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Proceedings Paper

Acentric lattice electro-optic materials by rational design
Author(s): Larry Dalton; Bruce Robinson; Alex Jen; Philip Ried; Bruce Eichinger; Philip Sullivan; Andrew Akelaitis; Denise Bale; Marnie Haller; Jingdong Luo; Sen Liu; Yi Liao; Kimberly Firestone; Nishant Bhatambrekar; Sanchali Bhattacharjee; Jessica Sinness; Scott Hammond; Nicholas Buker; Robert Snoeberger; Mark Lingwood; Harry Rommel; Joe Amend; Sei-Hum Jang; Antao Chen; William Steier
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Paper Abstract

Quantum and statistical mechanical calculations have been used to guide the improvement of the macroscopic electro-optic activity of organic thin film materials to values greater than 300 pm/V at telecommunication wavelengths. Various quantum mechanical methods (Hartree-Fock, INDO, and density functional theory) have been benchmarked and shown to be reliable for estimating trends in molecular first hyperpolarizability, β, for simple variation of donor, bridge, and acceptor structures of charge-transfer (dipolar) chromophores. β values have been increased significantly over the past five years and quantum mechanical calculations suggest that they can be further significantly improved. Statistical mechanical calculations, including pseudo-atomistic Monte Carlo calculations, have guided the design of the super/supramolecular structures of chromophores so that they assemble, under the influence of electric field poling, into macroscopic lattices with high degrees of acentric order. Indeed, during the past year, chromophores doped into single- and multi-chromophore-containing dendrimer materials to form binary glasses have yielded thin films that exhibit electro-optic activities at telecommunication wavelengths of greater than 300 pm/V. Such materials may be viewed as intermediate between chromophore/polymer composites and crystalline organic chromophore materials. Theory suggests that further improvements of electro-optic activity are possible. Auxiliary properties of these materials, including optical loss, thermal and photochemical stability, and processability are discussed. Such organic electro-optic materials have been incorporated into silicon photonic circuitry for active wavelength division multiplexing, reconfigurable optical add/drop multiplexing, and high bandwidth optical rectification. A variety of all-organic devices, including stripline, cascaded prism, Fabry-Perot etalon, and ring microresonator devices, have been fabricated and evaluated.

Paper Details

Date Published: 20 September 2005
PDF: 12 pages
Proc. SPIE 5912, Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II, 59120A (20 September 2005); doi: 10.1117/12.617232
Show Author Affiliations
Larry Dalton, Univ. of Washington (United States)
Bruce Robinson, Univ. of Washington (United States)
Alex Jen, Univ. of Washington (United States)
Philip Ried, Univ. of Washington (United States)
Bruce Eichinger, Univ. of Washington (United States)
Philip Sullivan, Univ. of Washington (United States)
Andrew Akelaitis, Univ. of Washington (United States)
Denise Bale, Univ. of Washington (United States)
Marnie Haller, Univ. of Washington (United States)
Jingdong Luo, Univ. of Washington (United States)
Sen Liu, Univ. of Washington (United States)
Yi Liao, Univ. of Washington (United States)
Kimberly Firestone, Univ. of Washington (United States)
Nishant Bhatambrekar, Univ. of Washington (United States)
Sanchali Bhattacharjee, Univ. of Washington (United States)
Jessica Sinness, Univ. of Washington (United States)
Scott Hammond, Univ. of Washington (United States)
Nicholas Buker, Univ. of Washington (United States)
Robert Snoeberger, Univ. of Washington (United States)
Mark Lingwood, Univ. of Washington (United States)
Harry Rommel, Univ. of Washington (United States)
Joe Amend, Univ. of Washington (United States)
Sei-Hum Jang, Univ. of Washington (United States)
Antao Chen, Univ. of Washington (United States)
William Steier, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 5912:
Operational Characteristics and Crystal Growth of Nonlinear Optical Materials II
Ravindra B. Lal; Donald O. Frazier, Editor(s)

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