferrite Prepared With Different Complexing Agents via Sol-Gel Method

2021 ◽  
Author(s):  
Yanchun Zhang ◽  
Aimin Sun ◽  
Zhaxi Suonan
Keyword(s):  
Optical Properties ◽  
Electron Microscope ◽  
Sol Gel ◽  
Complexing Agents ◽  
Complexing Agent ◽  
Gel Method ◽  
X Ray ◽  
Sol Gel Method ◽  
Zn Ferrite ◽  
Vis Spectroscopy

Abstract Different complexing agents were used to prepare Ni-Mg-Zn ferrite with the composition formula Ni0.2Mg0.2Zn0.6Fe2O4 via sol-gel method, which included citric acid, oxalic acid, egg white and EDTA. The Ni0.2Mg0.2Zn0.6Fe2O4 ferrite with no complexing agent was also prepared as a comparison. The chemical phases of samples were analyzed by the X-ray diffraction (XRD), which indicated that samples had spinel phase structure. The lattice constants of samples are in the range of 8.3980 ~ 8.4089 Å. The composition and structure were further studied by fourier transform infrared spectroscopy (FTIR). There were two typical characteristic bands related to the stretching vibrations of spinel ferrite in FTIR spectra. Scanning electron microscope (SEM) micrographs and transmission electron microscope (TEM) images showed that the particles have the shape of spherical cube. Energy dispersive spectrometer (EDS) analyzed the elements and ingredients of samples, which included Ni, Mg, Zn, Fe and O. X-ray photoelectron spectroscopy (XPS) is used to examine further the elemental composition and chemical state of sample prepared with EDTA as complexing agent. The optical properties of samples were investigated by photoluminescence spectra and UV-Vis spectroscopy. Vibrating sample magnetometer (VSM) was used to characterize magnetic properties, hysteresis loops revealed the ferrimagnetism behavior of prepared samples.

Synthesis and nonlinear optical properties of a cross-linkable system using sol-gel approach

2012 ◽  
Vol 358 (6-7) ◽  
pp. 1003-1008 ◽  
Author(s):  
Rong Zhang ◽  
Shuhui Bo ◽  
Jialei Liu ◽  
Tingting Zhou ◽  
Ling Qiu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Nonlinear Optical Properties

Nonlinear optical properties of Cu x S and CuInS2 semiconductor nanoparticles in sol-gel glass

2000 ◽  
Vol 67 (4) ◽  
pp. 699-704 ◽  
Author(s):  
A. M. Malyarevich ◽  
N. N. Posnov ◽  
K. V. Yumashev ◽  
V. S. Gurin ◽  
A. A. Alekseenko ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Sol Gel ◽  
Semiconductor Nanoparticles ◽  
Nonlinear Optical Properties

A thorough understanding of the nonlinear optical properties of BODIPY/carborane/diketopyrrolopyrrole hybrid chromophores: module contribution, linear combination, one-/two-dimensional difference and carborane's arrangement

2019 ◽  
Vol 7 (25) ◽  
pp. 7531-7547 ◽  
Author(s):  
Hong-Qiang Wang ◽  
Jin-Ting Ye ◽  
Yuan Zhang ◽  
Yuan-Yuan Zhao ◽  
Yong-Qing Qiu
Keyword(s):  
Optical Properties ◽  
Linear Combination ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Two Dimensional ◽  
Optical Applications ◽  
Nonlinear Optical Applications

The high modularity of multicomponent photoactive BODIPY/carborane/diketopyrrolopyrrole hybrid chromophores was explored for linear/nonlinear optical applications.

scholarly journals Fabrication of Ag-modified hollow titania spheres via controlled silver diffusion in Ag–TiO2 core–shell nanostructures

2020 ◽  
Vol 11 ◽  
pp. 141-146 ◽  
Author(s):  
Bartosz Bartosewicz ◽  
Malwina Liszewska ◽  
Bogusław Budner ◽  
Marta Michalska-Domańska ◽  
Krzysztof Kopczyński ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Hollow Spheres ◽  
Good Control ◽  
Structural Features ◽  
Noble Metal Nanoparticles ◽  
Simple Method ◽  
Vis Spectroscopy ◽  
Silver Diffusion

Inorganic hollow spheres find a growing number of applications in many fields, including catalysis and solar cells. Hence, a simple fabrication method with a low number of simple steps is desired, which would allow for good control over the structural features and physicochemical properties of titania hollow spheres modified with noble metal nanoparticles. A simple method employing sol–gel coating of nanoparticles with titania followed by controlled silver diffusion was developed and applied for the synthesis of Ag-modified hollow TiO2 spheres. The morphology of the synthesized structures and their chemical composition was investigated using SEM and X-ray photoelectron spectroscopy, respectively. The optical properties of the synthesized structures were characterized using UV–vis spectroscopy. Ag–TiO2 hollow nanostructures with different optical properties were prepared simply by a change of the annealing time in the last fabrication step. The synthesized nanostructures exhibit a broadband optical absorption in the UV–vis range.

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