High-performance photorefractive polymer operating at 975 nm

Eralp, Muhsin; Thomas, Jayan; Tay, Savas; Li, Guoqiang; Meredith, Gerald; Schülzgen, Axel; Peyghambarian, N.; Walker, Gregory A.; Barlow, Stephen; Marder, Seth R.
August 2004
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1095
Academic Journal
A family of photorefractive polymer composites has been developed that enable high-performance device operation at a wavelength of 975 nm. This constitutes a major extension into the near-infrared spectral region for the operation of all-organic photorefractive devices. Utilizing our photorefractive materials, we demonstrate large net two-beam coupling gain of more than 100 cm-1, 60% diffraction efficiency in four-wave mixing experiments, and a fast response time of 33 ms, at an irradiance of 1 W/cm2.


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