High-speed multi-jets printing using laser forward transfer: time-resolved study of the ejection dynamics
| Autor: | Ludovic Rapp, Philippe Delaporte, Anne-Patricia Alloncle, Pere Serra, Emeric Biver |
|---|---|
| Přispěvatelé: | Laboratoire Lasers, Plasmas et Procédés photoniques (LP3), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Réserve Naturelle Nationale de Moёze-Oléron, LPO, Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
010302 applied physics
Jet (fluid) Materials science business.industry Bubble 02 engineering and technology Substrate (printing) 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention Lift (force) Physics::Fluid Dynamics Optics law Cavitation Fiber laser 0103 physical sciences [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic 0210 nano-technology business Beam (structure) |
| Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2014, 22 (14), pp.17122-17134. ⟨10.1364/OE.22.017122⟩ Optics Express, 2014, 22 (14), pp.17122-17134. ⟨10.1364/OE.22.017122⟩ |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/OE.22.017122⟩ |
| Popis: | International audience; This paper extends the current understanding of the laser-induced forward transfer (LIFT) process to the multi-jets ejection problem. LIFT has already been used to print micrometer-sized droplets from a liquid donor substrate with single pulse experiments. Here we study the dynamics of the high-speed multi-jets formation from silver nanoparticles ink films with a time-resolved imaging technique. A galvanometric mirrors head controls the spacing between adjacent pulses by scanning the focused beam of a high repetition rate UV picosecond laser along an ink-coated donor substrate. The laser pulses interact with the liquid film and generate cavitation bubbles that propel the ink away from the substrate and form the jets. When the spacing between consecutive pulses is substantially higher than the maximum diameter of the bubbles, there is no interaction between adjacent jets, and these remain unperturbed. However, when the pulses are brought closer significant jet-jet interaction takes place, which results in a clear deviation from the single jet dynamics. Thus, the cavitation bubbles acquire different shapes, the ink is ejected faster and along different directions depending on the spacing between the pulses, and each bubble alters the evolution of the previous one and shifts away from it. (C) 2014 Optical Society of America |
| Databáze: | OpenAIRE |
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