Luminescence spectra of polytetrafluoroethylene (Teflon), a Teflon film, and a polyethylene film are registered in wide wavelength range under excitation by radiations with different wavelengths. For the first time, we detect two-photon-excited luminescence in polymers at low intensity of exciting light. In Teflon, we also register luminescence in the blue range under excitation by ruby laser pulses.

中文翻译：

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聚乙烯和聚四氟乙烯中的双光子激发发光

聚四氟乙烯（Teflon），Teflon膜和聚乙烯膜的发光光谱在宽波长范围内被不同波长的辐射激发而记录。首次，我们在低激发光强度下检测聚合物中的双光子激发发光。在聚四氟乙烯中，我们还通过红宝石激光脉冲激发在蓝色范围内记录了发光。