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Novel nonlinear optical materials based on dihydropyridine organic chromophore deposited on mica substrate
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SYSNO ASEP 0342928 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Novel nonlinear optical materials based on dihydropyridine organic chromophore deposited on mica substrate Author(s) Kolev, T. (BG)
Koleva, B. (BG)
Kasperczyk, J. (PL)
Kityk, I. (PL)
Tkaczyk, S. (PL)
Spiteler, M. (DE)
Reshak, Ali H (UEK-B)
Kuznik, W. (PL)Number of authors 8 Source Title Journal of Materials Science-Materials in Electronics. - : Springer - ISSN 0957-4522
Roč. 20, č. 11 (2009), s. 1073-1077Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords nanoncrystallites Subject RIV BO - Biophysics CEZ AV0Z60870520 - UEK-B (2005-2011) UT WOS 000269913500004 DOI 10.1007/s10854-008-9828-5 Annotation 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. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2011
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