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28 October 2005 Optimizing electro-optic activity in chromophore/polymer composites and in organic chromophore glasses
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Abstract
The motivation for use of organic electro-optic materials derives from (1) the inherently fast (sub-picosecond) response of π-electron systems in these materials to electrical perturbation making possible device applications with gigahertz and terahertz bandwidths, (2) the potential for exceptionally large (e.g., 1000 pm/V) electro-optic coefficients that would make possible devices operating with millivolt drive voltages, (3) light weight, which is a concern for satellite applications, and (4) versatile processability that permits rapid fabrication of a wide variety of devices including conformal and flexible devices, three dimensional active optical circuitry, hybrid organic/silicon photonic circuitry, and optical circuitry directly integrated with semiconductor VLSI electronics. The most significant concerns associated with the use of organic electro-optic materials relate to thermal and photochemical stability, although materials with glass transition temperatures on the order of 200°C have been demonstrated and photostability necessary for long term operation at telecommunication power levels has been realized. This communication focuses on explaining the theoretical paradigms that have permitted electro-optic coefficients greater than 300 pm/V (at telecommunication wavelengths) to be achieved and on explaining likely improvements in electro-optic activity that will be realized in the next 1-2 years. Systematic modifications of materials to improve thermal and photochemical stability are also discussed.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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, Allyson Sago, Nishant Bhatambrekar, Sanchali Bhattacharjee, Jessica Sinness, Scott Hammond, Nicholas Buker, Robert Snoeberger, Mark Lingwood, Harry Rommel, Joe Amend, Sei-Hum Jang, Antao Chen, and William Steier "Optimizing electro-optic activity in chromophore/polymer composites and in organic chromophore glasses", Proc. SPIE 5990, Optically Based Materials and Optically Based Biological and Chemical Sensing for Defence II, 59900C (28 October 2005); https://doi.org/10.1117/12.632749
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