Self-diffraction and high nonlinear optical properties of carbon nanotubes under CW and pulsed laser illumination

Ara, M.H. Majles; Akheratdoost, H.; Koushki, E.

doi:10.1016/j.molliq.2015.01.053

Cited by 27 publications

(3 citation statements)

References 30 publications

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“…The examples of these methods are sol-gel, chemical precipitation, hydrothermal, and polyol reduction, which were succeeded to synthesis multicomponents elements with high yield. However, all of these methods lack the purity of the final product that is associated with minor products from the precursor elements, which appeared in the impurities form [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Mostafa

Awwad

2021

Preprint

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Keeping in view the fascinating properties of noble materials in the nanoscale, we synthesized nanocomposite materials from metals of Au and Ag in the form of core/shell structure by a simple, eco-friendly, inexpensive, smart, and fast method. This method is pulsed laser ablation of Ag plate immersed in chloroauric acid solution using Nd:YAG solid state laser (1064nm, 7ns, 10Hz). The physicochemical investigations were presented by different techniques to investigate its structural characterization, morphological and optical characterization including linear and nonlinear properties. These techniques confirmed that produced sample has a crystalline structure from Au an Ag structure, and its morphology has a core/shell structure with Au in shell and Ag in core. The nonlinear optical characterization of the prepared sample was investigated by Z-scan technique using the second harmonic of the same laser source. The prepared sample of Au@Ag core/shell showed a tuning of nonlinearity characteristic property between that of the nanoparticles from Au or Ag. So, this material could be represented a recommended nonlinear material to be a promising candidate for optical limiting applications

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Section: Introductionmentioning

confidence: 99%

Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Mostafa

Awwad

2021

Preprint

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“…Currently, the methods available for direct measurement of these two parameters are mentioned in [18], the Z-scan method [19,20] is considered the best because its requirements are simple compared to other methods that require difficult requirements [21,22], its results are very accurate and it has the ability to calculate the real and imaginary parts of the nonlinear optical third-order susceptibility separately. This technique has been used during the last three decades by many researchers to calculate the n 2 and ( ) c 3 of vast number of materials [23][24][25][26][27][28][29][30][31][32][33]. In the indirect measurements the use of the results of the absorption and transmission spectra of the material and theoretical formulas for calculating the nonlinear optical third-order susceptibility and nonlinear index of refraction, also this method was used by researchers in recent years [34][35][36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

et al. 2020

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Eriochrome Black T doped polyvinyl alcohol film was prepared on a glass substrate via the casting method. Optical microscope image of the film was taken by an optical microscope and analyzed by an Image J and origin 2008 software where it was proved that the film was free of defects and holes and uniformly distributed over entire area of the substrate. The optical constants of the film were calculated via the optical absorbance and transmittance in the wavelength range 350–900 nm via the use of a set of known mathematical formulas together with Wemple and DiDomenico model. The optical conductivity and the electrical conductivity of the prepared film in response to external electric filed are obtained using two more equations where it was found that the prepared film have high optical conductivity of the order of 1012 s−1 and an electrical conductivity of the order of 104 (S cm−1).

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“…efeitos não lineares do grafeno [48], nanosheets [49,50], nanopartículas [51] e nanotubos de carbono [52]. A intensidade I de uma onda monocromática é definida como a quantidade de energia a qual passa, em uma unidade de tempo, uma unidade de área perpendicular à direção do fluxo de energia.…”

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Medidas de parâmetros termo-ópticos e de eficiência quântica da fluorescência em líquidos por interferometria e difração cônica de origem fototérmica.

Lima¹

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Medidas de parâmetros termo-ópticos e de eficiência quântica da fluorescência em líquidos por interferometria e difração cônica de origem fototérmica Dissertação apresentada ao Programa de Pós-Graduação em Física do Instituto de Física da Universidade Federal de Uberlândia, como parte dos requisitos para a obtenção do grau de mestre em física. Orientadora: Prof a. Dra. Viviane Pilla Coorientador: Prof. Dr. Djalmir Nestor Messias UBERLÂNDIA-MG 2018 i work, a Mach-Zehnder interferometer type was used. The values of K obtained with this approach are in agreement with the literature. The CD technique was applied in a chromophore derived from vitamin B6 diluted in different solvents, in anthocyanin extracted in three different solvents, and in CdSe/CdS and CdSe/ZnS core/shell QDs with different sizes (1.9, 2.0 and 4.0 nm) functionalized with hydroxyl (R-OH) and carboxyl (R-COOH) groups, or nonfunctionalized in aqueous solution. Therefore, the proposed method was applied in the characterization of thermo-optical parameters, and it can serve as a low cost optical approach for the determination of the K value in unknown liquid samples.

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Self-diffraction and high nonlinear optical properties of carbon nanotubes under CW and pulsed laser illumination

Cited by 27 publications

References 30 publications

Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

Medidas de parâmetros termo-ópticos e de eficiência quântica da fluorescência em líquidos por interferometria e difração cônica de origem fototérmica.

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Self-diffraction and high nonlinear optical properties of carbon nanotubes under CW and pulsed laser illumination

Cited by 27 publications

References 30 publications

Au@Ag&nbsp;Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Au@Ag&nbsp;Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Characterizing optical and morphological properties of Eriochrome Black T doped polyvinyl alcohol film

Medidas de parâmetros termo-ópticos e de eficiência quântica da fluorescência em líquidos por interferometria e difração cônica de origem fototérmica.

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Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications

Au@Ag Core/Shell Nanoparticles Prepared by Laser-Assisted Method for Optical Limiting Applications