Reflection and transmission spectra in the range 200–1100 nm of thin (40 μm) polyamide films implanted with Co⁺ ions of energy 40 keV at ion-current density 4 μA/cm² in the dose range 2.5·10¹⁶–1.5·10¹⁷ cm^–2 are measured. The implantation leads to a significant (up to 80%) decrease of transmission through the implanted films and an increase of reflection from both the implanted and nonimplanted sides because of carbonization of the surface layer and formation of cobalt inclusions in it. Transmission of light incident on the implanted and nonimplanted sides was simulated and the dose dependence of the effective refractive index of the modified layer was determined in the framework of two- and three-layer models including one or two modified layers and the undamaged part of the film. The effective refractive index in the studied dose range was within 1.3–2.1.

中文翻译：

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钴离子注入改性聚酰胺薄膜的光学性能

离子和电流密度4μA/ cm ²的剂量范围2.5·10 ¹⁶ –1.5·10注入40 keV能量的Co ⁺离子（40μm）的聚酰胺薄膜（40μm）在200–1100 nm范围内的反射和透射光谱¹⁷厘米^–2被测量。由于表面层的碳化和其中形成的钴夹杂物，注入导致通过注入的薄膜的透射率显着降低（最多80％），并且从注入侧和非注入侧反射增加。模拟入射在植入侧和非植入侧上的光的透射，并在两层和三层模型的框架内确定改性层的有效折射率的剂量依赖性，该模型包括一层或两层改性层以及未损伤部分。电影。在研究剂量范围内的有效折射率在1.3-2.1之内。