Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

Fundamental Tuning of the Two-Photon Absorption in Multipodal Push-Pull Chromophores

Autoři: Bureš Filip

Rok: 2016

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Fundamental Tuning of the Two-Photon Absorption in Multipodal Push-Pull Chromophores	Multiphoton absorbing (MPA) molecules are currently attracting considerable attention of organic and material chemists as well as physicists. The simultaneous absorption of two photons by a molecule has been theoretically predicted as early as 1931 by M. Göppert-Mayer and experimentally verified after the invention of the laser (1960). Two-photon absorption (2PA), a nonlinear optical phenomenon related to the imaginary part of the third-order nonlinear susceptibility, constitutes the physical origin of numerous applications such as up-converted lasing, two-photon microscopy and imaging, 3D microfabrication and 3D optical data storage, optical limiters etc. In this contribution, we will report on a series of tripodal, quadrupolar and linear push-pull molecules with central triphenylamine donor and peripheral cyano substituted acceptors (Figure 1). These molecules possess systematically altered pi-linker, cyano acceptors as well as number of branches. Based on the experimental properties measured by differential scanning calorimetry, electrochemistry, one and two photon absorption/emission spectra, supported by the DFT calculations, thorough structure-property (2PA cross-section) relationships will be discussed.