Refractive Index of Organic Systems Doped with Nano-Objects

Каманина, Н. В.; Uskokovic, Dragan

doi:10.1080/10426910802157722

Cited by 28 publications

(32 citation statements)

References 21 publications

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“…A detailed study of the refractive properties of the fullerene sensitized LC has permitted to propose the model connected with the increased dipole moment via increased barrier free electron pathway and the number of the delocalized charge at fullerene molecules. This model has been shown in the paper [74] and extended using other nanoparticles as promising intermolecular sensitizers in the papers [75][76][77]. It has been shown that in such sensitized organic conjugated systems the pathway of the charge transfer carrier is changed due to a fact that charge transfers from the intramolecular donor fragment of organic conjugated molecules (such as polyimide, polyaniline, pyridine, etc.)…”

Section: Obtained Results and Discussionmentioning

confidence: 99%

Peculiarity of the Optical Limiting Effect in the Organics Doped With the Fullerenes and With the Relative Nanoparticles

Каманина¹

2017

RadJ

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Abstract. Due to important features of the organic -conjugated nano-objects-doped systems, main properties of which can compete with the basic inorganic bulk material parameters, the study of the organics is dominant. As the effective nano-objects and the intermolecular sensitizers, the following nanoparticles, such as fullerenes, nanotubes, quantum dots, reduced graphene oxide, shungites, etc. have been considered. So many applications of the organic materials doped with nanoparticles have been proposed. Among them, the optical limiting effect occupies a unique place because this process permits, on the one side, to extend the knowledge about the photorefractive features of innovative materials and, from the other side, it is predicted to develop new devices to protect human eyes and technical equipment from high energy density of the laser beam. In the current short review paper, the optical limiting effect will be considered based on the results obtained by some scientific and engineering teams. The data will be shown at the different experimental conditions: the content of the nano-sensitizers can be changed, the range of the wave lengths can be extended, and the level of the attenuation of the laser beam can be varied. It should be mentioned that the experimental wave length can be as the following: 532, 805, 1047, 1064, 1315, 1500, 2940 nm. The materials and optical element based on the structured organics will be shown under the application of the traditional optical limiting scheme and using the four-wave mixing technique to indicate energy losses via diffraction under the Raman-Nath diffraction conditions as one of the optical limiting mechanisms. The level of the attenuation of the laser beam will be shown for the organics based on polyimides, 2-cycloactyl-amine-5-nitropyridine, 2-(n-prolinol)-5-nitropyridine, liquid crystals and other materials. Some ways to form organic photonic crystals will be discussed.

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Section: Obtained Results and Discussionmentioning

confidence: 99%

Peculiarity of the Optical Limiting Effect in the Organics Doped With the Fullerenes and With the Relative Nanoparticles

Каманина¹

2017

RadJ

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“…Table III presents the comparative data [7][8] of laser--induced changes in the refractive index of organics based on polyimides (PIs), N -(4-nitrophenyl)-(L)-prolinol, 2--(N -prolinol)-5-nitropyridine compounds for the previous experiments and the current ones. Laser-induced change in the refractive index ∆n i has been calculated via Eq.…”

Section: Directionmentioning

confidence: 99%

Nanostructured Materials for Optoelectronic Applications

Каманина¹,

Vasilyev²,

Serov³

et al. 2010

Acta Phys. Pol. A

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Study and optimization of new nanoscale materials useful for optoelectronic application have been considered. The search for the effective nanostructured materials has been revealed in two directions: to optimize the mechanical hardness of the inorganic systems and to increase the photorefractive parameters of the organics with nanoobjects. It has been testified that the surface mechanical properties of the inorganic materials via nanotubes treatment process can be drastically improved. For example, the surface mechanical hardness of the UV and IR range soft materials can be increased up to 3-10 times under the conditions of oriented nanotubes placement. It has been obtained that the nonlinear optical characteristics (nonlinear refraction n 2 and cubic nonlinearity χ (3) ) of the organics thin films sensitized with fullerenes or nanotubes can be increased up to 3-4 orders of magnitude in comparison with the same parameters for bulk materials traditionally used for nonlinear optics.

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“…The possible mechanism to increase the laser-induced change in the refractive index, nonlinear refractive index and cubic nonlinearity has been explained in the papers [6][7][8].…”

Section: Carbon Nanotubes Influence On the Photorefractive Features Omentioning

confidence: 99%

Carbon Nanotubes Influence on Balk and Surface Properties of the Optical Materials

Каманина¹

2011

Carbon Nanotubes - Polymer Nanocomposites

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Refractive Index of Organic Systems Doped with Nano-Objects

Cited by 28 publications

References 21 publications

Peculiarity of the Optical Limiting Effect in the Organics Doped With the Fullerenes and With the Relative Nanoparticles

Peculiarity of the Optical Limiting Effect in the Organics Doped With the Fullerenes and With the Relative Nanoparticles

Nanostructured Materials for Optoelectronic Applications

Carbon Nanotubes Influence on Balk and Surface Properties of the Optical Materials

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