9 October 1998 Resonantly enhanced degenerate four-wave mixing at 10.6 μm in poly(methyl methacrylate) doped with different dyes
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Abstract
A resonant enhanced phase-conjugate from poly polymer doped with DCM, and Sulforhodamine was observed using the 10P20 CO2 laser line. The effect of the dye concentration on the phase conjugate reflection coefficient was observed and was found to have an optimum value. The Z-Scan experiment was carried out and (chi) 3 was determined. As, the Z-scan offers a practical method to determine the sign and magnitude of refractive nonlinearities that offers simplicity as well as high sensitivities. The magnitude of refractive nonlinearities was compared from both Z-Scan and DFWM and was found to be in a close agreement. To our knowledge this is the first time PC signal to be observed from PMMA:DCM at 10 micrometers . Also, FTIR was performed for these samples and will be reported as well.
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Abdalla M. Darwish, Tommy Thompson, Mostafa Dokhanian, Alton Williams, "Resonantly enhanced degenerate four-wave mixing at 10.6 μm in poly(methyl methacrylate) doped with different dyes", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); doi: 10.1117/12.326870; https://doi.org/10.1117/12.326870
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