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Third-Order Nonlinearities in Organic Polymers and the Role of Microscopic Cascading of Second-Order Hyperpolarizabilities

 

作者: Gaetano Assanto,   Dieter Neher,   GeorgeI. Stegeman,   WilliamE. Torruellas,   ManuelB. Marques,   WinfriedH. G. Horsthuis,   GuusR. Möhlmann,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1992）
卷期: Volume 222, issue 1  

页码: 33-43

 

ISSN:1058-725X

 

年代: 1992

 

DOI:10.1080/15421409208048678

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

We investigate the third-order nonlinearity of DANS and DAN2 side-chain polymers by tunable third-harmonic generation and nonlinear distributed coupling. The large third-order susceptibility can be interpreted in terms of microscopic cascading of second-order hyperpolarizabilities.

 

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