14 July 2003 Recent progress in developing highly efficient nonlinear optical chromophores and side-chain dendronized polymers for electro-optics
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Proceedings Volume 4991, Organic Photonic Materials and Devices V; (2003); doi: 10.1117/12.475459
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States
Abstract
Recent progress in developing high-performance nonlinear optical chromophores and polymers for electro-optics is reviewed. Using the single-mode focused microwave irradiation, a diversified family of 2,5-dihydrofuran derivatives has been synthesized as a new class of tunable electron acceptors. Very large r33 values (128 and 116 pm/V at 1.3 μm) have been demonstrated by doping one of the 2-dicyanomethylen-3-cyano-4,5,-dimethyl-5-trifluoromethyl-2,5-dihydrofuran (CF3-TCF)-based chromophores in poly(methyl methacrylate) (PMMA) and a high Tg polyquinoline (PQ-100), respectively. An excellent long-term temporal stability at 85°C has also been maintained in the PQ system. Two side-chain dendronized NLO polymers have been synthesized. Using a mild, simple, and generally applicable post-functionalization method, highly polarizable chromophores with dendritic modification has been covalently attached to side chains of poly(4-hydroxystryene). This approach provides the combined advantages of achieving better poling efficiency through the dendritic effect and shortening the development time required for E-O dendrimer synthesis. Systematic property comparison between these polymers and other conventional NLO polymers, such as guest-host and simple side-chain polymers, has been performed. Exceptionally high poling efficiency (a very large E-O coefficient of 97 pm/V at 1.3 μm) and good temporal stability at room temperature were dmeonstrated in this dendronized side-chain polymer system.
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Jingdong Luo, Sen Liu, Marnie Haller, Hongxiang Li, Tae-Dong Kim, Kyoung-Soo Kim, Hong-Zhi Tang, Seok-Ho Kang, Sei-Hum Jang, Hong Ma, Larry Raymond Dalton, Alex K. Y. Jen, "Recent progress in developing highly efficient nonlinear optical chromophores and side-chain dendronized polymers for electro-optics", Proc. SPIE 4991, Organic Photonic Materials and Devices V, (14 July 2003); doi: 10.1117/12.475459; https://doi.org/10.1117/12.475459
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KEYWORDS
Polymers

Chromophores

Nonlinear optics

Microwave radiation

Electro optics

Electro optic polymers

Dendrimers

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