Resonant scattering and absorption in the titanate-based nanoplatelet dispersions in near ultraviolet region

Extinction enhancement and nonlinear near-resonant absorption of potassium polytitanate nanoplatelets were experimentally studied in the near-UV region. Phenomenological models such as the one-oscillator Lorentz model for dielectric function and the two-level model with the depleted ground state wer...

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Bibliographic Details
Published inApplied optics. Optical technology and biomedical optics Vol. 51; no. 16; p. 3675
Main Authors Zimnyakov, Dmitry A, Ushakova, Olga V, Gorokhovsky, Alexander V, Tretyachenko, Elena V, Isaeva, Elena A, Isaeva, Anna A, Pravdin, Alexander B
Format Journal Article
LanguageEnglish
Published United States 01.06.2012
Subjects
Absorption
Algorithms
Light
Models, Theoretical
Nanoparticles - chemistry
Scattering, Radiation
Spectrophotometry, Ultraviolet - methods
Titanium - chemistry
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Summary:Extinction enhancement and nonlinear near-resonant absorption of potassium polytitanate nanoplatelets were experimentally studied in the near-UV region. Phenomenological models such as the one-oscillator Lorentz model for dielectric function and the two-level model with the depleted ground state were used to interpret the experimental data. The introduced model parameters demonstrate the adequately high sensitivity to variations in nanoplatelet morphology and chemical environment.
ISSN:2155-3165
DOI:10.1364/AO.51.003675