Near infrared nonlinear refractive index dispersion of metallic and semiconducting single-wall carbon nanotube colloids

Brandão-Silva, Antônio C.; Lima, Rogério M.A.; Fantini, C.; Jesus‐Silva, Alcenísio J.; Alencar, Márcio A. R. C.; Hickmann, Jandir M.; Jain, Rishabh; Strano, Michael S.; Fonseca, E. J. S.

doi:10.1016/j.carbon.2014.06.008

Cited by 14 publications

(3 citation statements)

References 32 publications

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“…The TM EZ-scan has been exploited to measure nonlinearities in thin films [100], bulk tellurite and tungstate based glasses [100,101], and gold nanoparticles embedded in soda lime glasses [102]. In a recent report [103], this method was employed to characterize the NL refractive index dispersion of metallic and semiconducting single-wall carbon nanotube colloids (aqueous solution) in the near-infrared. Using a tunable (755 nm to 825 nm), high repetition rate (76 MHz), femtosecond (200 fs) laser, the authors were able to determine the NL refractive index of the nanotubes.…”

Section: Thermally Managed Z-scan (Tm Z-scan)mentioning

confidence: 99%

Techniques for nonlinear optical characterization of materials: a review

Araújo¹,

Gomes²,

Boudebs³

2016

Rep. Prog. Phys.

133

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Various techniques to characterize the nonlinear (NL) optical response of centro-symmetric materials are presented and evaluated with emphasis on the relationship between the macroscopic measurable quantities and the microscopic properties of photonic materials. NL refraction and NL absorption of the materials are the phenomena of major interest. The dependence of the NL refraction and NL absorption coefficients on the nature of the materials was studied as well as on the laser excitation characteristics of wavelength, intensity, spatial profile, pulse duration and pulses repetition rate. Selected experimental results are discussed and illustrated. The various techniques currently available were compared and their relative advantages and drawbacks were evaluated. Critical comparisons among established techniques provided elements to evaluate their accuracies and sensitivities with respect to novel methods that present improvements with respect to the conventional techniques.

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Section: Thermally Managed Z-scan (Tm Z-scan)mentioning

confidence: 99%

Techniques for nonlinear optical characterization of materials: a review

Araújo¹,

Gomes²,

Boudebs³

2016

Rep. Prog. Phys.

133

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“…The technical devices using carbon nanomaterials in aqueous surfactants dispersions are improved [5]. Dispersions of nanoparticles are used also for modifying the properties of various technological media.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotubes Microenvironment in Ionic Surfactant Water Solutions

Зуева

Mongush

Makarova

2018

SSP

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The processes of aggregation of anionic (SDS) and cationic (CTAB) molecules into supramolecular formations and the effect of carbon nanotubes on the processes were investigated by conductometry and tensiometry methods. Concentration dependences of the specific electrical conductivity and surface tension of aqueous SDS and CTAB dispersions and suspensions of carbon nanotubes of the carbon nanomaterial Taunit in these dispersions were obtained. A conclusion on the change in the conformation of CTAB micelles in the presence of carbon nanotubes was drawn. A significant increase in the packing density of CTAB molecules and their ordering in the monomolecular layer at the water-air interface in the presence of carbon nanotubes was shown. In particular, this makes it possible to control the properties of the surfactant surface layer by means of carbon nanotubes.

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“…The unique optical properties of semiconducting nanotubes are related to their ability for near-infrared emission under electrical or optical excitation with certain parameters [6]. The important role the non-linear optical properties of CNT are playing [7,8], including the ability to limit non-linear laser irradiation with increasing intensity [9,10]. The technical devices using carbon nanomaterials in aqueous dispersions of surfactants are improved [11,12].…”

Section: Introductionmentioning

confidence: 99%