Comparison of the productivity and ablation efficiency of different laser classes for laser ablation of gold in water and air
| Autor: | Stephan Barcikowski, Cormac McDonnell, Heinz P. Huber, Sarah Dittrich, Bilal Gökce, René Streubel |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Range (particle radiation) Laser ablation Materials science business.industry medicine.medical_treatment Chemie Pulse duration 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Ablation Laser 01 natural sciences Fluence law.invention Volume (thermodynamics) law 0103 physical sciences medicine Optoelectronics General Materials Science Laser power scaling 0210 nano-technology business |
| Popis: | In this study, we compare different laser systems used for the synthesis of nanoparticles. The productivity and ablation efficiency of laser ablation of gold in water and in air are determined for three pulsed laser systems with comparable pulse energy but different pulse duration and repetition rate. All experiments are performed in a fluence range of up to $$20\,\hbox {J}/\hbox {cm}^{2}$$ . The highest productivity among the considered lasers is found for a high-power picosecond laser, which shows 12 times higher ablation rate for the ablation in air compared to ablation in liquid. Further, we find that the threshold fluence for ablation in air is up to 1.9 times higher than for ablation in water. The highest ablation efficiency, which is defined as an energy specific ablation volume by the ablation rate divided by the laser power, is found for the low power, compact nanosecond laser system. |
| Databáze: | OpenAIRE |
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