Abstract
We have investigated the nonlinear optical performance of new UV photostable dyes, didecyl and didecyloxy substitutedpara-polyphenyl heptamers (DDPPH and DDOPPH hereafter, respectively) using the techniques of degenerate four-wave mixing (DFWM) and optical Kerr gate (OKG). The studies were performed on the dyes dissolved in THF solution and doped in sol-gel processed composite-glass. The magnitudes and the signs of the real and the imaginary components of the complex third-order optical susceptibilities were determined by the heterodyned OKG method and compared to the values obtained from concentration dependent homodyne Kerr gate and DFWM measurements. The observed effective second hyperpolarizability γ values are dependent on the optical intensity and the pulse width of the pumping source beam. Doping of the dyes in composite-glass allows to increase the interaction length providing the prospect of using them as building blocks for photonic devices.
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Gvishi, R., Prasad, P., Reinhardt, B. et al. Third-Order Optical Nonlinearity Studies of p-Heptaphenyl Derivatives-Doped Sol-Gel Processed Composite Glass and THF Solution by Degenerate Four-Wave Mixing and Optical Kerr Gate Measurements. Journal of Sol-Gel Science and Technology 9, 157–167 (1997). https://doi.org/10.1023/A:1026417230675
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DOI: https://doi.org/10.1023/A:1026417230675