Third-Order Nonlinear Optical Properties and Electroabsorption Spectra of an Organic Biradical, [Naphtho[2,1‑d:6,5‑d′]bis([1,2,3]dithiazole)]

Thin films of a thiazyl biradical, naphtho[2,1-d:6,5-d′]bis([1,2,3]dithiazole), abbreviated as NT, exhibit nonlinear optical properties with a large third-order nonlinear susceptibility of 2.1 × 10–11 esu. The electroabsorption and low-temperature-absorption measurements reveal a series of degenerat...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2014-02, Vol.118 (8), p.4303-4308
Main Authors: Takauji, Keigo, Suizu, Rie, Awaga, Kunio, Kishida, Hideo, Nakamura, Arao
Format: Article
Language:English
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Summary:Thin films of a thiazyl biradical, naphtho[2,1-d:6,5-d′]bis([1,2,3]dithiazole), abbreviated as NT, exhibit nonlinear optical properties with a large third-order nonlinear susceptibility of 2.1 × 10–11 esu. The electroabsorption and low-temperature-absorption measurements reveal a series of degenerate electronic states, which is probably caused by the biradical character of NT. It is concluded that this degeneracy should enhance the third-order nonlinear optical properties.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp4093332