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Information × Registration Number 0223U005040, 0123U103493 , R & D reports Title Innovative photonic technologies of bio-medical direction for the post-war reconstruction of Ukraine popup.stage_title Head Bondar Mykhailo V., Доктор фізико-математичних наук Registration Date 13-12-2023 Organization Institute of Physics of National Academy of Sciences of Ukraine popup.description2 Research object - organic molecules of fluorescent dyes, nanostructured metal and semiconductor surfaces. Purpose of work - comprehensive characterization of new fluorescent molecular labels and probes by linear and nonlinear optical methods and creation of original laser-induced structures. Results and their novelty. 3 tasks of the 1st stage of the Project have been fully completed: 1. The steady-state linear absorption, fluorescence, and excitation anisotropy spectra of squaraine dye 2,4-Bis[4-(N,N-diphenylamino)-2,6-dihydroxyphenyl]-squaraine were obtained, and its solvatochromic and concentration behavior was analyzed. 2. The principle scheme of the experiment for studying the phenomenon of non-degenerate two-photon stimulated emission quenching of dyes has been developed. 3. Spectra of characteristic radiation during the formation of LIPS in different polarizations were obtained. The novelty of the results is that the excitation anisotropy spectrum of the squaraine dye 2,4-Bis[4-(N,N-diphenylamino)-2,6-dihydroxyphenyl]squaraine was obtained for the first time. For the first time, a technique for determining two-photon absorption cross-sections based on low-frequency loss-modulation technique when passing through a nonlinear medium is proposed. For the first time, the polarization spectra of the characteristic radiation during the formation of LIPSS were obtained. Product Description popup.authors Blonskyi Ivan Vasyliovych Bondar Mykhailo V. Gryn Volodymyr O. Dmitruk Igor M. Kadan Viktor Mykolayovych Klishevych Georgiy V Kostetskyi Anton Olegovych Kuziv Yaroslav B. Piryatinski Yuri Petrovich popup.nrat_date 2023-12-13 Close