Experimental study on stimulated scattering of ZnO nanospheres dispersed in water

Shi, Jiulin; Wu, Haopeng; Feng, Yan; Yang, Junjie; He, Xingdao

doi:10.1007/s11051-016-3333-1

Cited by 8 publications

(7 citation statements)

References 19 publications

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“…Here, χ represents the particle diameter parameter [-], r represents the particle diameter [m], and λ represents the wavelength [m] of the incident light. When χ < 1, the scattering is considered to be Rayleigh scattering; when χ ≧ 1, it can be considered to be Mie scattering [19]. The particle size of the silica particles used in this study was 500 nm.…”

Section: Light Scatteringmentioning

confidence: 99%

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Adaptation of Hansen solubility parameter in evaluating transparency of composite materials

Fujiwara

Nishida

Yamamoto

2019

Heliyon

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A B S T R A C TIn the preparation of polymer-based functional materials, it is often difficult to express the desired function using a single substance. Thus, multiple materials are often combined to achieve a desired function using methods such as the addition of a filler or lamination. However, when materials are mixed using a filler, the transparency of the polymer decreases. Therefore, a prediction indicator for transparency is needed. In this study, we focused on using the Hansen solubility parameter (HSP) as a predictor of transparency. The value of δ d , which is the dispersion force term of the solubility parameter, is considered to be related to the refractive index of the solvent. Silica particles were selected as model particles, and the HSP value was determined. We examined the possibility of evaluating the transparency in a solvent containing silica particles based on the HSP value, and our results indicated that a smaller difference in δ d between the particles and solvent corresponded with a higher transparency. The HSP value could be used as an index for evaluation of the dispersibility and solubility of the polymer. By using HSP theory in the material design of composite materials, it is thus considered possible to use the same index to simultaneously evaluate the dispersibility evaluation and predict the transparency of the filler.

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Section: Light Scatteringmentioning

confidence: 99%

“…Here, Q ext [-] is the scattering efficiency, ρ [-] is the phase difference of the light when passing through the particle diameter D p [m] from the center of the particle, and γ [ ] is the incident angle to the particle surface of the light. Also, ρ [-] is expressed as [19].…”

Section: Scattering Efficiencymentioning

confidence: 99%

Adaptation of Hansen solubility parameter in evaluating transparency of composite materials

Fujiwara

Nishida

Yamamoto

2019

Heliyon

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“…Herein, the span is set to be 6 MHz, which means the value of Δν is 1 MHz in the simulation. In order to conveniently execute the simulation, ρ i (ω)/k is set to be 0.0001, which characterizes the statistical value of ν i in the continuous scattering process 27 . Curves of different colors represent the normalized power spectra of the kth RBS source at various filtering number.…”

Section: Dynamic Analysis Model and Simulationmentioning

confidence: 99%

Spectrum evolution of Rayleigh backscattering in one-dimensional waveguide

Lan

Huang

et al. 2019

Opto-Electronic Advances

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Despite the tremendous awareness of Rayleigh scattering characteristics and its considerable research interest for numerous fields, no report has been documented on the dynamic characteristics of spectrum evolution (SpE) and physical law for Rayleigh scattering from a micro perspective. Herein, the dynamic characteristics of the SpE of Rayleigh scattering in a one-dimensional waveguide (ODW) is investigated based on the quantum theory and a SpE-model of Rayleigh backscattering (RBS) source is established. By means of simulation, the evolution law which represents the dynamic process of the spectrum linewidth at a state of continuous scattering is revealed, which is consistent with our previous experimental observation. Moreover, an approximate theoretical prediction of the existing relationship between the spectrum linewidth of RBS source and the transmission length in ODW is proposed, which theoretically provides the feasibility of constructing functional devices suitable to ascertain laser linewidth compression. The designed experimental scheme can be implemented provided the assumptions are fulfilled. In addition, a theoretical model of the micro-cavity structure to realize the deep compression of laser linewidth is proposed.

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“…Up today, the SMS effect has also been investigated in a number of other Mie scattering media, including nanoparticles of Au, Ag, and Au/Ag alloy suspended in toluene, − nanospheres of ZnO in water, nanocrystals of CuS in toluene, and organic nanospheres in water. , …”

Section: Introductionmentioning

confidence: 99%

Two-Photon Excitation Enhanced High-Efficiency and Phase-Conjugate Stimulated Mie Scattering of Perovskite Nanocrystals Suspended in n-Hexane

Chen

Liu

et al. 2020

J. Phys. Chem. C

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Two-photon excitation enhanced backward stimulated Mie scattering (SMS) is generated in a system of perovskite (CsPbBr x I 3-x ) nanocrystals (NCs) of ∼11 nm size suspended in nhexane, when pumped with ∼816 nm and ∼10 ns laser pulses. The major linear absorbance band of these PCs is in the 550−300 nm spectral range; thereby, at the pump wavelength (∼800 nm), a considerable two-photon excitation enhanced spatial redistribution of the PCs leads to the formation of an effective Bragg grating that ensures a lower pump threshold requirement and a higher energy transfer efficiency (η) from the pump pulse to the SMS output pulse. Under optimized experimental conditions, the measured efficiency in this system reaches a high value of η = 40%. In addition, the output backward SMS beam exhibits a superior optical phase-conjugation property, and the temporal behavior of SMS output has also verified the proposed theoretical model.

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Experimental study on stimulated scattering of ZnO nanospheres dispersed in water

Cited by 8 publications

References 19 publications

Adaptation of Hansen solubility parameter in evaluating transparency of composite materials

Adaptation of Hansen solubility parameter in evaluating transparency of composite materials

Spectrum evolution of Rayleigh backscattering in one-dimensional waveguide

Two-Photon Excitation Enhanced High-Efficiency and Phase-Conjugate Stimulated Mie Scattering of Perovskite Nanocrystals Suspended in n-Hexane

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