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Kvantovaya Elektronika, 2017, Volume 47, Number 6, Pages 547–552 (Mi qe16621)  

This article is cited in 9 scientific papers (total in 9 papers)

Nonlinear optical phenomena

Effective dielectric function of TiO2 nanoparticles under laser pumping in the fundamental absorption band

D. A. Zimnyakovab, S. A. Yuvchenkoa

a Saratov State Technical University
b Institute of Precision Mechanics and Control, Russian Academy of Sciences, Saratov
Full-text PDF (745 kB) Citations (9)
References:
Abstract: A nonlinear optical response of TiO2 nanoparticles under pumping by 355-nm laser radiation is experimentally investigated. Using the data obtained by z-scanning with simultaneous measurement of the scattering intensity, the effective permittivity of particles is reconstructed as a function of the pump intensity. It is found that graphical mapping of the relationship between the real and imaginary parts of the permittivity can be obtained using an affine transformation of a similar map of the frequency-dependent dielectric function for the Lorentz model. It is shown that an increase in the pump intensity should lead to a red shift of the absorption maximum of nanoparticles and a rise in the plasma frequency, which is estimated (using a single-oscillator Lorenz model) from the obtained values of the real and imaginary parts of the effective permittivity for the probe radiation wavelength in use.
Keywords: nonlinear scattering, nonlinear absorption, dielectric function, titanium dioxide.
Received: 18.12.2016
Revised: 19.03.2017
English version:
Quantum Electronics, 2017, Volume 47, Issue 6, Pages 547–552
DOI: https://doi.org/10.1070/QEL16278
Bibliographic databases:
Document Type: Article
Language: Russian


Citation: D. A. Zimnyakov, S. A. Yuvchenko, “Effective dielectric function of TiO2 nanoparticles under laser pumping in the fundamental absorption band”, Kvantovaya Elektronika, 47:6 (2017), 547–552 [Quantum Electron., 47:6 (2017), 547–552]
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  • https://www.mathnet.ru/eng/qe16621
  • https://www.mathnet.ru/eng/qe/v47/i6/p547
  • This publication is cited in the following 9 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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