Wavelength dependence of ultrafast and large third-order non-linear optical response of polyacetylene nanoparticlesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The third-order optical non-linearity was measured in nanopolyacetylene using femtosecond optical Kerr effect technique at wavelength from 790 to 860 nm. The ultrafast non-resonant effective second-order hyperpolarizibility for single polyacetylene nanoparticle was estimated to be as large as 1.0*10/sup -27/ esu, which corresponding to the gamma /sub c/ of single carbon atom contribution equals to 5.0*10/sup -33/ esu. We ascribed the observations to the highly ordered structure of nanopolyacetylene and delocalization of the it electrons along the conjugated chains was supposed to be responsible for such properties. (16 References).