&lt;title&gt;Photodynamics of nonlinear fullerene-containing media&lt;/title&gt;

Белоусова, И. М.; Belousov, V. P.; Danilov, O. B.; Grigor'ev, V. A.; Kalintsev, A. G.; Zgonnik, V. N.; Каманина, Н. В.; Zhevlakov, A. P.; Kris'ko, A. V.; Mironova, N. G.; Sosnov, E. N.; Gavronskaya, E. A.; Смирнов, В. А.; Yur'ev, M S; Ponomarev, A. N.; Yashin, V. E.

doi:10.1117/12.417716

Cited by 9 publications

(6 citation statements)

References 2 publications

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“…It should be repeated that the spectral range of efficient RSA for C60 molecules extends from 400 to 700 nm [81]. At λ<400 nm, the condition  S,T ex> S g , necessary for efficient RSA, is reversed, while at λ>700 nm, the cross section  S g becomes too small.…”

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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“…Some promises existed for getting the efficient optical limiting using SWCNT. During the recent years, a number of works investigating electron structure of carbon‐containing nanotubes have appeared …”

Section: Dispersions Of Carbon‐containing Nanoparticles In Matrices Omentioning

confidence: 99%

“…However, while RSA mechanism successfully works at introduction of nanostructures (such as fullerenes and porphyrins) into solid state matrices, the mechanism of photoinduced scattering is complicated for carbon‐containing nanoparticles introduced in solid matrices . We have shown in that, for instance, the introduction of fullerenes in solid matrices (polymethyl methacrylate PMMA, polyamide, microporous glass, sol–gel, and others) leads to a decrease of limiting factor more that to an order of magnitude, because of the exclusion of photoinduced scattering process form the mechanisms of limiting—in contrast with liquid matrices.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optical limiters of pulsed laser radiation based on carbon‐containing nanostructures in viscous and solid matrices

Белоусова

Videnichev

Volynkin

et al. 2014

Polymers for Advanced Techs

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Results of the study of optical limiters of pulsed laser radiation based on nonlinear effects in carbon nanostructures placed into viscous and solid matrices are presented. A nonlinear optical limiting was studied by nanomaterials based on multi-wall polyhedral carbon nanostructures (astralens) placed in a sol-gel matrix. Similar studies for single-wall and multi-wall carbon-containing nanotubes placed in polymer matrices with various viscosities were performed. No additional mechanism of optical limiting due to electron structure of single-wall carbon-containing nanotubes at their introduction into viscous and solid composite media was found. An influence of polymer matrix composition containing carbon nanotubes (CNTs) on a threshold and ratio of attenuation of laser radiation was demonstrated. The best limiting characteristics were observed at placing CNT into polymethylsiloxane matrix. An effect of "self-healing" of a medium after laser radiation passage through high viscous liquids was obtained. The high parameters of nonlinear optical limiting (the threshold of limiting 10 À5 J, ratio of attenuation 10 3 ) achieved for the composite material CNT (HiPCO High-Pressure Carbon Monoxide) and carbon nanofibers in high viscous and solid polymethylsiloxane media allow the design of protective filters for laser radiation operating in wide spectral range.

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“…Стоит обратить внимание, что именно открытие фуллеренов, углеродных нанотрубок (УНТ), квантовых точек (КТ), других наночастиц стимулировало процесс поиска новых сред, эффективно поглощающих лазерное излучение в широком диапазоне спектра и интенсивностей засветки [1][2][3][4][5][6][7][8][9][10]. В работе [4] приведена многоуровневая система фуллерена С 60 и детально рассмотрен процесс обратного насыщенного поглощения как основной механизм ограничения.…”

Section: Introductionunclassified

Liquid Crystal Systems with WS2 Nanoparticles in the Optical Limiting Effect

Каманина¹,

Toikka²,

Kvashnin³

2021

Liq. Cryst. and their Appl.

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В настоящей работе рассмотрены возможности проявления эффекта оптического ограничения излучения видимого и ближнего ИК-диапазона спектра на примере жидкокристаллических (ЖК) систем в сравнении с сенсибилизированными растворами, суспензиями и тонкопленочными структурами. Впервые эффект оптического ограничения излучения показан для системы: жидкий кристалл -наночастицы WS 2 , облучаемой на длине волны импульсного Er-лазера 1,54 микрона. Экспериментальные результаты подкреплены квантово-химическими расчетами. На основе проанализированных экспериментальных данных предложено эффективно использовать разработанные ЖК-ячейки с разными типами наноструктур для лазерной и биомедицинской индустрии. Ключевые слова: органические материалы, жидкие кристаллы, WS 2 наночастицы, фуллерены, углеродные нанотрубки, механизмы ограничения.

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<title>Photodynamics of nonlinear fullerene-containing media</title>

Cited by 9 publications

References 2 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

Nonlinear optical limiters of pulsed laser radiation based on carbon‐containing nanostructures in viscous and solid matrices

Liquid Crystal Systems with WS2 Nanoparticles in the Optical Limiting Effect

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