Počet záznamů: 1

Novel nonlinear optical materials based on dihydropyridine organic chromophore deposited on mica substrate

  1. 1.
    0342928 - UEK-B 2011 RIV NL eng J - Článek v odborném periodiku
    Kolev, T. - Koleva, B. - Kasperczyk, J. - Kityk, I. - Tkaczyk, S. - Spiteler, M. - Reshak, Ali H - Kuznik, W.
    Novel nonlinear optical materials based on dihydropyridine organic chromophore deposited on mica substrate.
    Journal of Materials Science-Materials in Electronics. Roč. 20, č. 11 (2009), s. 1073-1077 ISSN 0957-4522
    Výzkumný záměr: CEZ:AV0Z60870520
    Klíčová slova: nanoncrystallites
    Kód oboru RIV: BO - Biofyzika
    Impakt faktor: 1.020, rok: 2009

    We have synthesized novel composites based on a 1-methyl-4-[2-(3-methoxy-4-oxocyclohexadienyliden)ethyliden]-1,4-dihydropyridine chromophore incorporated into a polymer PMMA host (weight content of 7.5%) deposited on the mica substrate. In the result of simultaneous application of external dc-electric field and thermal heating we have measured values of second order optical effect of about 122 pm/V at 1,064 nm fundamental laser wavelength. This effect show very weak reversibility after the dc-field switching off. Optical properties of the embedded compound were elucidated by means of IR-LD spectroscopy of oriented colloids in nematic host. UV-spectroscopy, 1H- and 13C-NMR methods were also used. Quantum chemical calculations have been carried out in order to describe electronic structure and optical properties.
    Trvalý link: http://hdl.handle.net/11104/0185531