Laser-microdroplet interactions influence the quality of nanoparticle deposition on a substrate. When a microdroplet and its impinging spot are heated, the microdroplet can evaporate gently, boil immediately after impingement, or bounces back inhibiting the deposition process. The interaction between a laser and droplets carrying semiconductor and metal nanoparticles is studied for different laser powers. The results indicate that the laser is refocused by the droplets, and deposition of nanoparticles and formation of nanofeatures are achieved under certain conditions. On the other hand, when the laser power exceeds a critical value, heating up the substrate at a specific temperature, microdroplets bounce back from the substrate, except for the cases of liquids with low reflectance coefficient and high absorption coefficient, where a new laser-spraying regime is observed.

中文翻译：

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Bessel束流加热的带有纳米颗粒的微滴的热响应沉积

激光-微滴相互作用会影响纳米颗粒在基材上的沉积质量。当微滴及其撞击点被加热时，微滴会缓慢蒸发，撞击后立即沸腾，或反弹回去，从而抑制了沉积过程。针对不同的激光功率，研究了激光与载有半导体和金属纳米颗粒的液滴之间的相互作用。结果表明，激光通过液滴重新聚焦，并在一定条件下实现了纳米颗粒的沉积和纳米特征的形成。另一方面，当激光功率超过临界值时，在特定温度下加热基板，除了液体的反射系数和吸收系数高的情况外，微滴都会从基板弹回，