Enhanced third-order optical susceptibility in Ag-doped CeO2 nanostructures under pulsed Nd-YVO4 laser

Haghighatzadeh, Azadeh

doi:10.1016/j.optlastec.2020.106114

Cited by 21 publications

(2 citation statements)

References 53 publications

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“…Merikhi et al examined magneto-optical Kerr effect in ZnTMO 2 chalcopyrite, where TM was chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co) and nickel (Ni) by considering that polar Kerr angles range from the infrared (IR) to ultraviolet (UV) radiation [18]. In an earlier work, we have reported enhanced Kerr-type third-order optical susceptibility for silver/cerium oxide (Ag/CeO 2 ) Schottky-type nanostructures with near infrared irradiation [19,20].…”

Section: Introductionmentioning

confidence: 99%

Hollow ZnO microspheres self-assembled from rod-like nanostructures: morphology-dependent linear and Kerr-type nonlinear optical properties

Haghighatzadeh

Mazinani

Ostad

et al. 2021

J Mater Sci: Mater Electron

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Hollow nanostructures have attracted attention because of their unique physiochemical properties and broad potential applications in electronics, optics and photonics. In this study, a facile hydrothermal approach was developed to fabricate hollow ZnO microspheres via self-assembled rod-like nanostructures. The morphology-controlled synthesis was conducted by altering hydrothermal treatment temperature (150, 200 and 250 °C) in solutions containing zinc acetate dihydrate precursor and glycerol as the stabilizing agent. The morphological observations indicated that hydrothermally grown ZnO architectures could be reasonably adjusted by modulating hydrothermal reaction temperature. Possible growth routes are proposed to elucidate the formation process of ZnO microspheres with the rod-like nanostructures. Morphology-dependent absorbance and emission along with red-shifts with improved crystalline qualities were observed with increasing hydrothermal growth temperature. Kerr-type nonlinear optical characteristics examined using single-beam Z-scan technique in the near infrared spectral range under nanosecond Nd-YVO4 laser pulses showed positive values of nonlinear refraction providing an evidence of self-focusing behaviors at the excitation wavelength of 1064 nm in all the samples studied. The highest Kerr-type nonlinear susceptibility was estimated to be 2.31 × 10–6 esu for hollow ZnO microspheres grown at 250 °C, suggesting synergistic effects of surface morphologies on optical nonlinearities.

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Section: Introductionmentioning

confidence: 99%

Hollow ZnO microspheres self-assembled from rod-like nanostructures: morphology-dependent linear and Kerr-type nonlinear optical properties

Haghighatzadeh

Mazinani

Ostad

et al. 2021

J Mater Sci: Mater Electron

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“…Cerium oxide (CeO 2 ) is an attractive material with various applications, mainly for automobile catalytic converters to decrease pollutants, as well as solid oxide fuel-cell technologies and optical equipment [1][2][3][4][5][6][7][8][9][10]. Due to the importance of the CeO 2 properties, such as a high dielectric constant as well as a good epitaxial layer on Si, it is also viewed as a prospective material for future microelectronic applications.…”

Section: Introductionmentioning

confidence: 99%

Fe-doped effects on phase transition and electronic structure of CeO2 under compressed conditions from ab initio calculations

et al. 2021

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Ab initio study of high-pressure phase transition and electronic structure of Fe-doped CeO2 with Fe concentrations of 3.125, 6.25, and 12.5 at% has been reported. At a constant-pressure consideration, the lattice constants and the volume of the supercell were decreased with an increasing concentration of Fe. The average bond length of Fe–O is lower than that of Ce–O. As a result, Fe doping induces the reduced volume of the cell, which is in good agreement with previous experiments. At high pressure (~ 30 GPa), it was found that the transition pressure from the fluorite to the cotunnite orthorhombic phase decreases at a higher concentration of Fe, indicating that the formation energy of the compound is induced by Fe-doping. Furthermore, compression leads to interesting electronic properties too. Under higher pressures, the bandgap increases in the cubic structure under compression and then suddenly plummets after the transition to the orthorhombic phase. The 3d states of Fe mainly induced the impurity states in the bandgap. In both the undoped and Fe-doped systems, the bandgap increased in the cubic phase at high pressure, while the gap and p-d hybridization decrease in the orthorhombic phase.

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Study on Second- and Third-Order Nonlinear Optical Properties in Metallic Nanoparticles

Torres-Torres

García-Beltrán

2022

Optical Nonlinearities in Nanostructured Systems

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Enhanced third-order optical susceptibility in Ag-doped CeO2 nanostructures under pulsed Nd-YVO4 laser

Cited by 21 publications

References 53 publications

Hollow ZnO microspheres self-assembled from rod-like nanostructures: morphology-dependent linear and Kerr-type nonlinear optical properties

Hollow ZnO microspheres self-assembled from rod-like nanostructures: morphology-dependent linear and Kerr-type nonlinear optical properties

Fe-doped effects on phase transition and electronic structure of CeO2 under compressed conditions from ab initio calculations

Study on Second- and Third-Order Nonlinear Optical Properties in Metallic Nanoparticles

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