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首页> 外文会议>Conference on High-Power Laser Ablation >New trends in femtosecond Pulsed Laser Deposition and femtosecond produced plasma diagnostics
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New trends in femtosecond Pulsed Laser Deposition and femtosecond produced plasma diagnostics

机译：Femtosecond脉冲激光沉积的新趋势和飞秒产生的等离子体诊断

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The availability of compact table top amplified femtosecond lasers and the technical simplicity of experimental design have opened the way to many recent and fast developments towards thin film elaboration by Pulsed Laser Deposition (PLD) with ultra short laser pulses, with the aim of producing materials of high quality previously unattainable or attainable only through more complex means.Tie first developments of PLD using femtosecond lasers were made on Diamond-Like Carbon thin films elaboration, with the attempt to reach high sp3 content. PLD with ultra short pulses was used recently to deposit several systems such as quasicrystals or oxides with a transfer of the target composition to the deposited films, even for compounds with complex stoechiometry. Femtosecond laser ablation from solid targets has shown its capability in producing nanoparticles of different materials, even in high vacuum conditions. Nanostmctured films of doped Diamond-Like Carbon were obtained recently, opening the way to large applications towards functional materials. The characteristics of the plasma are a well-suited signature of the physics of laser-matter interaction and plasma plume creation and expansion. Recent studies on the control of the film growth and femtosecond PLD processes will be reported.Emphasis on actual capability of the existing sources to elaborate high quality materials will be questioned in terms of energy per pulse, time width, repetition rates but also in the need for further source development and beam shaping improvement.
机译：紧凑型桌面放大的飞秒激光器的可用性和实验设计的技术简洁已经开辟了许多近期和快速发展的脉冲激光沉积（PLD）与超短期激光脉冲的薄膜制定，目的是生产材料以前通过更复杂的手段预先实现的高品质或可实现的。使用飞秒激光器的PLD的首次开发是在菱形碳薄膜纹理中进行的，试图达到高SP3含量。最近使用具有超短脉冲的PLD来沉积若干系统，例如将靶组合物转移到沉积的薄膜中，即使对于具有复杂的玻璃化学计量的化合物，也可以将靶组合物转移到沉积的膜中。来自固体靶的飞秒激光消融已经显示出其在生产纳米颗粒的不同材料的能力，即使在高真空条件下也是如此。最近获得了掺杂金刚石状碳的纳米型薄膜，对功能材料的大应用开放方式。等离子体的特征是激光物质相互作用和等离子体羽流的物理学签名和血浆的产生和扩张。最近关于控制薄膜生长和飞秒PLD流程的研究将被报告。在现有来源的实际能力上，以精细阐述高质量的材料，将在每次脉冲的能量，时间宽度，重复率而且还有需要的情况下质疑用于进一步的源开发和光束塑造改进。

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