New trends in femtosecond pulsed laser deposition and femtosecond produced plasma diagnostics

F. Garrelie; C. Donnett; A. S. Loir; N. Benchikh

doi:10.1117/12.669122

Abstract

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. The 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. Nanostructured 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.

Citation Download Citation

F. Garrelie, F. Garrelie, C. Donnett, C. Donnett, A. S. Loir, A. S. Loir, N. Benchikh, N. Benchikh, } "New trends in femtosecond pulsed laser deposition and femtosecond produced plasma diagnostics", Proc. SPIE 6261, High-Power Laser Ablation VI, 62610L (7 June 2006); doi: 10.1117/12.669122; https://doi.org/10.1117/12.669122

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