Ion-solid interaction leads to significant modifications in the surface and bulk of different materials. MgF2 of a rutile crystalline structure is an important optical material for a large variety of applications. The single crystals were irradiated with energetic heavy ions of various kinetic energies and fluences. After irradiation, we utilized optical spectroscopy to study the ion-induced defects and their evolutions as a function of ion beam parameters. The absorption spectra show the creation of different types of ion-induced defects, namely F-, F2-, and F3-centers. The concentrations of the observed color centers as well as their creation efficiency are studied in terms of ion energy loss and fluence. The results are of high importance for understanding the degradation of optical materials in space environments.

中文翻译：

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通过快速重离子在 MgF2 单晶中产生色心：能量损失和通量依赖性


离子-固体相互作用导致不同材料的表面和体积发生重大变化。金红石状晶体结构的 MgF2 是一种重要的光学材料，适用于多种应用。单晶用各种动能和通量的高能重离子照射。照射后，我们利用光谱学研究离子诱导缺陷及其随离子束参数的演变。吸收光谱显示了不同类型的离子诱导缺陷的产生，即 F、F2 和 F3 中心。根据离子能量损失和通量研究观察到的颜色中心的浓度及其产生效率。结果对于了解光学材料在空间环境中的降解具有重要意义。