Wavelength dependence of ultrafast and large third-order non-linear optical response of polyacetylene nanoparticles

Autor:	Hong Jiang, Qihuang Gong, Wentao Huang, D. Yu. Paraschuk, V. M. Kobryanskii, X.Y. Pan, Chunling Liu, N. V. Chigarev
Rok vydání:	2002
Předmět:	Kerr effect Absorption spectroscopy Chemistry Analytical chemistry General Physics and Astronomy Nonlinear optics Molecular physics Wavelength Delocalized electron Polyacetylene chemistry.chemical_compound Femtosecond Physical and Theoretical Chemistry Ultrashort pulse
Zdroj:	Chemical Physics Letters. 365:117-121
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(02)01376-3
Popis:	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 −27 esu, which corresponding to the γ c of single carbon atom contribution equals to 5.0×10 −33 esu. We ascribed the observations to the highly ordered structure of nanopolyacetylene and delocalization of the π electrons along the conjugated chains was supposed to be responsible for such properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2af342729c0e0d7dcdbd2ed54d84acfa https://doi.org/10.1016/s0009-2614(02)01376-3 Zobrazit plný text záznamu Full Text from ScienceDirect