ABSTRACT

Pulsed IR lasers were employed to irradiate high boiling elements, such as C, Mo, Ta, W and Re, in high vacuum. The ablation yield, given in terms of removed mass per pulse, was investigated using a ns laser at intensities of the order of 10¹⁰ W/cm² and a sub-ns laser operating at about 10¹⁵ W/cm². The produced plasma in high vacuum was studied by the time-of-flight measurements of emitted ions. The plasma-accelerated particles can be deposited and implanted on a near substrate to form a very adherent thin film useful for applications involving high temperatures and hard materials.

中文翻译：

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红外激光烧蚀高沸点元素（C，Mo，Ta，W和Re）

摘要

使用脉冲红外激光在高真空下辐照高沸点元素，例如C，Mo，Ta，W和Re。以每脉冲去除质量表示的烧蚀产量，是使用ns激光以10 ¹⁰  W / cm ²量级的强度和亚ns激光以约10 ¹⁵  W / cm ^2的强度进行研究的。通过对发射离子的飞行时间测量研究了在高真空下产生的等离子体。可以将等离子体加速的粒子沉积并注入到附近的基板上，以形成非常粘的薄膜，可用于涉及高温和硬质材料的应用。