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Cascading of Second‐Order Nonlinearities in Polar Materials
Author(s) -
Bosshard Christian
Publication year - 1996
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19960080503
Subject(s) - materials science , nonlinear system , nonlinear optical , order (exchange) , polar , signal (programming language) , nonlinear optics , optics , engineering physics , nanotechnology , optoelectronics , physics , computer science , quantum mechanics , finance , economics , programming language
The combination of two second‐order nonlinear optical (NLO) processes , termed cascading, can induce third‐order nonlinearities, which are of major interest for all‐optical signal processing. The concept of cascading and the basic ideas behind it are explained and some of the molecules of greatest potential in this area (e.g., DANPH, see Figure) introduced. Methods for determining cascaded nonlinearities, effects based on cascaded processes, and materials considerations are also reviewed.