Improved index modulation and stability of photorefractive polymers using merocyanine dyes

Klaus Meerholz; Reinhard Bittner; Yessica De Nardin; Christoph R. Braeuchle; Ruediger W. Wortmann; Frank Wuerthner

doi:10.1117/12.328175

23 October 1998 Improved index modulation and stability of photorefractive polymers using merocyanine dyes

Klaus Meerholz, Reinhard Bittner, Yessica De Nardin, Christoph R. Braeuchle, Ruediger W. Wortmann, Frank Wuerthner

Author Affiliations +

Proceedings Volume 3471, Xerographic Photoreceptors and Organic Photorefractive Materials IV; (1998) https://doi.org/10.1117/12.328175
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Recently, donor-acceptor substituted methine chromophores with a large figure-of-merit for incorporation into photorefractive polymers with low glass-transition temperature have become available. However, their rather polar nature lead to aggregate formation and dipole cancellation, thus limiting their use in typical non-polar photoconducting matrices. By increasing the polarity of the matrix we were able to overcome this problem. The material we report shows unprecedented performance compared to previously known materials, is sufficiently resistant against phase separation, and operates in the NIR at typical wavelengths of commercially available high-power laser diodes.

Citation Download Citation

Klaus Meerholz, Reinhard Bittner, Yessica De Nardin, Christoph R. Braeuchle, Ruediger W. Wortmann, and Frank Wuerthner "Improved index modulation and stability of photorefractive polymers using merocyanine dyes", Proc. SPIE 3471, Xerographic Photoreceptors and Organic Photorefractive Materials IV, (23 October 1998); https://doi.org/10.1117/12.328175

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