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Proceedings Paper

Electrostatic self-assembly processes for noncentrosymmetric thin films and devices
Author(s): Kristie M. Lenahan; Yanjing Liu; Youxiong Wang; Richard O. Claus
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Paper Abstract

The electrostatic self-assembly (ESA) method of creating multifunctional, multi-component thin films layer by layer has proven to yield noncentrosymmetric structures that possess large second order nonlinear responses. The nature of the deposition process results in an alignment of the NLO chromophores that is stable over time, in contrast to poled polymers. ESA nonlinear optical thin films offer the additional major advantages of excellent homogeneity for low scattering loss, high thermal and chemical stability, simplicity of fabrication and low cost. The polar ordering of molecules that occurs due to the inherent nature of the ESA process suggests that a number of NLO thin films may be synthesized using both standard chromophore dyes and molecules specifically designed to yield an enhanced macro- scale net dipole moment. Consequently, we have designed and synthesized several new NLO polymers and fabricated noncentrosymmetric thin-films using the ESA process. These novel polymer films exhibit substantial (chi) (2) values as well as uniform growth and exceptional film ordering.

Paper Details

Date Published: 12 July 1999
PDF: 9 pages
Proc. SPIE 3675, Smart Structures and Materials 1999: Smart Materials Technologies, (12 July 1999); doi: 10.1117/12.352783
Show Author Affiliations
Kristie M. Lenahan, Virginia Polytechnic Institute and State Univ. (United States)
Yanjing Liu, NanoSonic, Inc. (United States)
Youxiong Wang, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 3675:
Smart Structures and Materials 1999: Smart Materials Technologies
Manfred R. Wuttig, Editor(s)

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