Non-linear optical properties of nanosized metal oxide particles obtained in plasma discharge in liquid phase under ultrasonic cavitation

Krasovskiĭ, V. I.; Феофанов, И. Н.; Rasmagin, S. I.; Zadorin, D. A.; Zakharyan, Roksana; Kazaryan, М. A.; Чайков, Л. Л.; Булычев, Н. А.; Averyushkin, A. S.; Garibyan, B.A.

doi:10.1117/12.2303414

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Data reported in literature [11][12][13][14][15][16], showed that ultrasonic treatment of aqueous dispersions of particles in the presence of polymer stabilizers is leading to a significant improvement of the stability of such dispersions in comparison with dispersions prepared without ultrasonic action. It has been proven by IR-analysis that the firmness and stability of the adsorption layers of polymer were increased and improved by the ultrasoniс action.…”

Section: Resultsmentioning

confidence: 99%

Exploration of Amphipolar Copolymer Adsorption on the Hydrophobic Surface

Nikolay*,

Bulychev

2019

IJRTE

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Section: Resultsmentioning

confidence: 99%

Exploration of Amphipolar Copolymer Adsorption on the Hydrophobic Surface

Nikolay*,

Bulychev

2019

IJRTE

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“…In plasma discharge, chemical conversations in liquid, in which it develops, are implemented. In hydrocarbon liquid phase, the alteration of chemical composition of liquid phase with the formation of compounds with lower molecular mass, hydrogen-containing fuel gas and nanosized particles of solid phase (carbon) takes place [5][6][7].…”

Section: Discussionmentioning

confidence: 99%

Electric Discharge in Liquids under the Effect of Vibration

Nikolay*,

Bulychev

2019

IJRTE

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In this study, plasma discharge in liquids at intensive ultrasonic field above the cavitation threshold has been proven to be of great interest for initiation of various physical and chemical processes. The feature of arc discharge in liquid media is the localization of plasma region near the electrodes and "falling" form of volt-ampere characteristics. In the region of intensive cavitation, the fraction of gas-vapor component in the liquid exists, therefore it can be assumed that the electric breakdown in the cavitation region should become easier, which can result in the initiation of various forms of discharges.

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“…Previously, the nonlinear 2PA coefficient β for ZnO nanoparticles dissolved in water has been measured by the Z-scan facility to give the rescaled values for our experimental conditions (i.e., ~0.001 M concentration, ~40 nm size) ~1 cm/GW [ 20 , 21 ]. In Ag nanoparticle suspension, the coefficient β was measured at 160 fs and 10 ns laser pulse durations, giving the rescaled values for our experimental conditions (i.e., the concentration ~0.005 M, ~2 nm particle size) ~10 −4 cm/GW and

, respectively [ 5 ].…”

Section: Methodsmentioning

confidence: 99%

Stimulated Thermal Scattering in Two-Photon Absorbing Nanocolloids under Laser Radiation of Nanosecond-to-Picosecond Pulse Widths

et al. 2022

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Recent discoveries in nonlinear optical properties of nanoparticle colloids make actual the challenge to lower the energy threshold of phase conjugation and move it into the domain of shorter pulse widths. A novel effect of the stimulated Rayleigh-Mie scattering (SRMS) in two-photon absorbing nanocolloids is considered as a promising answer to this challenge. We report the results of experimental and theoretical study of the two-photon-assisted SRMS in Ag and ZnO nanocolloids in the nanosecond-to-picosecond pulse width domain. For 12 ns 0.527 μm laser pulses, the four-wave mixing SRMS scheme provides lasing and amplification of backscattered anti-Stokes signal in Ag nanocolloids in toluene at the threshold 0.2 mJ and the spectral shifts up to 150 MHz. For 100 ps 0.532 μm pulses, we observed for the first time efficient (over 50% in signal-to-pump ratio of pulse energies) SRMS backscattering of the anti-Stokes signal in Ag nanocolloids in toluene and predominantly Stokes signal in ZnO nanocolloids in water, with the spectral shifts up to 0.25 cm−1. We develop the first order-in-perturbation model of the four-wave mixing two-photon absorption-assisted SRMS process which shows that at nanosecond pulses, amplification is predominantly due to the thermal-induced coherent oscillations of polarization while the slow temperature wave acts also as a dynamic spatial grating which provides a self-induced optical cavity inside the interaction region. At a picosecond pulse width, according to our model, the spectral overlap between pump and signal pulses results in formation of only the dynamic spatial temperature grating, and we succeeded at recovering the linear growth of the spectral shift with the pump power near the threshold.

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Non-linear optical properties of nanosized metal oxide particles obtained in plasma discharge in liquid phase under ultrasonic cavitation

Cited by 3 publications

References 23 publications

Exploration of Amphipolar Copolymer Adsorption on the Hydrophobic Surface

Exploration of Amphipolar Copolymer Adsorption on the Hydrophobic Surface

Electric Discharge in Liquids under the Effect of Vibration

Stimulated Thermal Scattering in Two-Photon Absorbing Nanocolloids under Laser Radiation of Nanosecond-to-Picosecond Pulse Widths

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